Lesson 17
Situaciones de multiplicación y de división de fracciones
Lesson Purpose
The purpose of this lesson is for students to solve multiplication and division problems with fractions with an emphasis on making sense of the problems and the operation needed to solve them.
Lesson Narrative
Earlier in this unit students learned how to multiply and how to divide a whole number by a unit fraction or a unit fraction by a whole number. In this lesson, they solve a variety of problems some of which encourage representing and solving with a specific operation.
- Engagement
Activity 1: Falta de información: Baldosas
Learning Goals
Teacher Facing
- Solve problems involving multiplication and division with fractions.
Student Facing
- Resolvamos problemas en los que se multiplican y se dividen fracciones.
Required Materials
Materials to Copy
- Info Gap: Tiles, Spanish
Required Preparation
Activity 1:
- Create a set of cards from the blackline master for each group of 2.
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 20 min |
| Activity 2 | 15 min |
| Lesson Synthesis | 10 min |
| Cool-down | 5 min |
Teacher Reflection Questions
Think about a recent time from class when your students were confused. What did you do to support them in reasoning about their confusion together as a community of learners?
Suggested Centers
- Compare (1–5), Stage 8: Divide Fractions and Whole Numbers (Addressing)
- Rolling for Fractions (3–5), Stage 5: Divide Unit Fractions and Whole Numbers (Addressing)
- How Close? (1–5), Stage 6: Multiply to 3,000 (Supporting)
Print Formatted Materials
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| Student Task Statements | docx | |
| Lesson Cover Page | docx | |
| Cool Down | Log In | |
| Teacher Guide | Log In | |
| Teacher Presentation Materials | docx | |
| Blackline Masters | zip |