Lesson 17
Usemos las cuatro operaciones para resolver problemas
Lesson Purpose
The purpose of this lesson is for students to solve two-step problems using all four operations.
Lesson Narrative
Previously, students have solved two-step problems involving addition, subtraction, and multiplication. Here they consider what mathematical questions could be asked about a situation and then solve two-step problems that include division where the factors are limited to single-digit numbers. Parentheses are revisited as a tool students can use to specify which operation happens first in the equation so that it matches the situation they are representing.
- Engagement
- MLR5
Learning Goals
Teacher Facing
- Represent two-step word problems using equations with a letter standing for the unknown quantity.
- Solve two-step word problems using the four operations.
Student Facing
- Usemos las cuatro operaciones para resolver problemas.
Required Materials
Required Preparation
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
How has your students’ understanding of two-step word problems evolved from previous lessons? How have their experiences with multiplication and division in this unit influenced their problem solving strategies?
Suggested Centers
- Compare (1–5), Stage 3: Multiply within 100 (Addressing)
- How Close? (1–5), Stage 5: Multiply to 100 (Addressing)
Print Formatted Materials
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| Student Task Statements | docx | |
| Lesson Cover Page | docx | |
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| Teacher Guide | Log In | |
| Teacher Presentation Materials | docx | |
| Blackline Masters | zip |