Unit 2, Lesson 2
Count and Arrange
Kindergarten
Preparation
Lesson Purpose
The purpose of this lesson is for students to count objects and notice that changing the arrangement of a group of objects does not change the number of objects.
Lesson Narrative
Students count the same group of objects in different arrangements several times throughout the lesson. It is important that students repeatedly experience counting the same group of objects in different arrangements to learn that the arrangement does not affect the quantity. This understanding develops over time and it is not necessary for all students to articulate at the end of this lesson. Students may continue to recount the same group of objects that have been rearranged until they are confident that the quantity remains the same. This concept will be revisited in future lessons and units.
- Action and Expression
- MLR8
- Determine the number of objects in a group each time it is arranged in different ways.
- Explain (orally) strategies for determining the number of objects in a collection.
- Let’s figure out how many objects we have.
Required Materials
Activity 1
Activity 2
Activity 3
Required Preparation
Activity 2
- Each group of 2 needs 10 two-color counters and 1 cup.
Activity 3
- Gather materials from:
- Shake and Spill, Stage 1
- Math Fingers, Stage 1
- Pattern Blocks, Stages 1‒3
- Picture Books, Stages 1 and 2
Suggested Centers
NoneTeacher Reflection Questions
What was the best question you asked students today? Why would you consider it the best based on what students said or did?
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