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PlayOwl

Mathematics · Grade 4

Multi-Step Modeling and Justification

Learners plan and solve multi-step word problems with all four operations, write equations with a letter for the unknown, decide what remainders mean, check answers with estimates, use area and perimeter formulas for rectangles (including finding a missing side), and write and critique mathematical justifications.

  • 4 lessons
  • About 90 minutes
  • Multi-step problems check: 8 questions
  • Ways to answer: fill in the blanks, choose an answer, match pairs, type a number, put in order and sort into groups
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What learners will discover

  • Plan and solve multi-step word problems with whole numbers, writing equations with a letter for the unknown.
  • Interpret remainders in multi-step problems and use estimation to judge whether an answer is reasonable.
  • Use the area and perimeter formulas for rectangles to solve real-world problems, including finding an unknown side length.
  • Write a justification for a solution and critique another person's reasoning.

Lessons

  1. Plan before you solve 7 steps5 practiceabout 22 min
  2. Remainders and reasonable answers 6 steps4 practiceabout 20 min
  3. Area and perimeter formulas 7 steps5 practiceabout 24 min
  4. Justify and critique 6 steps3 practiceabout 24 min
  5. Multi-step problems check 8 questions at the end

Keep exploring

Games to practice with

  • Number-Line HopHelp the frog hop to the right number — from counting to negative fractions.
  • Paint by AnswersSolve each space, dip your brush and watch a picture come to life.
  • Array OrchardPlant trees in rows, pack fruit into crates and split big fields to multiply.

More 4th grade math

Guide for grown-ups