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BUG MULTIPLICATION—MULTIPLICATION AS SCALING

Grades: 3‒4

Students explore multiplication as a scaling operation to learn and practice multiplication facts up to 10 × 10. Using groups of replicating bugs as visual models of multiplication helps students to conceptualize multiplication as the scaling of one number by another. Through their work, students develop strategies for finding products.

OBJECTIVES 
  • Students will use a scaling model to explore multiplication.
  • Students will develop strategies for computing up to 10 × 10.

COMMON CORE CONNECTIONS 
Mathematical Practices

(1) Make sense of problems and persevere in solving them; (2) Reason abstractly and quantitatively; (3) Construct viable arguments and critique the reasoning of others; (5) Use appropriate tools strategically; (7) Look for and make use of structure.

Content Standards

3.OA1, 3, 5, 7; 4.OA1

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This activity is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License: http://creativecommons.org/licenses/by-nc-sa/3.0/. If you adapt and/or share this activity, you must attribute it to "KCP Technologies, a McGraw-Hill Education Company." You may distribute it only non-commercially under the same or similar license.


This material is based upon work supported by the National Science Foundation under KCP Technologies Award ID 0918733, with grant period September 1, 2009 through August 31, 2013. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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