Math Activities for 4th - 5th Graders

can you build a pyramid with blocks?  (*idea: use starbursts for your blocks)

how many total blocks will it take to build a square pyramid with 1 level?

With 2 levels?

with 3 levels?

with 4 levels?

can you list these pyramid numbers?

can you find a pattern in the pyramid numbers?

Can you build x  + 9 = 13 ?

using Algebra Tiles (found on NCTM illluminations website)