# Lesson 2

Más fichas o menos fichas

### Lesson Purpose

The purpose of this lesson is for students to compare groups of up to 10 objects in the context of putting together pattern blocks.

### Lesson Narrative

In previous lessons, students put together and counted pattern blocks to fill in puzzles. Students have noticed that different combinations of pattern blocks can be used to create the same shape. Students use methods developed in previous units to compare the number of pattern blocks.
• Representation
• MLR8

### Learning Goals

Teacher Facing

• Compare the number of objects in groups of up to 10 shapes.

### Student Facing

• Descifremos si hay más fichas en forma de triángulo o más fichas en forma de trapecio.

### Required Materials

Materials to Gather

Materials to Copy

• Make a Y, Spanish
• Quack Quack, Spanish
• Pattern Blocks Stage 6 Mat

### Required Preparation

Activity 1:

•  To display during the activity synthesis, create:
• a shape with 6 green triangle pattern blocks and 2 red trapezoid pattern blocks.
• a shape with 6 blue rhombus pattern blocks and 7 red trapezoid pattern blocks.

Activity 3:

• Gather materials from:
• Geoblocks, Stages 1 and 2
• Grab and Count, Stage 1
• Find the Pair, Stages 1 and 2

### Lesson Timeline

 Warm-up 10 min Activity 1 10 min Activity 2 15 min Activity 3 15 min Lesson Synthesis 5 min Cool-down 5 min

### Teacher Reflection Questions

When do your students feel successful in math? How do you know?