As part of her holiday preparations, Cathy decorates sugar cubes. Cathy's aunt, Ms. Betty, runs a bakery and likes to think of ways to make her store more attractive, especially for holidays. She enjoys cutting, arranging, and designing seasonal displays with her famous brownies almost as much as she enjoys baking them. And everyone loves the different sizes of Ms. Kate's chocolate sticks.


Shuk-kwan S. Leung and Jane-Jane Lo, who submitted these problems, wish to thank Vesta Han for the beautiful artwork and photographs.

Edited by Lynn Columba,, who teaches elementary and secondary school mathematics methods courses at Lehigh University's Department of Education and Human Services in Bethlehem, Pennsylvania. E-mail creative solutions and adapted problems to for potential publication, noting “readers exchange” in the subject line. Activities in “math by the month” are grouped by grade bands K– 2, 3–4, and 5–6; they feature a monthly theme. Specific math content varies by issue. See detailed submission guidelines at

Teaching Children Mathematics
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