Unit Plan 8 (Grade K Math): Compare to 10

Focus: Compare groups and numerals within 1–10 using more, fewer/less, and same/equal; justify comparisons with drawings, objects, or ten-frames.

Grade Level: K

Subject Area: Mathematics (Counting & Cardinality)

Total Unit Duration: 5 sessions (one week), 30–40 minutes per session

I. Introduction

Students learn to compare two sets (up to 10) by matching objects (one-to-one correspondence) or by counting each set and using ten-frames. They also compare numerals (1–10) and explain why one number is more, fewer, or the same. Emphasis is on making and defending a simple claim with a model.

Essential Questions

• How can I tell which set has more, fewer, or the same number of objects?
• How do ten-frames and one-to-one matching help me compare to 10?
• How can I justify my comparison with a model or drawing?

II. Objectives and Standards

Learning Objectives — Students will be able to:

1. Compare two groups (≤10) using matching or counting and say more/fewer/same.
2. Represent both sets on ten-frames or with drawings to show which has more/fewer.
3. Compare two numerals (1–10) and state which is greater/less or equal in kindergarten language.
4. Explain their decision using evidence from their model (e.g., “My frame has two more”).

Standards Alignment — CCSS Kindergarten (threaded across the unit)

• K.CC.6 (to 10): Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group (by matching and/or counting).
• K.CC.7 (1–10): Compare two numbers between 1 and 10 presented as written numerals.
• Mathematical Practices: MP.2 (reason about quantities) emphasized; MP.6 (precision) and MP.5 (tools) threaded.

Success Criteria — Student Language

• I can say which set has more, fewer, or the same and show it.
• I can use a ten-frame or matching to prove my comparison.
• I can compare two numerals (1–10) and explain why.