# Lesson 12

Representemos problemas en la cuadrícula de coordenadas

### Lesson Purpose

The purpose of this lesson is for students to represent situations by plotting and interpreting points on the coordinate grid.

### Lesson Narrative

The purpose of this lesson is to use the coordinate grid to represent real world data. Students work with coins in two different ways. In the first activity, they flip the coin 10 times and plot the number of heads and number of tails they get. Students plot their results on the coordinate grid and also interpret points in terms of coin flipping. In the second activity, students consider the number of coins and their total value. Again the focus is on plotting and interpreting points representing different sets of coins (MP2).

- Engagement

### Learning Goals

Teacher Facing

- Represent real world and mathematical problems by graphing points in the first quadrant of the coordinate grid, and interpret coordinate values of points in the context of the situation.

### Student Facing

- Representemos problemas en la cuadrícula de coordenadas.

### Required Materials

Materials to Gather

### Required Preparation

Activity 1:

- Gather pennies, nickels, dimes, and quarters to show students during the launch.

### Lesson Timeline

Warm-up | 10 min |

Activity 1 | 15 min |

Activity 2 | 15 min |

Lesson Synthesis | 10 min |

Cool-down | 5 min |

### Teacher Reflection Questions

With only one lesson remaining in the unit, where do you see evidence of growth in each of your students’ understandings? For students about whom you are not sure, make a note and find out more about their thinking tomorrow.

### Suggested Centers

- Can You Draw It? (1–5), Stage 7: Grade 5 Shapes (Addressing)
- Picture Books (K–5), Stage 3: Find Shapes (Addressing)