← All Standards

Grade 1

• Geometry

  • 1.G.A.1
  • 1.G.A.2
  • 1.G.A.3

• Measurement & Data

  • 1.MD.A.1
  • 1.MD.A.2
  • 1.MD.B.3.b
  • 1.MD.C.4

• Number & Operations: Base Ten

  • 1.NBT.A.1
  • 1.NBT.B.2
  • 1.NBT.B.2.a
  • 1.NBT.B.2.b
  • 1.NBT.B.2.c
  • 1.NBT.B.3
  • 1.NBT.C.4
  • 1.NBT.C.5
  • 1.NBT.C.6

• Operations & Algebraic Thinking

  • 1.OA.A.1
  • 1.OA.A.2
  • 1.OA.B.3
  • 1.OA.B.4
  • 1.OA.C.5
  • 1.OA.C.6
  • 1.OA.D.7
  • 1.OA.D.8

Arizona Math Standard: 1.NBT.B.2.b

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

What If There Were No Hundreds Place?

Imagine a world with no hundreds place. We’d have to call it ten tens instead. But then, what would we call the thousands place? How would we read 9999? What if we added one more?

Gr 1, 2, 3, 4, 5, 8

Math Curiosity: Waring’s Conjecture

So, can you write every odd (greater than 3) as the sum of three primes?

Gr 1-5