Looking for a fun interactive teaching idea for adding doubles and doubles plus one? Well look no further as Adding Doubles Facts Game Doubles Plus One Center Ten Frames Addition Puzzles, will serve as an exciting lesson plan for 1st Grade elementary school classrooms. This is a great resource to incorporate into your unit as a guided math center rotation, review game exercise, small group work, morning work, remediation, intervention or rti. It can also be used as a quiz, drill, test, or assess