3 Act Math

Act 1

1. How many cups will there be?
2. Write down a guess.

Act 2

3. What information would be useful to figure this out?
4. Write down some questions you have in your head right now.
First Three Cups
Final Cup

Act 3


What would happen if the first cup had a 10.1 cm diameter?
What would happen if the final cup had a 1.6 cm diameter?

Common Core Standards
Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
add and subtract whole numbers and decimals to the hundredths place using the standard algorithm