Living Mathematics and Science to the Full

Archive for February, 2013

Let’s Celebrate the Life of Amaani


All who knew Amaani knows that she lived life to the full. The girl I knew was first to class, and an eager learner. I saw her partaking in all activities, and never holding herself back. Her vigour knew no bounds. She showed us each moment is precious and that that we should engage in all activities now, as tomorrow may be too late. As we mourn her passing, let’s all remember her the way she was – a shining example to us all.

Cornell method of note taking


Note taking should be organised, neat and help you listen. I use the Cornell method, perhaps you can also.

D ivide the paper into three sections.
  • Draw a dark horizontal line about 5 or 6 lines from the bottom. Use a heavy marker to draw the line so that it is clear.
  • Draw a dark vertical line about 6 to 10 cm from the left side of the paper from the top to the horizontal line.
A piece of paper divided into sections

D
 
ocument
  • Write subject name, date, and topic at the top of each page.

A sectioned piece of paper indicating where to place the course, your name, and date.

rite notes.
  • The large box to the right is for writing notes.
  • Skip a line between ideas and topics.
  • Don’t use complete sentences. Use abbreviations, whenever possible. Develop a shorthand of your own, such as using “&” for the word“and”.

A page showing the key points and the notes in the middle sections of the page.

R eview and clarify.

  • Review the notes as soon as possible after class.
  • Pull out main ideas, key points, dates, and people, and write these in the left column.

Review and clarify then pull out the main ideas.

ummarize.

  • Write a summary of the main ideas in the bottom section.

Indicating where to write the summary on the page.

S tudy your notes.

  • Re-read your notes in the right column.
  • Spend most of your time studying the ideas in the left column and the summary at the bottom. These are the most important ideas and will probably include most of the information that you will be tested on.
  • Remember to make a study note!

An A+ paper.

Fast Food linked to Asthma


Children who eat fast food three or more times a week have a higher chance of developing asthma, eczema or hay fever, a New Zealand-led study has found.

Eating fresh fruit, in contrast, can act as a protective factor against these allergy-based conditions.

The study, published in the Thorax journal, surveyed more than 400 000 children from 51 countries.

It found that teenagers who ate fast food three or more times a week had a 39 percent increased risk of severe asthma, while primary school-aged children had a 27 percent higher risk.

However, eating three or more servings of fruit a week could cut the chance of severe asthma, eczema and hay fever by between 11 and 14 percent across the age groups.

The University of Auckland’s Professor Innes Asher, who led the study, said parents should sit up and take notice of the findings.

“These results are quite concerning, because fast food outlets are on the rise,” Asher said. “The bottom line is that people should be careful about the amount of fast food they eat.”

Though the exact reason why consumption of fast food is linked to these conditions is unknown, Asher cites factors such as high levels of trans- and saturated- fatty acids as possible contenders. These fats are known to affect immunity, which could in turn lead to allergy-related conditions.

Eating fresh fruit provides protection against these conditions because it contains beneficial antioxidants, she said.

The study indicates an association between the factors, rather than establishing a causal link. – New Zealand Herald

Fats and Oils Questions


1)Name 7 reasons why I should eat oils and fats as part of my diet. (7 marks)
2)Which oils and fats should I eat? (1 mark)
3)Why should I eat the oils and fats indicated in question 2? (1 mark)
4)Which oils and fats should I avoid eating? (2 marks)
5)Why should I avoid eat the oils and fats indicated in question 4? (1 mark)
6)Where in our bodies do we need fat? (2 marks)

IMSO selection test 1 Dates 2013


6C – Wednesday 6 February 2013

6R – Wednesday 6 February 2013

6A – Wednesday 6 February 2013

6W – Thursday 7 February 2013

 

7C – Friday 8 February 2013

7R –  – Friday 8 February 2013

7A – Friday 8 February 2013

7W – Friday 8 February 2013

Eating for Energy


Are you feeling tired all the time? And are you already wondering how you’re going to get through the year, even though it’s only the end of January?

Everyone feels exhausted and overwhelmed at times. However, when you are starting to feel run-down all the time and it is starting to interfere with your daily activities, you should stop and re-evaluate your lifestyle. Are you eating healthily? Are you getting enough sleep and exercise? Or could it be something more serious? 

Chronic fatigue is an underlying symptom for a number of medical conditions such as anaemia (iron-deficiency), food allergies, diabetes, depression, thyroid and heart problems. If you’ve been feeling fatigued for more than a month, it is recommended that you visit your doctor for a thorough medical examination.

For many people, though, an unhealthy diet is one of the main reasons for their constant tiredness. We so easily forget that what we put (or don’t put!) into our bodies can affect our energy levels immensely.

  • It is important to eat a balanced diet that consists of three daily meals and a healthy snack mid-morning and mid-afternoon. You can also opt to divide your daily food into five mini-meals instead. Eating regularly helps to keep your blood sugar levels stable, which in turn helps to keep your energy and concentration levels stable.
  • Energise your body with an abundance of nutrient-rich fruits and vegetables and opt for wholegrains (such as brown bread, brown rice, oats, quinoa and rye), low-fat or fat-free dairy and lean proteins (such as lean beef, fish, chicken, turkey, eggs, beans, lentils and tofu). Minimise your intake of fat, sugar and salt.
  • Avoid refined starches such as white bread, cakes, pastries, pies, doughnuts, fast foods and deep-fried foods as these foods are low in nutrients and high in kilojoules. These foods may give you a quick surge of energy as they are metabolised immediately, but soon after your blood sugar levels will crash, making you feel even more run-down. If you are feeling peckish, rather snack on fruit, veggie sticks, seeds, nuts and unsalted popcorn.
  • If you are on a very strict diet to lose weight and starving yourself in the process, you are not only sapping your energy levels but also slowing down your metabolism. If your body is not getting enough food, it starts preparing itself for a famine by slowing down your metabolism and holding onto all the fat you have. So, rather opt for a more balanced diet with moderate portions of healthy food and combine it with regular exercise; and you will slowly see the kilos melt away.
  • Avoid reaching for caffeine, alcohol and nicotine in times of stress. Though they may give you a temporary boost, they make you feel even more tired in the end as they can dehydrate the body, interfere with sleep, overstimulate the nervous system and play havoc with your blood sugar levels.

Are you drinking enough water? A dehydrated body is a fatigued body. Make sure you stay hydrated by drinking six to eight glasses of fluid a day, preferably water. Your body needs sufficient water to function well – among others, it promotes good blood circulation and energises the brain. If you have a headache and are feeling tired, reach for a glass of water first, you may be dehydrated.

Source: health24.co.za