Imagine you’re a character in a math problem. You have three platters, but two cakes. All three platters need to have the same amount of cake. How would you split it? Without even saying the word ...

Student work posted in an elementary school before the pandemic shows the “partial product” method of solving a multiplication problem, one of many methods students have learned with Common Core.

Baltimore — Imagine you’re a character in a math problem. You have three platters, but two cakes. All three platters need to have the same amount of cake. How would you split it? Without even saying ...