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Interactive lessons from basic arithmetic to calculus. Graphing calculator, step-by-step solutions, and adaptive practice that meets your child where they are.
Number sense, algebra, geometry, trigonometry, statistics, and calculus — organized by grade level with clear progression paths.
Every practice problem includes a detailed walkthrough. Your child sees not just the answer but how to think through each step.
Plot functions, explore transformations, and visualize equations directly inside the app. No separate tools needed.
Problems get harder as your child improves and easier when they struggle. The sweet spot of challenge keeps motivation high.
Free to start
Free tier included
“My son went from a C to an A in algebra. The step-by-step explanations clicked in a way his teacher's didn't.”
— Tom H., parent of an 8th grader