# Lesson 15

Resolvamos problemas usando diagramas de puntos

### Lesson Purpose

### Lesson Narrative

In this lesson, students use line plots to solve multi-step problems about the data presented in line plots. They add and subtract fractions and work together to solve problems about data using the Info Gap routine. The data for line plots can all be expressed using eighths, making the arithmetic accessible with the challenge being on partner communication to share the information needed to solve the problems. The second optional activity also uses data from a line plot and here students relate repeated addition of fractions to multiplication and estimate the sum of all of the data presented in the line plot.

- Representation

### Learning Goals

Teacher Facing

- Create line plots to display fractional measurement data, and use the information to solve problems.

### Student Facing

- Usemos un diagrama de puntos para resolver problemas.

### Required Materials

Materials to Copy

- Info Gap: Picking Fruit, 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 | 25 min |

Activity 2 | 10 min |

Lesson Synthesis | 10 min |

Cool-down | 5 min |

### Teacher Reflection Questions

### Suggested Centers

- Creating Line Plots (2–5), Stage 4: Eighth Inches, Add, Subtract, and Multiply (Addressing)
- Rectangle Rumble (3–5), Stage 4: Whole Number and Fraction Factors (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 |