Lesson 12

Día 2 de centros (optional)

Lesson Purpose

The purpose of this lesson is for students to practice organizing data and using graphs to represent it. Students also practice adding and subtracting within 10, 20, or 50.

Lesson Narrative

This lesson is optional because it is an opportunity for extra practice that not all classes may need. In Activity 1, students learn stage 2 of the Sort and Display center, which was first introduced in grade 1. In this new stage, called Picture or Bar Graphs, students sort 20–30 objects into 3 categories and make a picture or bar graph that shows how they sorted. In Activity 2, students choose between two previously introduced centers focused addition and subtraction.

Learning Goals

Teacher Facing

• Practice adding and subtracting within 10 or 20.
• Represent data using picture and bar graphs.

Student Facing

• Clasifiquemos una colección y hagamos gráficas para representarla.

Required Materials

Materials to Gather

Materials to Copy

• Sort and Display Stage 2 Recording Sheet, Spanish

Required Preparation

Activity 1:

Each group of 2 needs a collection of 20–30 objects that could be sorted into at least 3 categories. Examples: pattern blocks, cubes, sets of books, or a combination of blocks, cubes, and counters.

Activity 2:

Gather materials from :

• What's Behind My Back, Stages 2 and 3
• How Close, Stages 13
• Number Puzzles, Stages 1 and 2

Lesson Timeline

 Warm-up 10 min Activity 1 20 min Activity 2 20 min Lesson Synthesis 10 min

Teacher Reflection Questions

Reflect on how comfortable your students are asking questions of you and of each other. What can you do to encourage students to ask questions?