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Life orientation

Grade 7

A healthy lifestyle

Module 1

Personal eating habits and diet

Ways in which personal eating habits and diet can be improved.

The following factors influence the nutritional value of the food that we eat:

  • Manner in which it is prepared: rinsing, washing of hands.
  • Cooking method: deep frying, steaming.
  • Additives: colorants, flavourants.
  • Insecticides: snail bait, pest control.
  • Refining of products: refined flour, brown rice.
  • Food storage, preservatives: long life milk, food irradiation.
  • Manipulation of meat and milk products: growth hormones, free-range eggs.

Activity 1:

To discuss key words

[lo 1.1]

Group assignment

Each of the points contains one or more key words. Each group discusses what the specific point means to them. Have a brainstorming session and write down at least 10 key words that describe each point. Sketches can also be used instead of words. Remember that key words could imply good or bad practices. Indicate “good” or “bad” by making a tick or a cross in colour next to the word(s). At the end of the discussion the groups must give feedback to the rest of the learners.

Finally, the class as a whole discusses all the negative influences identified by the group.

Activity 2:

To read a text and answer the subsequent questions

[lo 1.1]

Individual assignment

Read the following information and then carry out the instructions:

Take five for health!

In the hustle and bustle of modern-day life we are often too busy to prepare and enjoy a nutritious meal. In addition, the media, and sometimes even our friends, confuse us by propagating contradictory information about healthy eating habits. How on earth must we know what to eat and what to avoid?

Stress, caffeine, smoking, eating on the run, and dependence on fast foods are just some of the factors that we have to take into consideration if we want to follow a healthier lifestyle and eat what is really good for us. It has been scientifically proven that specific nutrients, vitamins and minerals are essential in protecting us against the so-called “lifestyle diseases” such as coronary disease and cancer.

Fruit is an excellent source of essential nutrients. Fruit is low in calories and fat, and contains both soluble and insoluble fibre that can counteract many kinds of gastric problems such as constipation and cramps. Five portions of fruit per day would form the basis of a healthy diet programme. But remember: depending on certain conditions, people’s dietary needs may differ. Diabetes, for instance, is a very significant determining factor in our choice of foodstuffs. Before embarking on a strict diet, one should consult a doctor or clinic sister.

Here are a few hints to consider in following the “take five” eating pattern:

  • Eating a fruit on the run is an alternative if there isn’t any time to sit down to a leisurely meal.
  • Spoil yourself with a fruit shake. Blend soft fruits such as bananas or peaches with low fat milk or yoghurt.
  • Satisfy your “sweet tooth” with fruit instead of dessert.
  • Pancakes with fruit fillings are deliciously different for a party.
  • Chopped fresh or dried fruit is a tasty addition to a mixed fresh salad.
  • If you make those mouth-watering “spoiling mom” fritters, substitute half of the oil with apple juice, and add half a cup of grated apples to the batter.

1. Make a list of five of your favourite fruits.

2. Write down at least three more “fruit hints”.

Activity 3:

To complete a quiz

[lo 1.1]

Another individual assignment

Not all fun foods are bad for you. One can feast on popcorn without feeling guilty. Popcorn, corn on the cob and mealie-meal are the maize products that South Africans consume most. Fortunately, they contain many nutrients.

Now do the popcorn quiz.(This quiz has been taken from the magazine Longevity , September 2000.)

Answer true or false :

1. Maize (corn, or a mealie) is a vegetable.

2. By eating maize and maize products you can protect your eyesight.

3. Popcorn is just as good for you as corn on the cob.

4. Yellow maize contains just as much carotene as white maize.

5. Maize oil is not a healthy choice in food preparation.

6. Sweetener made from maize products has more nutrient value than sugar.

Answers to the quiz:

1. False. Maize is a cereal.

2. True. Yellow maize is a rich source of carotene, lutene and zeaxantene that promote good eyesight, and counteract the growth of eye cataracts.

3. True. Popcorn (without butter and salt) is an excellent low-calorie snack. Pre-packed microwave popcorn or popcorn you buy at the movies is not as low in calories, and not as healthy, because they contain vegetable oil and sodium.

4. True. Half a cup of yellow maize contains about 200 IU units of beta-carotene, and white maize none.

5. False. Maize oil is excellent for food preparation and also as a salad dressing. Just like vegetable oils, it is also low in saturated fats.

6. False. Maize syrup, which is often used in cool drinks and processed foods, has no more nutritional value than sugar.

Assessment

Learning outcomes(LOs)
LO 1
HEALTH PROMOTIONThe learner will be able to make informed decisions regarding personal, community and environmental health.
Assessment standards(ASs)
We know this when the learner:
1.1 proposes ways to improve the nutritional value of own personal diet;
1.2 evaluates actions to address an environmental health problem;
1.3 describes strategies for living with diseases, including HIV/AIDS;
1.4 discusses the personal feelings, community norms, values and social pressures associated with sexuality.

Questions & Answers

so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Life orientation grade 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11029/1.1
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