Red Light/Green Light is two addition/subtraction math games in one and focuses on either addition with regrouping (carrying) or subtraction with renaming (borrowing). Since you choose the addition or subtraction problems, the game can be as easy or as difficult as you would like so it is perfect for differentiation. A list of materials as well as complete directions are enclosed in the handout. The game requires minimal preparation by the teacher.

The students each have a red light/green light card. Red means stop; regrouping or renaming is necessary before the problem can be worked. Green means there is no regrouping or renaming necessary, and the student can proceed to work the problem. This game will engage the students plus give the teacher a quick assessment of who understands the process by using visual signals.

• Use with a small group of students.
• Use with an entire class.
• Make several sets of cards to make the game different every time.
• Work on specific math concepts with two or three students.

An example of how to play the game is also included. This game is appropriate for grades 2-4.

You also might like these math games that were developed to practice math facts.

• Bug Ya – Math Facts Computation Game
• Race to the Summit – A Math Game to Practice Addition Facts
• Make A Difference – A Math Game to Practice Subtraction Facts