Mathematics Department 2018/2019
Healthy Nutrition. Bollycao
Objective: In this activity, we will use percentages to calculate the fat, sugar, calories and other
nutrients associated with a snack called Bollycao. We will compare them with the
Recommended Daily Quantity in order to show the disadvantages of having this type of snacks
in our diet.
This is an activity for 12 and 13 year old students. The activity is designed for one or
two 55 min sessions, depending on the length of the introduction and the amount of
calculations required.
Concepts under development:
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Proportionality.
Percentages.
Healthy nutrition.
Critical thinking.
Procedure:
First, the teacher will make an introduction about healthy diet and its importance to prevent
diseases in the present and future. The teacher will also present some key factors about a healthy
lifestyle and will recommend the students to exercise, at least, 30 minutes a day.
Bollycao Ham sandwich Free fat ham sandwich Cheese sandwich
Weight (g) 60 84 84 84
Energy (kcal) 223 253 215 274
Fat (g) 8.4 11.49 7.32 13.89
Saturated fat (g) 2.28 2.94 1.47 5.96
Table 1. Comparison between different appetizers.
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