Now, D.C. has one more number bond for us to work out in order to get him ... 13 minus three equals 10. Great work, Math Mights. I think you're getting really good at using the place value strips ...

Let’s use our ... re going to get. Just remember that when it comes to creating fully engaged and focused groups working on an issue, the magic number is always seven (plus or minus two).

The findings, however, are unlikely to resolve a long-running debate over whether children use language to develop their number sense. Some researchers argue that initial math insights arise from ...