A key part—though surely not the only part—of early-grades math is ensuring students get the basic arithmetic functions down and, beyond that, making sure they’re able to swiftly and automatically ...

As surely as 2+2=4, it also equals a beginning step on students’ mathematics journey. Single-digit addition facts like these are so heavily used in mathematics that it’s critical that students ...

Fact families are groups of numbers that have a relationship to each other. For each pair of addition facts, there are also two subtraction facts in the same family. Here is a fact family using the ...