The manipulative for this weeks is small toys. I couldn't resist making a play activity based on Adam's favourite small toy of all time - the toy car! we have very few shape adventures I decided to create a Learning Shapes With Toy Cars activity.
I think you could also have multiple pipe cleaners coming from one number and students have to show multiple ways to add numbers to get to that number. Counting with pipe cleaners and beads. Great for fine motor development too.