# Lesson 10

Escribamos números de dos dígitos

### Lesson Purpose

The purpose of this lesson is for students to write numbers to represent different base-ten representations including base-ten diagrams, _____ tens _____ ones, and expressions that show the value of the tens and ones digits.

### Lesson Narrative

In previous lessons, students read two-digit numbers and interpreted and created representations of those numbers. In this lesson, students write two-digit numbers to match different base-ten representations. Students also learn a new center that provides practice counting and writing numbers up to 99.

• Engagement
• MLR8

### Learning Goals

Teacher Facing

• Write numbers to represent different base-ten representations.

### Student Facing

• Escribamos números de dos dígitos.

### Required Materials

Materials to Gather

Materials to Copy

• Write the Number Stage 1 Gameboard, Spanish

### Required Preparation

Activity 2:

• Put each gameboard in a sheet protector.

### Lesson Timeline

 Warm-up 10 min Activity 1 15 min Activity 2 20 min Lesson Synthesis 10 min Cool-down 5 min

### Teacher Reflection Questions

Reflect on how you can reinforce number writing outside of math class. When can you ask students to write two-digit numbers that represent quantities around them? What questions can you ask to help them see the tens and ones in these quantities?