When I taught Kindergarten, one of my favorite teaching tools were pattern blocks. Kids can explore mathematical concepts such as shapes, symmetry, fractions and much more. You can also create some really great art using these blocks.
In my teaching days, I created these pattern block template cards for my students to use. They are very easy to make. I just laid some pattern blocks in a design on a large index card then traced them, colored them in, and covered the cards with clear contact paper. The numbers in the corner were just so I could keep track of the cards. I recently found the cards and the pattern blocks in a closet and brought them out for my three year olds to explore.
I was so happy to see how the girls expanded on this activity. The blocks kept them busy and playing for some time.
For some more easy math activities check out: You Can Count on Me