🔢 MathLevel 1Lesson 40
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Math Fair Day

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

  • 1Present your favorite math discovery from the year to a family audience
  • 2Explain a math idea in your own words and demonstrate a skill
  • 3Celebrate completing all 40 lessons of Grade 1 Math
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Mini Lesson

You did it! You have completed all 40 lessons of Grade 1 Math. Today is Math Fair Day — a chance to show the people you love everything you have learned, and to celebrate how far you have come!

What is a Math Fair?

  • A Math Fair is like a science fair — but for math!
  • You choose one topic you loved this year and present it to your audience (family members, a friend, or a stuffed animal!).
  • You explain the idea in your own words and demonstrate it using drawings, coins, shapes, or anything you like.

How to prepare your presentation

  1. Choose your topic — pick the math idea or unit that excited you most.
  2. Make a display — draw a poster, a shape picture, a tally chart, or a shop poster from your worksheets.
  3. Write three sentences to say out loud: what the topic is, one interesting fact you learned, and why you liked it.
  4. Demonstrate live — show one skill: count coins, solve a word problem, name shapes, or extend a pattern.

What you have achieved this year

  • You can count to 100 and understand place value.
  • You know addition and subtraction facts and fact families.
  • You can name 2D and 3D shapes and compare measurements.
  • You can read tally charts, bar graphs, identify coins, count money, and make change.
  • You can solve word problems, find missing numbers, and spot patterns in nature.
Celebration banner listing five Grade 1 Math achievementsA gold banner reading You Did It at the top. Below it five achievement badges: Unit 1 Numbers, Unit 2 Addition and Subtraction, Unit 3 Shapes and Measurement, Unit 4 Data and Money, Unit 5 Problem Solving.You Did It!Unit 1 — Numbers & CountingUnit 2 — Addition & SubtractionUnit 3 — Shapes & MeasurementUnit 4 — Data & MoneyUnit 5 — Problem Solving & Projects
All five Grade 1 Math units completed — a celebration of every achievement this year.
Math Fair presentation checklist with four stepsA checklist with four rows: Choose your topic, Make a display, Write three sentences, Demonstrate one skill live.Math Fair Presentation Checklist✓Choose your topicWhich unit excited you most?✓Make a displayPoster, drawing, shape picture, or shop poster✓Write three sentences to say aloudWhat it is · One fact · Why you liked it✓Demonstrate one skill liveCount coins, solve a problem, name shapes…
Four-step Math Fair checklist — choose topic, make a display, write sentences, demonstrate live.
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Ask yourself: "What am I most proud of learning this year? How will I explain it so everyone understands?"

Vocabulary
Math Fair
An event where you present a math topic you love to an audiencee.g. Like a science fair, but for math
Present
To share and explain your work out loud to an audiencee.g. Stand up and show your poster
Display
A visual showing your topic — poster, drawing, or charte.g. Poster of a shop with prices
Demonstrate
To show a skill in action while the audience watchese.g. Count coins to make 25¢ live
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