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Grade 2

• Numbers & Operations: Base Ten

  • 2.NBT.5
  • 2.NBT.6
  • 2.NBT.7
  • 2.NBT.9

• Operations & Algebraic Thinking

  • 2.OA.1
  • 2.OA.2
  • 2.OA.3

CCSS Math Standard: 2.OA.3

Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

Fizz Buzz: Counting by 2s and 3s

A counting game where twos become “fizz” and threes become “buzz.” Easy to learn, surprisingly hard to survive.

Crossing Every Bridge Exactly Once (aka Eulerian Paths)

How can you cross each bridge in this city exactly once?