Contemporary Science Issues: Lessons for Key Stage 4
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Lesson 4: Should we diet?
Teachers' notes
 
This lesson initially re-visits what constitutes a healthy, balanced diet and then details various weight-reducing diets that people follow.

The starter sets the scene. Two options are given; the web-clip is a cartoon which puts over the message that school dinners used to be junk-food – classes will enjoy it If internet is not available, teachers could bring in an excerpt from “Little Britain” (discretion advised as obese people are ridiculed).

After studying a range of diets students are asked to compare and contrast and make a decision about whether the diet is good or bad. There is a lot of scope for differentiation within this lesson and if computers are available groups can use PowerPoint to present their decisions.

A document is included with background information about ten diets, from which the students’ descriptions of diets are drawn. The diets referred to are:
 
The Atkins Diet

The Cabbage Soup Diet

The South Beach Diet The Mayo Clinic Diet
The Zone Diet The Mediterranean Diet
The Low-carb Diet The Diabetic Diet
The Negative calorie diet The Low GI Diet
 
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