Video Description: This game 500, which can be played with students grade three and up, uses ordinary playing cards (as well as Power of Ten cards) and in this demonstration the viewer will see the importance of giving adequate wait time, and asking students how they get their answer. Connections are made to problem solving strategies such as breaking up the number and making connections to known facts. One student self-corrects which is a good sign of number sense. The game is includes both adding and multiplying and can be played at a variety of levels. The important thing is to have students try to add the double-digit numbers mentally without lining them up. One of the other important principles illustrated is the teaching strategy of teaching games to guided math groups where the students are at the same level. This is not normally a game at which grade three students excel. The game can also be played by starting at 500 and subtracting until a player reaches zero.