Lesson 14
Center Day 3
Lesson Purpose
The purpose of this lesson is for students to practice working with data and adding and subtracting within 10.
Lesson Narrative
Students learn a new center called Sort and Display. In this center, students sort 10–20 objects into two or three categories and then show how they sorted. They show their representation to a partner and ask questions that can be answered about their collection of objects. Students then choose from other center activities introduced in a previous section. This lesson provides the opportunity to formatively assess how students add and subtract within 10.
Learning Goals
Teacher Facing
- Build toward fluency by adding and subtracting within 10 in a way that makes sense to them.
- Sort objects into categories and represent the sort.
Student Facing
- Let’s work with data and practice adding and subtracting.
Required Materials
Materials to Gather
Materials to Copy
- Sort and Display Stage 1 Recording Sheet
Required Preparation
Activity 1:
- Make collections of 10–20 objects with up to three attributes by which to sort for each group.
Activity 2:
- Gather materials from previous centers:
- What’s Behind My Back, Stage 2
- Number Race, Stage 3
- Check it Off, Stages 1 and 2
- Five in a Row: Addition and Subtraction, Stages 1 and 2
- Find the Pair, Stage 2
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 20 min |
| Activity 2 | 20 min |
| Lesson Synthesis | 10 min |
Teacher Reflection Questions
How effective were your questions in supporting students’ thinking today? What did students say or do that showed they were effective?