Unit Plan 6 (Grade 1 Math): Count to 120 & Write Numbers

Focus: Count by 1s and 10s from any number; read and write numerals to 120 with attention to precision.

Grade Level: 1

Subject Area: Mathematics (Number & Operations in Base Ten)

Total Unit Duration: 5 sessions (one week), 45–60 minutes per session

I. Introduction

Students extend the number sequence beyond 100, practicing counting on and skip-counting by 10s from any starting number (e.g., 37, 47, 57, …). They build and analyze a 0–120 chart, use number lines, and produce neat, readable numerals. Emphasis is on place-value language (tens/ones) and MP.6 Precision.

Essential Questions

• How do I count on and skip-count by 10s from any number?
• How do tens and ones help me keep my place when counting and writing numerals?
• What does precision look like when I read and write numbers to 120?

II. Objectives and Standards

Learning Objectives — Students will be able to:

1. Count forward to 120 starting at any number; count back within 120 when supported.
2. Skip-count by 10s from any number (e.g., 26, 36, 46, …) and explain the pattern.
3. Read and write numerals to 120 with correct formation and spacing.
4. Use place-value language (tens, ones) and tools (120 chart, number line) to stay accurate.

Standards Alignment — CCSS Grade 1 (threaded across the unit)

• 1.NBT.1: Count to 120, starting at any number < 120; read and write numerals to 120.
• Mathematical Practices: MP.6 (Attend to precision) emphasized; MP.1–MP.2, MP.4, MP.7–MP.8 threaded.

Success Criteria — Student Language

• I can count on and by 10s from any number without losing my place.
• I can read and write numerals to 120 neatly and correctly.
• I can use tens and ones language and tools to keep my counting accurate.