The first episode of Sesame Street in 1969 included a segment called “One of These Things Is Not Like the Other.” Viewers were asked to consider a poster that displayed three 2s and one W, and to ...

When elementary school students in her district struggle in math, Elizabeth Abel wants to get them support as soon as possible. That’s because addressing students’ gaps in kindergarten, 1st, and 2nd ...

Compare four sets of pattern blocks. Use pattern blocks to make different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number less than his focus number.