Adding to ten is a crucial building block. I use these flashcards to run an intervention group with a focus on conceptual understanding, visual pictures of numbers, strategies, and practice! These flashcards work well with the Assessment I also have available. I usually print these in color, glue them to construction paper, and then laminate them. Here is my intervention lesson: Warm up each day with matching ten frames (6 and 4, 7 and 3 etc.) as they did that more and more easily I then turned