Problem of the Week 11/17/2013
Gina caught a fish. To win a contest, her fish had to weigh more than the previous record, which was …
Gina caught a fish. To win a contest, her fish had to weigh more than the previous record, which was …
Students seem to love using cross multiplication to compare fractions and check for equivalence; this simple, mysterious procedure will assure …
Here is an activity for middle school students that borrows a familiar number sense routine to have students think deeply …
Jared’s mom works for a company that publishes books. When he visits her office, he likes to watch the machine …
Our students “get” place value, right? I mean it’s not rocket science; we teach them to know the names of …
Do your students struggle with subtraction across zeroes? Here’s an activity that might help them make sense of regrouping. Let’s …