# 2nd Grade Equivalent Sets Lesson Plan

## Topic: Equivalent sets

### Objectives & Outcomes

• Students will be able to identify sets with equivalent members.

### Materials

• Set cards (such as {boots, socks, shoes, sandals} or {red circle, blue square, yellow triangle, green pentagon}
• Marker or pen
• Whiteboard or chalkboard

### Warm-up

• Review the concept of sets and give some examples such as {boots, socks, shoes, sandals} or {red circle, blue square, yellow triangle, green pentagon}.
• Ask students if they can think of any sets they are familiar with, and write their suggestions on the whiteboard.

### Direct Instruction

• Introduce the concept of equivalent sets, explaining that two sets are equivalent if they have the same elements but may be arranged in different ways.
• Use the examples from the warm-up to demonstrate how two sets can be equivalent even though they may look different. For example, {boots, socks, shoes, sandals} and {socks, shoes, sandals, boots} are equivalent sets because they both have the same elements, but they are arranged differently.
• Ask students to think of some more examples of equivalent sets, and write their suggestions on the whiteboard.

### Guided Practice

• Have students work in small groups to identify which sets are equivalent in the following examples. Encourage them to explain their reasoning and to test their hypothesis by rearranging the elements.
• Provide feedback to the class on the examples they have worked on, asking questions such as "Why are these sets equivalent? How did you know?"

### Independent Practice

• Project-based activity: Have students work in small groups to create their own equivalent sets. They can use the same process as in the guided practice activity to identify equivalent sets and to test their hypothesis by rearranging the elements. Encourage them to be creative and to use their problem solving skills to come up with interesting sets to create.

### Closure:

• Review the concept of equivalent sets and the process for creating and testing hypothesis.
• Ask students to share their equivalent sets with the class and discuss any interesting or unusual choices they made.