Our "almost fun" Math lessons explain Math concepts using non-Math concepts you're already familiar with. Use our interactive lessons and calculators to master these skills 🥳.

Culturally-responsive, relatable, and free learning resources - including over 400 SAT prep questions and Math lessons.

Explore our supplemental lesson plans that help you kick off 4th-10th grade math units with puzzles, discussion, and exploration.

What is a function? What is a domain in math? What is a range in math? Explore this lesson to find out and use our step-by-step functions calculator to learn how to solve functions.

Explore this lesson to learn about positive slope, negative slope, zero slope, undefined slope, and slopes with fractions. Use our step-by-step slope calculator to learn how to find the slope of a …

What is an equation? What is a linear equation? What is a variable? Explore this lesson and our step-by-step linear equations calculator to find the answers and learn how to solve linear …

Presentable versions of the Linear Equations lesson's 3 Act Tasks.

Explore this lesson and use our step-by-step calculator to learn how to find the mean, median, and mode of a set of data.

Use any or all parts of this lesson guide on Percentages to inspire interest, stimulate thinking, and illuminate teacher moves. This lesson guide follows the 5E model of instruction and includes 3 …

Use any or all parts of this lesson guide on The Pythagorean Theorem to inspire interest, stimulate thinking, and illuminate teacher moves. This lesson guide follows the 5E model of …