Lesson 11

Center Day 2 (optional)

Lesson Purpose

The purpose of this lesson is for students to practice adding numbers within 1,000.

Lesson Narrative

This lesson is optional because it is an opportunity for extra practice that not all classes may need. In Activity 1, students learn stage 4 of the How Close center. In this new stage, called Add to 1,000, students pick 8 digit cards and then choose 6 of those to make an expression that yields a number as close as possible to the target number, 1,000. In Activity 2, students learn stage 8 of the Five in a Row center, Add within 1,000 with Composing, and then choose to continue working on Five in a Row, or choose between two previously introduced centers focused on addition with three-digit numbers. 

Learning Goals

Teacher Facing

  • Add numbers within 1,000.

Student Facing

  • Let’s add numbers within 1,000.

Required Materials

Materials to Gather

Materials to Copy

  • Five in a Row Addition and Subtraction Stage 8 Gameboard
  • How Close? Stage 4 Recording Sheet

Required Preparation

Activity 2:

  • Each group of 2 needs 10 counters and 2 paper clips.
  • Gather materials from:
    • Five in a Row, Stages 7–8
    • How Close, Stage 4

CCSS Standards


Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 25 min
Lesson Synthesis 10 min

Teacher Reflection Questions

When do your students feel successful in math? How do you know?

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