MathExplain Like I'm 5Intermediate
Canadian High School Math Assessments, a free math course on Tomo

Canadian High School Math Assessments

Build the applied problem-solving, modeling, and communication skills tested on provincial high school math and numeracy exams. Learn how to unpack dense contextual prompts, tackle high-yield algebra and geometry scenarios, and write rubric-ready justifications.

Like Duolingo, but for Canadian High School Math Assessments. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

23 levels across 3 sections, about 46 minutes end to end, roughly 9 days at five minutes a day. It moves through Deconstructing Context-Heavy Prompts; High-Yield Modeling Archetypes; and Data Critique, Justification, and Verification. It assumes you already know the basics.

23 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Cal the Caribou, the guide who teaches the Canadian High School Math Assessments course
Canadian High School Math Assessments
with Cal the Caribou
23
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in Canadian High School Math Assessments

  • Decorative backstory numbers like vintage years do not constrain rates or totals.
  • Batch yield rates and hourly work shifts define proportional equations.
  • Per-unit packaging costs establish fixed linear slope parameters.
  • Real-world indivisible items require integer domain restrictions.
  • Capacity thresholds turn fractional solutions into ceiling function minimums.
  • Inequality bounds dictate that partial groups still require a whole additional unit.
  • Naming the terminal target prevents stopping at an intermediate sub-total.
  • Defining a target equation sets an algebraic finish line before computing steps.
  • Intermediate values like gross revenue must be nested inside the terminal variable formula.
  • Partitioning a continuous whole into fractional segments maps to tape diagrams.
  • Shared population subsets require intersecting region diagrams.
  • Distance, rate, and positional convergence map directly to signed number lines.
  • Units in numerators only cancel when multiplied by identical units placed in the denominator.
  • Inverting a conversion fraction flips the target unit into the wrong algebraic position.
  • A valid conversion fraction must mathematically equal one despite having different units.
  • Compound rates require isolating numerator and denominator conversions into distinct algebraic steps.
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Canadian High School Math Assessments the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Spotting Real Clues in Word Problems

A baker makes 12 bagels per batch. What kind of relationship connects batches to total bagels?

Get it right to open this lesson and 22 more in the app.

Course map

Where Canadian High School Math Assessments takes you

  1. 1

    Deconstructing Context-Heavy Prompts

    • Translating Scenario Prompts into Math
    • Dimensional Analysis and Scale
  2. 2

    High-Yield Modeling Archetypes

    • Linear Systems and Rate Modeling
    • Applied Measurement and Geometry
    • Financial Mathematics and Growth
  3. 3

    Data Critique, Justification, and Verification

    • Evaluating Statistical Claims and Charts
    • Writing Rubric-Scored Justifications
    • Sanity Checking and Error Trapping

3 sections · 8 units · 23 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
Explain Like I'm 5

Canadian High School Math Assessments is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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