Fourth Grade Math

About Grade 4 Math

Grade 4 math (4th grade, ages 9–10) is 40 lessons in 5 units: Unit 1 — Numbers and Place Value (lessons 1–8), Unit 2 — Operations (lessons 9–16), Unit 3 — Fractions and Decimals (lessons 17–24), Unit 4 — Geometry and Data (lessons 25–32), and finally Unit 5 — Projects and Review (lessons 33–40), project work that brings the year together. Along the way, children learn to estimate multiplication products by rounding factors to the nearest ten or hundred, define a mixed number as a whole number combined with a proper fraction and define volume as the amount of space inside a 3D shape, measured in cubic units (in³, ft³, cm³, m³).

Start here: Lesson 1: Read and Write Numbers to 1,000,000 is free to open and print. Every other lesson has a free preview of its mini lesson and vocabulary.

Paper first: each lesson is printed before you call your child. You read it once and talk it through, your child does the exercises on paper, and you correct together with the Parent checklist — about 45 minutes at the table. The next day, a 10-minute screen review of the same lesson.