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Bus Sums

Bus Sums

Purpose of the tool

Teaching the students the meaning of addition and subtraction (add and subtract).

Grade: K,1
Common core standards: 
MP4 MP5 K.OA.A.5 1.OA.A.2 1.OA.B.4 1.OA.C.5 1.OA.C.6 1.NBT.C.4

Explanation of the tool

On the screen you'll see a bus.

Drag people to the bus.
Press 'Next stop'.
Drag people to the bus to add or drag people off the bus to subtract.
Press 'Show sum' and the sum appears.

If you press 'Next stop', you can continue to work on your sum.

Press 'Again' to make the bus start again (empty).