Count back & use the relationship between addition and subtraction to subtract within 20. Warm up with a Mystery Math Mistake to find the error in DC's addition. Use ...

The following are three examples of calculation strategies students might discover on their own if they were taught standard algorithms first and allowed to master them before moving on. The ...

Susan Hobart asked this week’s “question-of-the-week": What strategies help math facts stick besides the old “drill the skill” and, if someone is not proficient at addition facts, can learning ...

Subtraction is a fundamental math skill that kids learn early in their academic journey. While it's a crucial building block for more complex arithmetic, the process of "taking away" can sometimes ...

ST. GEORGE – Three years into implementation of Common Core standards, some elementary teachers in Southern Utah have a positive view of what it does in their classroom because it allows them to reach ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi, I'm Miss James and I'm so happy to be your teacher today. For this lesson, you will need 10 objects ...

Schools around the country are holding math nights, sending letters home, and posting videos on their websites to teach parents about the Common Core State Standards for mathematics, which require ...