Tri-CAN-gle
3.NBT.3 – Fluently add and subtract within 1000 using strategies and algorithms based on place value.
4.NBT.4
Act 1
What do you notice? What do you wonder?
Focus Question: How many cans are there making the triangle?
Act 2
Act 3
3.NBT.3 – Fluently add and subtract within 1000 using strategies and algorithms based on place value.
4.NBT.4