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Dietary requirements of adolescents

In Stage 4 PDHPE, students explore the dietary habits of young people in relation to the recommended dietary guidelines for children and adolescents. In this activity students will be required to compare their own dietary habits, recorded in a pie graph, with the Australian Guide to Healthy Eating published by the Australian Government Department for Health and Ageing.

• Instruct students to record their food intake for a 24 hour period during the week.
• Explore the Australian Guide to Healthy Eating at Australian Government Department for Health and Ageing website.
• Create a table that outlines the main categories of foods included in the Australian Guide to Healthy Eating and the types of foods that fit into each category. For example, one of the categories is meat, fish, poultry, eggs, nuts, legumes. This group is made up of foods such as beef, lamb, veal, chicken, fish, tuna, peanut pastes, cashews, sunflower seeds and sesame seeds.
• Construct a pie graph from the columns in the table headed My dietary intake and My number of serves. The following steps should be modeled for students:

1. Add up the total number of serves consumed.
2. Divide 360 degrees by the total number of serves. This will give you the size of the angle that will be represented by each serve in the pie graph.
3. Ask students to draw a circle and construct a radius line from the centre to the outside of the circle. This is the line that the first angle will be measured from.
4. Calculate the size of the angle for each slice of the pie graph by multiplying the angle found in step 2 by the number of serves for each food category.
5. Measure out each of the slices for the pie using a protractor and label each of the categories.

• Compare the completed pie graph with the pie graph represented in the Australian Guide to Healthy Eating.
• Ask students to examine how their dietary intake compares to the recommendations of the Australian Guide to Healthy Eating.
• Ask students to suggest ways they could improve their diet or add variety to their diet, based on what they have learnt about the Australian Guide to Healthy Eating.

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