Lesson 11

The purpose of this lesson is for students to develop and practice one-to-one correspondence as they make groups with enough objects.

In a previous lesson, students answered “are there enough” questions, which encouraged them to carefully match one object to one person. In this lesson, students continue to develop one-to-one correspondence as they work together to get enough pencils for each student. As students notice that when you get enough of an object for each student to have one, the number of students and the number of objects are the same, they look for and express regularity in repeated reasoning (MP8).

In the lesson synthesis, students practice saying the verbal count sequence to 10 in preparation for counting objects in an upcoming section. Add variety to the counting by adding movement. For example, students can count as they clap, stomp their feet, or jump.

• Each group of 4 needs at least 8 pencils.

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

In a future unit, students will compare groups of objects and images. What do you notice in their work from today’s lesson that you might leverage in that future lesson?