Lesson 20

Un paseo al zoológico

Lesson Purpose

The purpose of this lesson is for students to solve story problems with three addends.

Lesson Narrative

In this lesson, students solve story problems that call for addition of three numbers. Students solve the problems in any way that makes sense to them. Students may work flexibly with different methods based on the numbers they are adding.

  • Action and Expression
  • MLR6

Learning Goals

Teacher Facing

  • Solve story problems with three addends.

Student Facing

  • Resolvamos problemas-historia.

Required Materials

Required Preparation

CCSS Standards


Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 20 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

What student thinking was made visible through representations and discussion today? What thinking was still invisible? How might you make that thinking visible in future lessons?

Print Formatted Materials

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Student Task Statements pdf docx
Lesson Cover Page pdf docx
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Teacher Presentation Materials pdf docx