US catalog, October 2026.
A unit of math is rarely just one thing to know. The 8th grade unit on the Pythagorean Theorem, for example, asks you to see why a2+b2=c2 is true, to spot the hypotenuse, to find a missing side and to use the theorem in real situations. In Mathflow, every unit of your course is split into precise skills, and each skill is practiced in a series in three levels.
Level 1, Explore. You drag the foot of a ladder until its top reaches a window sill, or the corner of a screen until it makes a 50-inch TV. You see how the three sides of a right triangle depend on each other before you write a single equation.
Level 2, Explain. A 10-foot ladder leans against a wall: you decide which of two students is right about its height. You tap the first wrong line of a classmate’s work, and you complete the method for finding a missing leg. Explaining why a method works, and why another one fails, is what makes a concept stick.
Level 3, Solve. How far is it straight from home plate to second base? How far from the building does a wheelchair ramp start? You set up the calculation, type your answer and round it to the nearest tenth of a foot. This is the level of quizzes, unit tests and exams.
When you get stuck, Alphi, the AI math tutor, gives you a hint rather than the answer, at any hour. When the skills of a unit are in place, the Chapter Challenge checks them: 8 questions, 3 lifelines and a perfect score to earn the chapter gem.
The course pages on this site follow the same logic: what the course covers unit by unit, two worked problems to redo on your own, the common mistakes to avoid, and examples of each level from the app.
