SamizdatMath

See the guy shouting in the upper left hand corner? Tap his face and the receipt will show up with an amount between 1¢ and $9.99; you can then show how much money you paid, and then how much change to give back. Great for whole class work, direct teaching, or playing "store." Another great interactive SmartBoard Activity from SamizdatMath!

Here's a new version of this SmartBoard activity: the idea is to teach subtraction skills by "jumping" from one number to another number through smaller steps. Press the button and two numbers will appear in each box on the number line. Your kids can grab one of the little figures on the size and show the different "jumps" and label their size to get from one number to another, which shows their "difference" better know as the answer to a Subtraction problem! Check this out - it's free! What d