Numbers and Dots Counting Cards

I used this game in my classroom the other day and I was happily surprised. I want students to have a deeper understanding and stronger number sense, but just counting numbers doesn't seem to do the trick. This activity allowed my students the counting practice, but challenged them to see number patterns/groups. They worked to find more efficient ways to count. I loved it.

                http://www.teacherspayteachers.com/Product/Numbers-and-Dots-Counting-Cards