Give and Take From 200
Third graders solve problems using 3 digits by counting blocks out loud verbally. This changes the values of numbers. The exercise appears to build the adding and subtracting abilities of the students.
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Lightest and Heaviest—Sorting Algorithms
How do computers sort data lists? Using eight unknown weights and a balance scale, groups determine the order of the weights from lightest to heaviest. A second worksheet provides the groups with other methods to order the weights. The...
3rd - 12th Math CCSS: Adaptable
Four in a Row Addition and Subtraction
Scroll down to find four fun addition and subtraction partner game boards, complete with endless opportunities for practice with numbers 0-38. Kids choose numbers from a number box and, depending on the game, either find the sum or the...
1st - 3rd Math CCSS: Adaptable
Squeebles Addition & Subtraction
The math monster is at it again, this time stealing all the cars and drivers that were to take part in the cart race. If their addition and subtraction facts are up to the challenge, young mathematicians can win the drivers' freedom and...
K - 3rd Math CCSS: Adaptable
Round to the Nearest Hundred Using a Number Line
Using a number line to round to the nearest hundred is a snap after watching this video. This sixth of eight videos walks through a review explanation of benchmark numbers, rounding, and midpoints. It then gives several examples of how...
5 mins 2nd - 4th Math CCSS: Designed