← All Standards

Grade 3

• Geometry

  • 3.G.1

• Measurement & Data

  • 3.MD.1
  • 3.MD.2
  • 3.MD.3
  • 3.MD.5
  • 3.MD.6
  • 3.MD.7.a
  • 3.MD.7
  • 3.MD.7.b
  • 3.MD.7.c
  • 3.MD.7.d
  • 3.MD.8

• Numbers & Operations: Base Ten

  • 3.NBT.1
  • 3.NBT.2
  • 3.NBT.3

• Numbers & Operations: Fractions

  • 3.NF.1
  • 3.NF.2.a
  • 3.NF.2.b
  • 3.NF.3.a
  • 3.NF.3.b
  • 3.NF.3.c
  • 3.NF.3.d
  • 3.NF.3

• Operations & Algebraic Thinking

  • 3.OA.1
  • 3.OA.2
  • 3.OA.3
  • 3.OA.4
  • 3.OA.5
  • 3.OA.6
  • 3.OA.7
  • 3.OA.8
  • 3.OA.9

CCSS Math Standard: 3.OA.8

Solve problems involving the four operations, and identify and explain patterns in arithmetic. Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding. (This standard is limited to problems posed with whole numbers and having whole-number answers; students should know how to perform operations in the conventional order when there are no parentheses to specify a particular order (Order of Operations).)

Gr 3-5

Gr 1-4

Adding and Subtracting Fruit

Use super cute fruit to introduce algebraic thinking to your young math students.

Gr 1-3

Contig

Roll three dice and combine them using any mathematical operation. But be strategic to maximize your points!

Gr 3-7

Math Curiosity: Magic Triangles

Can you make each side of this triangle add up to 9 using the digits 1-6?

Gr 2-8

Disneyland Parking Structure Math Project

Your students will use estimation strategies to figure out how many parking spots are there in the parking structure at Disneyland? And you bet I reveal the real answer!

Gr 3-4

Parentheses: How big of a change can they make!?

Two tiny parentheses. One expression. How big of a change can they make? Bigger than you think.

Gr 3-8

Math Curiosity: Four Squares

Every positive integer can be written as the sum of (at most) four perfect squares!

Gr 1, 2, 3, 4, 8

Math Curiosity: Magic Squares

Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!

Gr 1-4

Math Curiosity: Odds & Squares

Why does the sum of the first 5 odds also equal 5 squared?

Gr 1-4

Math Curiosity: Primes and Squares

Can any perfect square be written as the sum of two primes?

Gr 2-4

Math Curiosity: Legendre’s Conjecture

It seems like there’s always a prime number between two perfect squares… but is this always the case!?

Gr 3-6

Math Curiosity: Palindromic Number Conjecture

Using this one weird trick, it seems that you can turn any number into a palindrome!

Gr 1-4

The Game of 100

Who can get to 100 first in this simple, but delightful, math game?

Gr 2-7

Math Curiosity: Collatz Conjecture

The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…

Gr 1-5

Math Project: What If I Bought Apple Stock Instead?

What if you had an original iPod and sold it compared to if you had bought the equivalent amount of Apple stock and sold that?

Gr 2-8