Lesson 14
Día 2 de centros (optional)
Lesson Purpose
The purpose of this lesson is for students to practice adding and subtracting within 100 and representing addition and subtraction on the number line.
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 1 of the Jump the Line center. In this new center, students take turns making strategic choices about numbers to add or subtract to reach target numbers. In Activity 2, students choose to continue working on Jump the Line, or choose between two previously introduced centers focused on addition and subtraction.
Learning Goals
Teacher Facing
- Practice addition and subtraction within 100.
- Represent addition and subtraction on the number line.
Student Facing
- Practiquemos la suma, la resta y el uso de la recta numérica.
Required Materials
Materials to Gather
Materials to Copy
- Jump the Line Stage 1 Spinners
- Jump the Line Stage 1 Gameboard, Spanish
Required Preparation
Activity 2:
Gather materials from:
- Jump The Line, Stage 1
- Number Line Scoot, Stage 1
- How Close, Stage 3
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 20 min |
| Activity 2 | 20 min |
| Lesson Synthesis | 10 min |
Teacher Reflection Questions
Think about times when students were able to make connections to and build on the ideas of their peers during discussions in this unit. What norms or routines allowed students to engage with other students’ ideas respectfully?