← 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.a

10 can be thought of as a group of ten ones — called a “ten”.

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