Students go over using number lines to solve the four equations in a fact family. In this lesson, students go over using number lines to solve the four equations in a fact family. Julia uses charts, ...

Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using different addition and subtraction strategies to solve two-digit ...

Record numbers of U.S. students severely struggle with math, but only a fraction of them receive screening and support targeting potential math disabilities. While math teachers in a nationally ...