The National Council of Teachers of Mathematics is a public voice of mathematics education, providing vision, leadership, and professional development to support teachers in ensuring mathematics ...
Mathematics Teaching in the Middle School (MTMS) is an official peer-reviewed journal of the National Council of Teachers of Mathematics and is intended as a resource for middle school students, ...
Fran: I am looking at my reflection. When light from an object is reflected by a surface, it changes direction - it bounces off the surface. So, if we shine this light onto this mirror, then we can ...
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