Unit 1, Lesson 5
Sumemos hasta 50
Grado 2
Preparation
Lesson Purpose
The purpose of this lesson is for students to add within 50. Students find the value of sums within 50 in any way that makes sense to them.
Lesson Narrative
Students added within 100 in grade 1. This lesson serves as a formative assessment of how students find the value of sums with larger addends. Throughout the lesson, monitor for students who look for and make use of the structure of place value to add tens to tens and ones to ones (MP7).
Math CommunityTell students they will have a chance to revise their math community ideas at the end of this lesson. As they work today, they should think about norms that may be missing from the current list.
- Representation
- MLR8
- Explain (orally) strategies for adding within 50.
- Sumemos hasta 50.
Required Preparation
Activity 2
- Create connecting cubes in towers of 10 and singles.
Teacher Reflection Questions
In what ways is the math community you are working to foster going well? What actions can you take to continue to build community?
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