Coin Spiral

5.NBT.B.5
5.NBT.B.7
6.NS.B.3 – Fluently add, subtract, multiply, and divide multi-digit decimals using the standards algorithm for each operation

Multiply or divide decimals

Act 1

What do you notice? What do you wonder?

Focus questions: How many quarters in the spiral? How much is the spiral worth?

Act 2

Act 3