You will need a leaves which can be easily found at your local craft store or dollar store, bags or buckets for sorting and a rake. I found the buckets and rake at Target.
Next, using a Sharpie write on the leaves whatever concept that you would like your students to focus on.
I created this center for Word Work. Students had to sort words, letters and numbers. But it could be easily turned into a math center by writing number sentences on the leaves and having students sort the answers into the appropriate buckets.
Students will toss their leaves up into the air or scatter their bucket. They will rake up the leaves and sort as they go.
If needed, you could easily add a "worksheet" for students to fill out for accountability purposes.
Honestly, though, my students have loved working at this center. They love it because it gives them the sensory experience of playing with the leaves. I like that I can incorporate the sensory and learning.