🔢 MathLevel 1Lesson 39
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Review of All Topics

Lesson preview: the Mini Lesson and Vocabulary are open to everyone. Guided practice, exercises, the parent checklist and the printable PDF worksheet come with full access (free 7-day trial or membership).

Learning Objectives

  • 1Show what you know from all five units of Grade 1 Math
  • 2Recall key facts from numbers, addition and subtraction, shapes, data and money, and problem solving
  • 3Feel confident and ready for Math Fair Day
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Mini Lesson

You have traveled through all five math units this year — and tomorrow is Math Fair Day! Let us look back at the most important ideas from every unit so you feel confident and ready.

Unit 1 — Numbers and Counting (L1–8)

  • Count to 100. Skip count by 2s, 5s, and 10s.
  • Place value: tens and ones (e.g., 34 = 3 tens + 4 ones).
  • Compare numbers: greater than (>), less than (<), equal to (=).
  • Order numbers from least to greatest or greatest to least.

Unit 2 — Addition and Subtraction (L9–16)

  • Add and subtract small numbers. Use a number line to help.
  • Fact families: 3 + 4 = 7, 4 + 3 = 7, 7 − 3 = 4, 7 − 4 = 3.
  • Doubles: 4 + 4 = 8. Near doubles: 4 + 5 = 9 (doubles + 1).
  • Making 10: 6 + 4, 7 + 3, 8 + 2, 9 + 1.

Unit 3 — Shapes and Measurement (L17–24)

  • 2D shapes: circle, triangle, square, rectangle, pentagon, hexagon.
  • 3D shapes: sphere, cube, cylinder, cone, rectangular prism.
  • Compare: longer/shorter, taller/shorter, heavier/lighter, holds more/less.
  • Time: read clocks to the hour and half-hour. Read a calendar.

Unit 4 — Data and Money (L25–32)

  • Sort objects by color, shape, or size.
  • Tally marks and bar graphs: record and read data.
  • Coins: penny 1¢, nickel 5¢, dime 10¢, quarter 25¢.
  • Count coins, pay exact prices, make change.

Unit 5 — Problem Solving & Projects (L33–38)

  • Missing number puzzles and number patterns.
  • Word problems: spot key words, write a number sentence, solve, check.
  • Patterns in nature: repeating (same unit) and growing (adds each step).
  • Build with shapes, run a survey, design a shop poster.
Five unit map showing all Grade 1 math topicsFive colored circles arranged vertically labeled unit 1 through unit 5 with their topics.Grade 1 Math — All 5 unitsunit1Numbers & CountingCount, place value, compare, orderunit2Addition & SubtractionFact families, doubles, make 10unit3Shapes & Measurement2D/3D shapes, length, timeunit4Data & MoneySort, tally, graphs, coins, changeunit5ProblemSolving
All five Grade 1 Math units and their key topics.
Five key facts to remember, one from each unitFive colored rows each showing one key fact from a unit.One Key Fact per unitP1:34 = 3 tens + 4 ones | tens digit = groups of 10Skip count by 5s: 5, 10, 15, 20, 25…P2:3 + 4 = 7 → fact family: 7 − 3 = 4 and 7 − 4 = 3Doubles + 1: 4 + 5 = (4+4) + 1 = 9P3:Hexagon = 6 sides | Dime = 10¢ (smallest coin)Heavier side tips the balance scale downP4:Change = Amount paid − Price | Check: Price + Change = PaidLonger bar on graph = more votesP5:"altogether / in all" → add | "left / fewer" → subtractAlways check your answer by substituting it back
Five key facts — one essential rule from each unit — for final review.
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Ask yourself: "Which unit felt easiest? Which one do I want to practice one more time before Math Fair Day?"

Vocabulary
Place value
The value of a digit based on its position (tens, ones)e.g. 34 = 3 tens + 4 ones
Fact family
A set of related addition and subtraction facts using the same three numberse.g. 3+4=7, 4+3=7, 7−3=4, 7−4=3
Hexagon
A 2D shape with 6 sides and 6 cornerse.g. honeycomb cell
Change
The money you get back when you pay more than the pricee.g. Paid 10¢ for a 7¢ item → 3¢ change
Altogether
A key word in word problems that signals additione.g. "5 and 3 altogether" → 5 + 3
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← Lesson 38: Designing a Small Shop PosterLesson 40: Math Fair Day →