Lesson 15
Addition and Subtraction Expressions within 5
Lesson Purpose
The purpose of this lesson is for students to develop fluency with adding and subtracting within 5.
Lesson Narrative
Students move around the room as they find the value of expressions. Students also compare totals and differences of expressions.
If students need additional support with the concepts in this lesson, refer back to Unit 4, Section C in the curriculum materials.
- Engagement
- MLR8
Learning Goals
Teacher Facing
- Add and subtract within 5.
Student Facing
- Let’s add and subtract within 5.
Required Materials
Materials to Gather
Required Preparation
Activity 1:
- Each student needs one card from the Expression Cards set used in a previous lesson.
- Label each corner of the classroom with a large number: 2, 3, 4, and 5.
Activity 2:
- Each group of 2 needs a set of Expression Cards from a previous lesson.
Activity 3:
- Gather materials from:
- 5-frames
- Roll and Add
- Bingo
- Geoblocks
- Find the Value of Expressions
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 10 min |
| Activity 2 | 15 min |
| Activity 3 | 15 min |
| Lesson Synthesis | 5 min |
| Cool-down | 5 min |
Teacher Reflection Questions
At what points during the lesson did you learn the most about your students’ thinking? What structures made those points most valuable in learning about your students? How will you use what you learned in tomorrow’s lesson?