This lesson is optional because it is an opportunity for extra practice that not all classes may need. In Activity 1, students learn stage 7 of the Five in a Row: Addition and Subtraction center. In this new stage, students add within 1,000 without composing. In Activity 2, students choose to continue working on Five in a Row, or choose between two previously introduced centers focused on place value in three-digit numbers.
- Add within 1,000.
- Sumemos números hasta 1,000.
Each group of 2 students needs 10 counters and 2 paper clips.
Gather materials from:
- Five in a Row: Addition and Subtraction, Stages 6–7
- Get Your Numbers in Order, Stage 2
- Mystery Number, Stage 2
- The Greatest of them All, Stage 2
|Activity 1||20 min|
|Activity 2||20 min|
|Lesson Synthesis||10 min|