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Free ACT Math course · Built for focus

Learn the 36 skills behind a 36

Short lessons, real Desmos skills, and a rocket program that turns every right answer into Funding. Built for how you actually focus.

  • Free, no account
  • Progress saves on this device

How it works

Learn it. Practice it. Launch it.

Every session runs on the same short loop, and every step pays off.

  1. 01

    Learn in clear steps

    Seven steps per lesson: warm up, try, learn, work examples, practice, spot a mistake, and check what stuck.

  2. 02

    Every right answer pays

    Earn Funding and a fuel cell. New, harder, and due questions pay the most, so the best money move is the best learning move.

  3. 03

    Launch, upgrade, go higher

    Six cells fill the tank. Launch, spend Funding on better parts, and push past the clouds toward space.

FIG. 2 · LAUNCH VEHICLEREV. 36HEIGHT 41.8 MAERO · MK3DRAG ×0.73GUIDANCE · MK2EFFICIENCY 61%FUEL TANK · MK4ENERGY ×1.94ENGINE · MK4THRUST ×2.22THIRTY-SIXROCKET PROGRAMSHEET01 / 36

The Rocket Program

Every right answer builds a rocket.

Answers earn Funding and fuel. Fill the tank, launch, and spend what you earn on engines, tanks, and guidance. Your skills set the ceiling: mastering tiles on the Board unlocks better parts.

Full practice tests earn Flight Certifications

Finish a full 45-question test under real conditions to certify a deep-space destination, add a permanent +25% to your income, and unlock a legendary part.

  1. Certification 1The MoonLunar Lander
  2. Certification 2MarsIon Drive
  3. Certification 3JupiterNuclear Thermal Engine
  4. Certification 4NeptuneSolar Sail

Desmos mastery

The calculator is on the test. We teach you to win with it.

The online ACT puts a Desmos graphing calculator on screen for every question. Every lesson shows the Desmos way beside the algebra: the exact keystrokes, what to click, and when algebra is faster.

  • Solve a system by clicking where two graphs cross
  • Test answer choices in seconds, not minutes
  • Timed Desmos drills in Launch Prep and review
The Desmos way2 lines · 1 click

Click where the lines cross. The point is your answer: x = 3, y = 4.

The method

Built on how learning actually sticks.

Every feature traces back to research on memory, math learning, and attention.

Read the full method
  • 01

    Retrieval, not rereading

    Quick questions after every idea. Pulling an answer from memory beats reading it again.

    Rowland 2014 · Adesope et al. 2017

  • 02

    Spaced to your test date

    Reviews come back at widening gaps, timed to peak on test day.

    Cepeda et al. 2008

  • 03

    Mixed, like the real test

    Review sets interleave skills, so you learn to spot which tool each question needs.

    Rohrer et al. 2020

  • 04

    Examples that fade

    See it solved, fill in the missing steps, then solve it on your own.

    Barbieri et al. 2023 · Salden et al. 2010

Every question is original.

Written from scratch for today’s ACT: 45 questions in 50 minutes, four choices, Desmos on screen. Every wrong answer is a real, named mistake, and every explanation shows exactly why it’s tempting.

skills
36
lessons
55
full practice tests
4

Your first launch is one lesson away.

Start with Launch Prep: how ACT Math works, Desmos basics, and the strategies that save minutes.

Start Launch Prep