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Grade 1 Math Units

Unit Plan 33 (Grade 1 Math): Mixed Practice—OA, NBT, MD, G

Blend word problems, place value, measurement/data, and shape tasks to apply strategies, choose helpful models, and clearly explain reasoning across math domains.

Dr. Michael Kester-Haynes

• 5 min read
Unit Plan 33 (Grade 1 Math): Mixed Practice—OA, NBT, MD, G

Focus: Blend word problems, place-value reasoning, measurement & data, and shape work for application practice and clear explanations.

Grade Level: 1

Subject Area: Mathematics (Comprehensive Spiral)

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

I. Introduction

Students rotate through focused tasks that integrate Operations & Algebraic Thinking (OA), Number & Operations in Base Ten (NBT), Measurement & Data (MD), and Geometry (G). Emphasis is on choosing sensible strategies, showing work with models, and explaining why answers make sense.

Essential Questions

  • How do I choose a strategy that fits a problem?
  • Which model (blocks, number line, tally/bar graph, shapes) best shows my thinking?
  • How do I explain my work so others can understand and critique it?

II. Objectives and Standards

Learning Objectives — Students will be able to:

  1. Solve addition/subtraction word problems within 20 and write matching equations with an unknown.
  2. Use tens and ones to represent numbers and compute within 100 (no regrouping), explaining place-value choices.
  3. Measure, compare, and record lengths with nonstandard units; collect and display data with tallies/bar graphs.
  4. Identify, describe, compose/decompose 2D shapes and discuss attributes precisely.
  5. Communicate reasoning using precise vocabulary, units, and symbols; respond to feedback and revise.

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

  • 1.OA: Represent/solve problems (1–2), apply properties/strategies, and demonstrate fluency within 10–20 where appropriate.
  • 1.NBT: Count/read/write to 120; understand tens/ones; add/subtract within 100 (no regrouping).
  • 1.MD: Order/compare lengths; tell & write time to hour/half-hour as context; organize/interpret data.
  • 1.G: Identify/describe 2D shapes; compose/decompose shapes; use equal shares language where relevant.
  • Mathematical Practices: MP.1–MP.6 threaded; MP.3 (justify/critique) and MP.6 (precision) emphasized.

Success Criteria — Student Language

  • I can pick a model that fits the problem (blocks, number line, tally/bar graph, shapes).
  • I can explain using tens and ones, correct units, and clear symbols.
  • I can revise my work after feedback to make my thinking clearer.