The Common Core Math Standards adopted by many US states are an attempt to establish consistent, age-appropriate, research-backed goals for math learning. This allows more easeful transitions for...

The Common Core State Standards (CCSS) include eight “Mathematical Practices” that teachers and students are encouraged to use throughout their mathematical lives. These are different from the...

The Common Core State Standards (CCSS) include eight “Mathematical Practices” that teachers and students are encouraged to use throughout their mathematical lives. These are different from the...

The Common Core State Standards (CCSS) include eight “Mathematical Practices” that teachers and students are encouraged to use throughout their mathematical lives. These are different from the...

Those of us in school before the 2010s likely call it carrying the one. Those in school since then probably call it regrouping. Either way,
Carrying the one is the process of taking ten units,...

The Common Core State Standards (CCSS) include eight “Mathematical Practices” that teachers and students are encouraged to use throughout their mathematical lives. These are different from the...