The Double-Decker Bus: Early Addition and Subtraction
$34.95
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Develops the basic facts to 20 and works toward getting the facts automatic by employing the use of the 20-bead MathrackTM to support the use of the five and ten structures and strategies such as doubles +/-, making a ten, and compensation. After the unit is done, work on minilessons with the rack all year to get the basic facts automatic.
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$34.95
(+$3)