## Lesson 5: Taking Out the Trash

**Recycling Unit**

**Lesson 5: Taking out the Trash**

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**Objectives:**

Students will be able to analyze the solid waste that they generate over a period of time.

Students will be able to make graphs and analyze them.

Students will be able to predict the amount of waste produced the next week.

**GLCEs:**

**N.ME.05.09 **Understand percentages as parts out of 100, use % notation, and express a part of a whole as a percentage.

**D.AN.05.03 **Given a set of data, find and interpret the mean (using the concept of fair share)

and mode.

**D.AN.05.04 **Solve multi-step problems involving means.

**Materials**:

One week’s worth of trash

Gloves

Graph paper

**Procedure**:

*Teacher Lecture:*Introduce the concept of graphing waste over time. The teacher should have collected one week’s worth of trash for the activity.*Student Activity:*Students will divide into groups, each one taking a bag of garbage. The students will then sort the trash into recyclable and not recyclable materials.*Student Activity:*As a class, the students will record their data in a chart and then graph the results. As a group, the students will discuss ways in which they can decrease these numbers. One suggestion may be starting a recycle bin. Each student is then going to write a prediction of the amount of materials that will be found in the trash next week. This same process will be done on Friday of each week.*Teacher Lecture:*The teacher will present the students with information about waste generated in 2003. This is available in a pi chart in Project Learning Tree. The teacher will also share other facts about waste from 2003.

**Assessment**:

I will be able to student learning by the way they work in their groups and the predictions they make about waste.