# Lesson 14

Situaciones de área

### Lesson Purpose

### Lesson Narrative

In previous lessons, students used a range of skills to solve problems involving the multiplication of a whole number by a fraction. They represented situations with diagrams and expressions, and they solved problems using a variety of strategies.

In this lesson, students use their conceptual understanding to build procedural fluency with multiplication of whole numbers by fractions. Students also apply these skills to solve problems in an Info Gap activity. Students use what they know about interpreting multiplication as area to ask questions of their peers about the missing information in the problems and explain their reasoning for needing that information.

As in the previous lessons, students will encounter problems with fractions greater than 1. Students are encouraged to rewrite fractions greater than 1 as whole numbers when possible. They are not required to rewrite fractions greater than 1 as mixed numbers.

- Representation

### Learning Goals

Teacher Facing

- Solve problems involving the multiplication of a whole number by a fraction, including fractions greater than 1.

### Student Facing

- Apliquemos lo que hemos aprendido sobre multiplicación de fracciones.

### Required Materials

Materials to Copy

- Info Gap: Area, 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

### Suggested Centers

- Rectangle Rumble (3–5), Stage 4: Whole Number and Fraction Factors (Addressing)
- Rectangle Rumble (3–5), Stage 3: Factors 1–10 (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 |