Purpose of the Lesson Plan: We call it zero waste, we make (Collecting Machine ) “TOTALS” with waste bottles. We have fun and learn by collecting in Stem Discovery Week.

ENGAGE: The Collector Machine, designed using waste bottles, was built to raise awareness among students about preventing global warming and reducing the use of plastic. In addition, we realized our engineering design by contributing to the mental development of students with concrete operations in mathematics. During the Stem discovery week, they learned the gathering process by having fun

The teacher shows a card with a plus (+) sign to the children and asks about the meaning of this sign. After the answers of the children, it is explained that the sign is a plus sign and it is used in incrementing operations. (The plus sign is used in addition in mathematics. Addition means the increase of numbers and objects.