I made these counting mats years ago and still use them all the time! I put out seasonal counters with them and the kids love to spread them out and fill them up:)
They have held up really well so I decided to add a new feature. On the back I used glitter glue to draw the number and the multiplication possibilities in arrays. It is a wonderful texture to trace with their little fingers.
In addition I made new larger mats for numbers 11-12.
I did the same thing on the back of them. These would be great to teach a variety of lessons. Prime numbers, counting multiplication, division greater and less then and many more;)