Mr. Alongi Math
Math with Mr. Alongi
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Interactive student manipulative

Integer Number-Line Slider

Build a number line, place the slider on a starting integer, and move left or right to model your own operation. The tool tracks the movement without solving the problem for you.

1 · Build the line

Choose your scale and jumps

Every integer gets a tick mark. The label scale only changes how often a number is printed.

2 · Place and move

Use the tick marks to place the slider, then move it left or right.

-10-9-8-7-6-5-4-3-2-1012345678910

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