Unit 5, Lesson 7
Center Day 1 (Optional)
Grade 2
Preparation
Lesson Narrative
This lesson is optional because it is an opportunity for extra practice that not all classes may need. In the first activity, students learn Stage 2 of the Mystery Number center, which was first introduced in grade 1. In this new stage, called Three-Digit Numbers, they use clues based on place value to identify the number being described. In the second activity, students choose to continue working on Mystery Number, or choose between two previously introduced centers focused on addition and subtraction.
- Describe (orally) and identify three-digit numbers using clues based on place value.
- Let’s use place value to identify numbers and practice adding and subtracting.
Required Materials
Activity 2
Required Preparation
Gather materials from:
- Jump the Line, Stage 1
- Mystery Number, Stage 2
- Number Puzzles, Stages 2–4
Suggested Centers
NoneTeacher 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?