Task 4.

Every day after lunch, 7 half-eaten pieces of white bread are left on the desks of the second-grade students. If these pieces are put together, they make up half a loaf of bread. How many loaves of bread will the second-grade students save in 20 days if they do not leave these pieces? How much money will the school save on this in 20 days and 60 days if a loaf of bread costs 35 rubles? (Answer)

Suggest two topics for extracurricular activities for this class that involve fostering concepts of economic actions and thrift among students. (Answer)
Solution: 1. 0.5 (1/2) * 20 = 10 (loaves); 10 * 35 = 350 rubles; 2. 0.5 (1/2) * 60 = 30 (loaves); 30 * 35 = 1050 rubles.

Themes for extracurricular activities: "Young Economist," "Bread is the Head of Everything," "Saving and Frugality in Our School Canteen," "Journey to the School of the Frugal," "Frugality - the Main Source of Wealth," etc.

## Criteria:

20 points - for the correct answer with justifications, correct calculations, and 2 proposed themes for extracurricular activities

15 points - correct answer with justifications, 1 proposed theme for an extracurricular activity or general thematic areas.

10 points - for the correct answer without justifications, with calculations and one proposed extracurricular activity.

5 points - for the correct answer, but with calculation errors and one proposed extracurricular activity

3 points - incorrect answer and calculation, 2 proposed extracurricular activities

2 points - incorrect answer and calculation, 1 proposed extracurricular activity.