This ideas is to help students identify their teen numbers and be able to pair up. I made paper cut outs of bread slices. I put paper jelly on half and paper peanut butter on half of the the bread slices. Then I wrote one of the teen numbers 10-20 on the peanut butter slices and made a matching jelly slice. When I want to pair kids up I pass out the bread and instruct them to find their match and make a sandwich.