Unit 4, Lesson 7
Numbers with Tens and Ones
Grade 1
Preparation
Lesson Narrative
In the previous lesson, students considered different ways to organize, count, and represent a collection of 52 objects.
In this lesson, students generalize the base-ten structure to all two-digit numbers. They read these numbers and consider how they are made up of tens and ones. Students don’t need to write two-digit numbers because they will do so in a later lesson.
- Action and Expression
- MLR8
- Create two-digit numbers and represent them with connecting cubes, base-ten diagrams, and as a number of tens and ones.
- Generalize (orally) that the digit on the left of a “two-digit number” represents the number of tens and the digit on the right represents the number of ones.
- Let’s learn more about tens and ones.
Required Materials
Activity 3
Required Preparation
- Create a poster with the number 6 in the tens place and a sticky note to the right of the 6 for the Lesson Synthesis.
- Gather materials from previous centers:
- Counting Collections, Stages 1 and 2
- Shake and Spill, Stages 3–5
- How Close, Stages 1 and 2
- Check It Off, Stages 1–3
Suggested Centers
NoneTeacher Reflection Questions
What opportunities are you giving students to reflect on their understanding of the mathematical content?