Living Mathematics and Science to the Full

Archive for the ‘Grade 6’ Category

Bibliography / Referencing


If you intend to go to Eskom Expo, your referencing must be like this!

REFERENCING / BIBLIOGRAPHY

Referencing means that you give credit to the various sources you have used when writing your assignment/report. A reference list should include any documentation that is not your own.
All sources should be arranged alphabetically according to the surname of the first author.

The references should be written in the following order:
Author’s surname and initials, year of publication, title (underlined), edition, place of publication, publisher. This is a Harvard Style.

1. Books:
e.g. Kritzinger, A.A.C. and Fourie, C.M.W. 1996
Basic Principles of Financial Management, Cape Town: Juta

2. Journals:
Journals should be written in the following order: author’s surname and initials, year of publication of the journal, title of article, title of journal (underlined as before), volume, pages.
e.g. Manning, T. 1996 “Three steps to the future“, Human Resource Management, 12(8), 8-9.

3. Chapters in books:
e.g. Smith, R.J. Comparative themes in higher education, in “Trends in Higher Education” edited by J.N. Green. London: Benton

4. Newspaper articles:
The reference should be written in the following order:
year, newspaper, date and month, page.
e.g. 1980. Business Day. 25 June: 7

5. Internet Referencing:
www Pages: e.g. Unkown(1995)Sentient microfilaments:
A tempest in a tubule (On-line). Available:
http:somecomputer.printer.edu/pub/harnad/psyc.95.3.26/consciousness/11/bixley
Date accessed:

6. Theses and Dissertations
e.g. Smith, R.H 1998. Critical Theory and University Transformation. DPhil thesis, Rhodes University, Grahamstown.

Source: http://www.exposcience.co.za/index.php/referencing-bibliography.html

Tips for your Science Expo


TYPES OF PROJECTS

Investigation

An investigation is a project in which you try to solve a problem or answer a question that you have identified. When you do an investigation, you follow a method that allows you to test an idea or solve a problem and come to a clear conclusion.
Projects for Expo must have original work done by participant e.g.

  • a survey of more than a 100 questionaires
  • experimental work.

Pure science

Pure science focuses on learning more about the world we live in by improving our knowledge at a fundamental and basic level. Little or no regard is given to applying this knowledge to practical applications.
Pure scientists conduct experiments or studies to test scientific hypothesis and develop theories. An important aspect of this experimentation involves identifying variables and, where possible, controlling them.

Applied science

Applied science makes use of laws, physical relationships and other knowledge developed in the pure sciences and applies this knowledge to human needs. Engineering is very closely related to applied science.
Companies make use of applied science in their research and development division to improve their products. Innovative ideas and inventions will sometimes be found in this type of project. Applied science forms the foundation for technology and applied technology.

Technology and applied technology

Technology and applied technology is the application of pure and applied science knowledge to meet a specific user need, most often in an industrial or commercial setting.

Brilliant innovation and invention is less important, rather a systematic method for user need identification as well as technology or knowledge application to meet the need.

A good project would demonstrate the development of a useful technology using a systematic design, build and test process

Engineering projects

An engineering project should state the engineering goals, development process and the evaluation of improvements. Engineering projects should include the following:

  • Computer Science projects
  • Define a need or “How can I make this better?”
  • Develop or establish design criteria (could be more than one)
  • Do background research and review literature to see what has already been done or what products already exist to fill a similar need. What makes them good and what makes them weak?
  • Prepare preliminary designs and a list of materials needed. Consider costs, manufacturing and user requirements.
  • Build and test a prototype of your best design. Consider reliability, repair and servicing.
  • Retest and redesign as necessary. Product testing.
  • Present results.

Computer Science Projects
These often involve creating and writing new algorithms to solve a problem or improve on an existing algorithm. Simulations, models or “virtual reality”.

Mathematics Projects

These involve proofs, solving equations, etc. Mathematics is the language of science and is used to explain existing phenomena or prove new concepts and ideas.

Theoretical Projects

These projects may involve a thought experiment, development of new theories and explanations, concept formation or designing a mathematical model.

STEP 1: Choosing a topic

The topic for your project should be something that you are interested in and that you want to learn more about. You may think of a good topic straight away just by looking at the list of Expo categories, or you may need to look for ideas for your topic. You can get ideas for projects from:

  • Newspaper and magazine articles
  • The internet
  • Television programmes
  • Practical problems from your community

Your idea for a project should be an original one. This means that it should be your own idea and not somebody else’s. Do not repeat an experiment from the school syllabus or choose a problem to which people already know the answer. For example “Determining the specific heat capacity on iron” is not an original topic for your Expo project. The method to follow is well known from school textbooks and you can easily look up the answer.

The best Expo projects are not always complicated, but they are imaginative and well carried out.
A good project is often:

  • a clever solution to a problem; or
  • a new idea for a piece of apparatus; or
  • a study or survey that no-one has done before.

Be original, but DO NOT choose a project that:

  • could be dangerous to yourself or others;
  • needs any experiments on insects, live animals or humans; or
  • involves collecting plants or animals that are protected by Nature Conservation laws.

Ask your teacher for advice if you are not sure whether your topic will make a suitable scientific Expo project.

STEP 2: Do a research plan

Every student should type a research plan which you should submit to your teacher/mentor/qualified scientist at the beginning of your project. Aim for an original and creative project! This plan shows how you intend to do your projectso it is written in the future tense.
The length of your research plan should be between 2-4 pages long.

Research plan for ALL projects must include the following:

A. Question or Problem being addressed

B. Hypothesis or Engineering Goal (Engineering projects only)

C. Description in detail of method or procedures that will answer the question you asked or solve the problem:

The following are important and key items that should be included when formulating ANY AND ALL research plans:

  • Procedures (method)
  • Variables: independent, dependent and controlled/fixed Data Analysis: how you will analyse the data

D. Bibliography: List the three(3) most important references (e.g. science journal articles, books, internet sites) that you used to get information about your topic and that you will refer to in your introduction/part A above. Check this site to ensure that you reference your sources correctly: http://www.exposcience.co.za/index.php/referencing-bibliography.html

STEP 3: Gather background information

  • Use books and internet sites for your research. A summary of your background information must be included in your introduction (this is called a literature review). Remember to record your references/bibliography

STEP 4: Collect data

  • Test your hypothesis/engineering goals.
  • Interview people interested in your topic.
  • Do surveys or send out questionnaires – a minimum of 100 people if applicable or make a working model to illustrate the solving of your problem.

Keep handwritten notes in a project data book (e.g. file, diary or scrap book). A project data book is your most important piece of work. Accurate and detailed notes make a logical and winning project. Good notes show consistency and thoroughness to the judges. Record data in the data book and then transfer to tables when writing your report.
Make sure you date every entry.

STEP 5: Results

  • Record data in tables.
  • Generate graphs from your tables.
  • Add photos with captions.
  • File a blank copy of your questionnaire/survey in your data book.

STEP 6: Discuss results 

  • Interpret the data or make comparisons.
  • Look at trends and patterns.
  • Note limitation and errors in your discussion

STEP 7: Conclusion(s)

  • Your conclusion(s) must be based on your findings and must be linked to your hypothesis/aim/engineering goals.
Eskom Expo International Science Fair

If selected to participate test your hypothesis again and make sure that you collect more data to support your hypothesis.

STEP 8: Evaluate the whole project

  • Review, Revise & Redo

STEP 9: Write a report using the following headings

  • Choosing a title for the project: Title must be simple descriptive & scientific.
  • State problem/aim and hypothesis/engineering goals.
  • Introduction, including information collected and description of project literature review.
  • Method/Procedures (numbered, logical, concise, third person includes variables)
  • Results (record of data in tables and graphs)
  • Analysis/discussion and interpretation of results (including errors and modifications).
  • Conclusion(s)
  • Bibliography/References (with a list of books, magazine articles or internet sites where you acquired important information)
  • Acknowledgements (this is a list of the people who helped you and the help each one gave. For example, someone might have lent you a piece of equipment, taken photographs for your poster or given you some important advice)
  • Abstract – compulsory for Regional Expo and Eskom Expo International Science Fair (maximum of 250 words on one page).
  • Plagiarism form.
  • Research Plan.

STEP 10: Showing your work

Your presentation must include the following:

  • Poster
  • Project data book
  • Report file
  • Surveys, Questionaires (if applicable)
  • Working model on table (if applicable)
  • Your presentation must be presented logically and must be eye-catching
  • Check with your Regional Science Fair Director if display boards are provided and what is the size and dimensions

Compulsary layout for display board

Left Side:

    • Problem & Aim
    • Background information/Introduction
    • Hypothesis or Engineering Goal
    • Method/procedure including variables

Middle:

    • Large title (Font size 150) (Same as submitted on entry to Regional Expo)
    • Name and Grade underneath the title
    • Results – graphs & analysis
    • Photos

Right Side: 

    • Discussion and Interpretation of results
    • Conclusion(s)
    • Acknowledgements

Your display is a very important part of your exhibit. Your display should be easy to read and understand. It should explain what you did, how you did it and what you found out. Make your presentation eye-catching and interesting. You want visitors at the Eskom Expo to stop and read about what you did.

Summarised information must be laid out in a logical order. Anyone who wants more information can read your report. (Your report file is also very important).

Report File

  • Neat file – contents page with headings below, dividers, logical order.
  • At the front of the file – plagiarism pledge, research plan and abstract 
  • Introduction including problem & literature review (Why you did the project and it includes evidence of background research and the value of your project).
  • Aim (to find out/to determine, etc).
  • Hypothesis/Engineering Goals (statement that you are going to test which includes independent and dependent variables).
  • Method/Procedure (How the project was carried out in the 3rd person and includes fixed variables.
  • Results (What happened – tables & graphs).
  • Analysis of Results (Results/findings/graphs explained in words, more extensive in report than on poster). 
  • Discussion & errors and modifications (Patterns and trends are noted and explained, anomalies/unusual results are discussed, limitations noted and clarified).
  • Conclusions (refer directly to aim/hypothesis & engineering goals incorporates results; states whether supports engineering goals or hypothesis).
  • References (which books and webpages you consulted and these must be referenced correctly, the first reference must be the one where you got your project idea from).
  • Acknowledgements (people you talked to, who helped you and state what help they gave you).

Project Data Book

  • This is a record of ALL your work – no matter how untidy it is!
  • Everything should be dated
  • File all emails
  • File notes from interviews
  • File all designs, photos and plans
  • File copies of articles/webpages you have read – either in alphabetical order or in order of importance to the project
  • File all survey questionnaires

WHAT IS AN ABSTRACT?

The purpose of an abstract is to serve as a link between the title of a scientific project (research study) which may be a brief paragraph or two (maximum of 250 words). The abstract is a useful summary of
the project that provides justification for the research. The abstract allows the reader to conclude whether your project write-up is worth reading.
Your abstract appears at the beginning of your project file and a copy must be displayed on your table.

How to Write an Abstract
The abstract should include the following headings:

Purpose of the Project/Experiment

  • An introductory statement of the reason for investigating the topic of the project.
  • A statement of the problem or hypothesis or engineering goals being studied.

Method Used

  • A summarisation of the key points and an overview of how the investigation was conducted.
  • An abstract does not give details about the materials used unless it greatly influenced the procedure or had to be developed to do the investigation.
  • An abstract should only include procedures done by the student. Work done by a mentor (such as surgical procedures) or work done prior to student involvement must not be included.

Data/Results

  • This section should provide key results that lead directly to the conclusion you have drawn.
  • It should not give too many details about the results but must include the most important data generated in the investigations.

Conclusion(s)

  • Conclusion(s) from the investigation should be described briefly.
  • The summary paragraph should reflect on the process and possibly state some applications and extensions of the investigation.
  • An abstract does not include a bibliography, references or acknowledgement.

Source: http://www.exposcience.co.za/index.php/student-information.html

Ethics at the Science Fair


ETHICS STATEMENT

Scientific fraud and misconduct are not condoned at any level of research or competition. Such practices include plagiarism, forgery, use of presentation of other researcher’s work as one’s own and fabrication of data. Fraudulent projects will fail to qualify for competition at any Eskom Expo events.

1. Plagiarism

What is plagiarism? It can be defined as follows:
To use another person’s words or ideas and to pretend that they are your own. The following are considered as plagiarism:

  • To steal or borrow another person’s work.
  • To pay another person to write your assignment.
  • To copy directly from a source without referencing the original source & without permission from the author(s)
  • To use another person’s ideas and build on them withoutgivi ng credit to the original ideas.
  • To paraphrase another person’s work word-for-word.
  • To present false data (fabricated, altered or borrowed without permission).

The worst form of plagiarism is to do it intentionally:

Plagiarism can also occur unintentionally: when you rewrite another person’s ideas or words in your own words, or use small sections of another person’s writings without acknowledging it as a source.
Fraudulent projects will be disqualified at all Eskom Expo events.

It is compulsory that every participant has a signed copy of the plagiarism form in their file.

2. Ethics

Ethics is concerned with what is right or wrong, good or bad, fair or unfair, responsible or irresponsible. Research on micro-organisms, human or animal subjects including surveys, need a form signed by a supervising scientist or teacher giving approval for the project to be done. Any surveys (questionnaires) need another form giving consent
or permission by parents or schools. Both forms need to be filled in the project file in the appendix.

Make sure your project is safe and ethical
Before you start a project, it’s important to know the rules – especially if you’re thinking of using animals, human subjects, hazardous equipment or materials, recombinant DNA or other biotechnological materials. (By the way, “animals” include pets and livestock and humans include family members and students in your class or school.) It’s
heartbreaking to have your project disqualified at any Eskom Expo events because you broke the rules – or maybe even the law! Any research or experiment on potentially hazardous biological agents, animal or human subjects must be done under the supervision of a qualified scientist/laboratory. A signed letter/from the qualified scientist or/and laboratory will be required before participating at any Eskom Expo events.

ETHICS INFRINGEMENTS

Students are encouraged to check their ethical infringements before exhibiting their projects at any Eskom Expo event.
Please note that the following are not allowed on any Eskom Expo project:

  • Living organisms including animals, fish, insects and plants
  • Agar plates and other growth mediums for microbiology studies
  • Human or animal parts including tissues and body fluids (for example blood, urine, hooves, skins etc)
  • Dangerous chemicals: Poisons, drugs, medications, controlled substances, hazardous substances and devices (for example firearms, weapons, ammunition, reloading devices, knives and any other sharp instruments)
  • Flammable substances
  • Photographs or other visual presentation depicting humans or vertebrate animals in surgical techniques, dissections, necropsies or other lab procedures or who belittle people in any way or show animals being harmed in any way
  • Brand names or any other branded products
  • Food substances that are not in completely sealed containers (plastic wrap is not acceptable as it can easily be removed).
  • Water except if in sealed apparatus
  • Any apparatus deemed unsafe by the Eskom Expo organisers.

NB:Photographs will be sufficient for judging
3. Safety
All electrical work must conform to the National Electrical Code and Exhibit Halls Regulations. Fire regulations will be strictly enforced. The on-site electrician may be requested to review any electrical work on any project. The safety guidelines presented here are general ones and other rules may apply to specific configurations.
4. Patents

Innovation and Development – Patents and Registered Designs

Some participants display projects that show innovative thinking and provide new products. Expo encourages the development of entrepreneurial projects, which may lead to the marketing of these products.
Participants are advised to obtain legal advice about patent applications before entering their work at any Eskom Expo.
Once a design or product has been on public display, it can NOT be patented. However, if an exhibit is displayed for judges only, no patent rights should be lost.
Refer to following website for more information on how to patent your project. http://patentsearch.cipc.co.za

Source: http://www.exposcience.co.za/index.php/ethics.html

Eskom Expo International Science Fair


Selection for the Eskom Expo International Science Fair is only for students in grades 6 – 12. The event is held in the break between term 3 & term 4 of the school calendar.

Each exhibit is given a space of maximum 1.5m table length and a display board. It is compulsory to use the display boards provided at ISF events – size and dimensions of the display board – height 1m; left side 50cm; middle 1.5m and right side 50cm. Look at the drawing below to see how to make the most of the space you are given.

Compulsary layout of display board at ISF

displayboard

Awards at Eskom Expo ISF

Participants are judged and awarded gold, silver and bronze medals.

Special Awards

There are numerous awards made by special interest groups such as:
Eskom Awards:

  • Best development project
  • Best energy project
  • Best female project
  • International trip to a science fair or science forum
  • A science lab for a rural Primary and Secondary School
  • Best energy efficiency project (energy and cost saving covered in all categories)

There are many prestigious awards presented by interested organisations at the ISF prize-giving ceremony. Visit the Expo website for the Hall of Fame, which lists previous winners.
Some finalists from Eskom Expo ISF are selected to participate in International Science Fairs in other countries.
Please note that participation at International Science Fairs is strictly for selected individual participants and invited Eskom Expo officials. No exceptions will be made.

Source:http://www.exposcience.co.za/index.php/national-finals.html

Bullying is also abuse!


“I endured 10 years of being bullied. For these 10 years I was mocked, hit and made a fool of by members of my classes and sometimes even by people who were my “friends”

I’m turning 20 on Monday. What really hit me hard as I thought back over the years is that I spent half my life being bullied and wishing that I was a different person or that I wasn’t alive. From 2001 until 2011 this was how life was for me. Being forced to be silent out fear for what the bullies would do to me and not to mention that the teacher didn’t seem to be able to do anything about it.

Bullying is a massive problem not just in South Africa but all over the world. It’s an issue that gets overlooked far too often. Now there are various forms of bullying including Cyber bullying where attackers are using social media to bring down their victims. Thoughts of suicide ran rampant through the victims mind and there have been a few who actually went through with it.

Voices have been silenced but I feel strongly it’s time for them to be heard.

Thank you for your incredible work at Lead SA, your Rape Awareness drive on KFM last week really moved me.”

Bullying is a form of abuse. If you are being bullied at school, or know someone who is, contact Childline’s 24-hour toll-free on 08000 55 555

Source: http://leadsa.co.za/?p=17731

Thank You for 2013


To all the students that I taught this year:

A thankful prayer for all the thoughts and gifts

Creator of all things, I thank You from the bottom of my heart for this wonderful thing that has happened to me. It know it is the result of your goodness toward me, and I pray that I may accept it as I should. In a world filled with many sufferings and sad occasions I am fortunate to be blessed in this way. I offer You my sincere gratitude and promise to remain united with You in good times and in bad. Amen.

A prayer for next year for all students

Creator of all things, true source of Light and Wisdom, lofty source of all Being, graciously let a ray of Your Brilliance penetrate into the darkness of my understanding and take from me the double darkness in which I have been born, sin and ignorance. Give me a sharp sense of understanding , a retentive memory, and the ability to grasp things correctly and fundamentally. Grant me the talent of being exact in my explanations, and the ability to express myself with thoroughness and charm. Point out the beginning, direct the progress, help in the completion. Amen

Children worldwide are less fit than their parents


Today’s kids can’t keep up with their parents. An analysis of studies on millions of children around the world finds they don’t run as fast or as far as their parents did when they were young.

On average, it takes children 90 seconds longer to run a mile (1.6 kilometer) than their counterparts did 30 years ago. Heart-relatedfitness has declined 5% per decade since 1975 for children ages nine to 17.

The American Heart Association, whose conference featured the research, says it’s the first to show that children’s fitness has declined worldwide over the last three decades.

“It makes sense. We have kids that are less active than before,” said Dr. Stephen Daniels, a University of Colorado pediatrician and spokesman for the heart association. World Health Organization numbers suggest that 80% of young people globally may not be getting enough exercise.

Recommended guidelines not met

Health experts recommend that children six and older get 60 minutes of moderately vigorous activity accumulated over a day. Only one-third of American kids do now.

“Many schools, for economic reasons, don’t have any physical education at all,” Daniels said.

Sam Kass, a White House chef and head of first lady Michelle Obama’s Let’s Move program, told the conference on Monday, “We are currently facing the most sedentary generation of children in our history.”

The new study was led by Grant Tomkinson, an exercise physiologist at the University of South Australia. Researchers analyzed 50 studies on running fitness — a key measure of cardiovascular health and endurance — involving 25 million children ages nine to 17 in 28 countries from 1964 to 2010.

The studies measured how far children could run in five to 15 minutes and how quickly they ran a certain distance, ranging from half a mile to 2 miles (3.2 kilometers). Today’s kids are about 15% less fit than their parents were, researchers concluded.

“The changes are very similar for boys and girls and also for various ages,” but differed by geographic region, Tomkinson said.

The decline in fitness seems to be leveling off in Europe, Australia and New Zealand, and perhaps in the last few years in North America. However, it continues to fall in China, and Japan never had much falloff — fitness has remained fairly consistent there. About 20 million of the 25 million children in the studies were from Asia.

In China, annual fitness test data show the country’s students are getting slower and fatter over the past couple of decades.

Too much focus on academics

Experts and educators blame an obsession with academic testing scores for China’s competitive college admissions as well as a proliferation of indoor entertainment options like gaming and web surfing for the decline.

China’s Education Ministry data show that in 2010 male college students ran 1,000 meters 14 to 15 seconds slower on average than male students who ran a decade earlier. Female students slowed by about 12 seconds in running 800 meters.

Tomkinson and Daniels said obesity likely plays a role, since it makes it harder to run or do any aerobic exercise. Too much time watching television and playing video games and unsafe neighborhoods with not enough options for outdoor play also may play a role, they said.

Other research discussed global declines in activity.

Fitness is “pretty poor in adults and even worse in young people,” especially in the United States and eastern Europe, said Dr. Ulf Ekelund of the Norwegian School of Sport Sciences in Oslo, Norway.

Source: http://www.health24.com/Fitness/News/Kids-worldwide-are-less-fit-than-their-parents-20131120

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16 Facts about sleep


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Good Grades Linked to Exercise


London – Exercise in early secondary school years can help girls get better grades in science, researchers say.

A study found the amount of physical activity undertaken by children at the age of 11 was linked to academic performance.

Regular moderate to vigorous exercise improved their marks. There was an even greater impact on results when the exercise became more intensive.

University researchers from Strathclyde, Dundee and Bristol tracked the progress of 5 000 children in the South West of England. The duration and intensity of daily physical activity were measured at 11, using a device called an accelerometer, worn on an elasticated belt.

The children’s academic performance in English, maths, and science was then formally assessed at the ages of 11, 13 and 15/16.

The analysis showed that at the ages of 11 and 13 better academic performance across all three subjects was linked to the amount of physical activity undertaken.

Such activity benefited girls’ performance in science in particular. By the age of 15/16, GCSE exam results also showed a link to exercise, with an increase in performance for every additional 17 minutes a day (boys) and 12 minutes a day (girls) spent doing more intensive exercise at the age of 11. – Daily Mail

Source: http://www.iol.co.za/lifestyle/family/kids/good-grades-linked-to-exercise-study-1.1600051#.UnaKmRaZNyE

Eating Healthy for Exams: Important


Cape Town – Final matric exams are only days away and parents are encouraged to ensure their children eat the right foods for bodies and brains to perform optimally.

Woolworths dietitian Cindy Chin says while the brain makes up two percent of the body’s total weight, it uses about 20 percent of the body’s energy at rest.

“Keeping the brain fuelled during studying and exam times means maintaining a pattern of regular, nutritious meals and snacks.”

Because breakfast makes an important contribution to the day’s total energy intake, Chin cautions that if a child skips this meal, they may become tired, irritable and find it difficult to concentrate.

The brain’s primary energy source is glucose, best obtained from low glycaemic index (GI) foods like whole grain starches, carbohydrate-rich vegetables, fruit and legumes. She says adding protein like meat, chicken, fish, eggs and dairy, and healthy fats to meals helps lower the glycaemic index.

Foods that are high in added sugar and refined starches, and low in fibre – biscuits, sweets, sweetened drinks – should be avoided. “They can set you up for a sugar spike, followed by lowered energy levels,” she warns.

Over the years, fat has gained a bad reputation, and people have tried to cut back on its intake. But the much maligned compound is vital to brain function. Docosahexaenoic acid (DHA) is most abundant in Omega-3 (w-3) in the brain’s cell membranes.

Because the human body can’t synthesise this, we depend on dietary DHA found in oily fish. These include herring, salmon, anchovies, sardines and trout. Parents should include this in their child’s diet two/three times a week.

 

Diets and teen girls

The pressure to be the perfect pupil can be daunting. For some girls, this is compounded by the need to have the “perfect” body.

The result can be excessive dieting. And Chin warns of the several associated risks.

Bodies need enough nutrients to function at their best, but excessive dieting can mean the loss of essential nutrients for growth, an inadequate supply of energy, which could result in poor concentration and moodiness.

Chin highlights calcium and iron intake as areas of concern. She says statistics show that children and teenagers are not getting enough calcium in their diets.

“Dairy and meat products are often incorrectly perceived to be fattening, and it is common for weight-conscious teenage girls to cut these foods out of their diets,” says Chin.

Calcium is essential for overall health and bone development during the tween and teen years, says Chin.

A lack of iron will lead to difficulty concentrating for long periods and lead to tiredness. Iron is essential in making red blood cells, which transport oxygen around the body. Girls need more than boys, because of growth spurts and periods. Iron rich foods are lean red meat, poultry, fish, eggs, dark green leafy vegetables and legumes.

Another trend among young people is going vegetarian.

Chin advises parents to substitute meat with beans, lentils, split-peas and chickpeas to compensate for protein and omega 3 fatty acids. Nuts and seeds should be included, but in moderation due to its high fat content. While a meat-free diet is doable, Chin advises an option called pescetarianism, which allows for the inclusion of fish and shellfish to the diet.

 

Portions

We’ve all been told that portion control and eating in moderation is the key to a healthy diet. But what exactly does that mean for teens when snacking?

Chin says due to growth, development and high activity levels, it’s essential for children to snack. And despite how healthy the snacks are, they should still avoid overindulging.

Healthy snacks include fresh fruit, dried fruit, high-fibre muffins such as apple, oat and cinnamon, and banana, oat and pecan. Low-fat smoothies, biltong, air-popped popcorn, pretzels, multigrain nacho chips and wholegrain crackers are other good snacking options.

Chin says the weight of snacks will vary according to their energy density. For instance, a seed bar which is high in fat and weighs only 55g contains 1 242kJ, while an apple which weighs 150g can contains as little as 340 kJ. She adds a good guideline is to read the nutrition labels on the packaging and aim for less than 500kJ per portion.

Remember that kids over the age of two should be following adult guidelines regarding the type and amount of fats consumed.

 

Liquids

Getting enough sleep becomes ever more important during the exam period. The consumption of caffeine should be avoided. Chin recommends a calming drink before bed, like warm milk or camomile tea.

Products which include caffeine include coffee, hot chocolate, Milo, cocoa, cola and energy drinks.

 

Caffeine free drinks include water mixed with 100 percent fruit juice (half and half), rooibos tea or milk.

 

The ideal lunchbox

Carbohydrates are the main fuel and essential for active, growing kids. Whole grain starches keep them fuller for longer. Choose a fibre-rich option like seed bread or wholewheat pitas or crackers.

 

Fruit and vegetables should always be included.

Don’t forget to include a bottle of fluid, with water being the best option.

 

Working parents

Plan weekly menus ahead of time and cook extra as part of your family’s lunchbox. Plan lunch and breakfast the night before while busy with supper. It saves time and effort, and provides a healthy meal at hand when running out the door.

Keep emergency foods in your freezer, such as sliced low GI bread, wrapped muffins, frozen berries, and portioned leftovers.

Prepare easy to eat foods – boiled eggs, cooked chicken strips, turkey, lean roast beef – ahead of time.

Keep an emergency snack attack kit in the car – an old ice-cream container filled with snacks like crackers, cereal and seed bars, dried fruit, nuts and biltong. Fresh fruit needs to be added

 

MEAL IDEAS

Breakfast

Smoothie

Place the following ingredients in a food processor and blend:

1 cup of chopped mango or pineapple

1 ripe banana (freeze over-ripe banana’s and use for a colder and thicker option)

¼ cup of rolled oats

½ cup low fat milk

1 small handful of nuts

1-2 tsp honey

 

French Toastie

Omega 3 eggs

Honey and Oats loaf

Small bananas

Cinnamon

Honey

Beat 1 whole egg with 2 egg whites. Dip bread in the egg mixture and “dry fry” in a non-stick pan for 1–2 minutes a side. Add sliced banana, cinnamon and a drizzle of honey. Pack in a lunch box for an on-the-run breakfast.

 

On-the-Go options:

* Bran muffin and fruit (use ready mixes and bake over the weekend. Wrap fresh muffins in tin foil or zip lock bags and freeze. When you need them, remove from the freezer the night before).

* A low-fat yoghurt, fresh fruit and breakfast bar

 

Lunch

Pita Pockets

Mini pitas filled with tuna mixed with Tangy Light Reduced oil mayonnaise and a salad.

 

 

Ostrich Burgers

Ostrich burger patties

Omega 3 rolls (available at Woolworths)

Sweet chilli sauce

Slicing tomatoes

Grill patties under oven grill and add to an Omega 3 roll, spread with mashed avocado and sweet chilli sauce, top with sliced tomato and serve with a salad.

 

Pasta Salad

Leftover pasta mixed with Light Reduced oil mayonnaise, leftover roast chicken and roastedvegetables

Pasta (whole wheat or durum)

Light Reduced oil mayonnaise

Roast chicken (skin removed)

Roasting vegetables, ready toprepare

Tip: To decrease cooking time of roasting vegetables, microwave for 5 minutes on medium-high heat and then roast for 10-15 minutes

 

On-the-Go options:

* Ready-to-eat salads (containing protein).

* Ready-to-eat sandwiches.

* Ready-to-eat wraps.

* All ingredients are available at Woolworths, but you may improvise, using the healthiest options available. – Cape Argus

Source: http://www.iol.co.za/lifestyle/family/kids/healthy-exams-food-for-thought-1.1596983#.UmlcFhaZNyE