Unit Plan 34 (Grade K Math): Sort–Count–Compare (Data Project)
Sort objects by one attribute, count each category, and compare using more, fewer, or same; record results with simple charts and justify comparisons with clear math language.
Focus: Plan and conduct a class sort, record category counts, and make comparison statements using counting and place-based language.
Grade Level: K
Subject Area: Mathematics (Measurement & Data • Counting & Cardinality)
Total Unit Duration: 5 sessions (one week), 30–40 minutes per session
I. Introduction
Students classify a mixed set of objects by a chosen attribute, then count how many are in each category and compare the results. They practice stating which category has more, fewer, or the same number and justify with counts, 5-frames, or simple charts.
Essential Questions
- How does choosing an attribute help us sort a collection?
- How do we count and record how many are in each category?
- How can we compare categories and explain which has more, fewer, or the same?
II. Objectives and Standards
Learning Objectives — Students will be able to:
- Sort objects into categories based on a visible attribute (color, size, shape, type).
- Count each category accurately and record totals (tallies/5-frames/simple tables).
- Make comparison statements (more/fewer/same) and, when appropriate, use >, <, =.
- Explain sorting choices and comparisons using clear math language and evidence.
Standards Alignment — CCSS Kindergarten (threaded across the unit)
- K.MD.3: Classify objects into given categories; count the numbers of objects in each category and sort the categories by count.
- K.CC.5–7: Count to answer “how many”; compare numbers; compare two numerals.
- Mathematical Practices: MP.5 (use tools) and MP.6 (precision) emphasized; MP.3 (explain/justify) threaded.
Success Criteria — Student Language
- I can sort by an attribute and tell what it is.
- I can count how many in each category and record it.
- I can say which has more, fewer, or the same and show evidence.