Lesson 15

Explain How You Counted

Lesson Purpose

The purpose of this lesson is for students to count collections of objects. The focus is for students to show and explain how they counted to a partner. 

Lesson Narrative

In the Questions About Us routine, students brainstorm different ways to represent how many students are at school today. Students then count objects in different collections in a way that makes sense to them and share how they counted the collection with a partner. The second activity is an optional activity that provides support in matching each object with one number.

  • Representation
  • MLR8

Learning Goals

Teacher Facing

  • Count collections of objects.
  • Explain how they counted to a partner.

Student Facing

  • Let’s count collections of objects and tell our partners how we counted.

Required Preparation

Activity 3:

  • Gather materials from:
    • Connecting Cubes, Stages 1, 2, and 3
    • Pattern Blocks, Stages 1, 2, and 3
    • Geoblocks, Stages 1 and 2
    • Picture Books, Stages 1 and 2

CCSS Standards


Building Towards

Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 10 min
Activity 3 20 min
Lesson Synthesis 5 min
Cool-down 0 min

Teacher Reflection Questions

Who got to do math today in class and how do you know? Identify the norms or routines that allowed those students to engage in mathematics. How can you adjust these norms and routines so all students do math tomorrow?

Print Formatted Materials

Teachers with a valid work email address can click here to register or sign in for free access to Cool Down, Teacher Guide, and PowerPoint materials.

Student Task Statements pdf docx
Lesson Cover Page pdf docx
Teacher Guide Log In
Teacher Presentation Materials pdf docx

Additional Resources

Google Slides Log In
PowerPoint Slides Log In