Expand on young mathematicians' prior knowledge of multiplication with this series of worksheets introducing the concept of division. Covering a wide range of topics from basic fact families and single-digit...

In the deserts of Arizona and New Mexico, some tiny creatures show just how quickly natural selection can turn a mutation into an advantageous adaptation. Watch a video about rock pocket mice, who show that one small change can make all...

Reinforce the concept of factors, multiples, and prime numbers with a 16-problem practice worksheet. Eight pages offer a variety of problem solving opportunities with clear objectives and tips for successful completion. 

Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how...

It's assessment time! Determine your young mathematicians' understanding of elapsed time with this brief, five-question quiz.

Test your scholars' knowledge of a multitude of concepts with an assessment aligned to the California math standards. Using the exam, class members show what they know about the four operations, positive and negative numbers, statistics...