Free lesson · 7th grade · age 12
A free dinosaur math lesson: 7th Grade Ratios & Proportions
dinosaurs
This is a free, playable 7th Grade Ratios & Proportions lesson for a kid who loves dinosaurs: "Ratios, Meet the Fossil Dig". It runs in the same interactive player a subscriber's kid uses, with teaching steps, checks they can retry, a mini-game, and a printable worksheet. Add your kid's name and it is woven in, no sign-up.
Every fossil dig is secretly full of ratios: plaster to water, batches to mix. Your child starts here by learning how to write and read a ratio, then figures out what makes two ratios 'the same' by scaling a plaster mix up to protect a whole pile of dinosaur bones and down to a half batch for one tiny tooth. This is where the course's dinosaur thread begins, one that keeps growing all the way to equations, graphs, and museum fundraiser pricing.
It is lesson 1 of an 8-lesson course on the standard 7th grade sequence, which continues with "Unit Rates: Finding the Better Deal", "Is This Actually Proportional?", "The Dinosaur's Footprint: y = kx". When you subscribe, your own kid's full course is written around their interests and starts with a quick check of what they already know.
Free to play, no sign-up · your own kid's course comes with Family, $49/mo
Where the full course goes
Lesson 1 is free to play right now. The rest is the standard 7th grade sequence a subscriber's course follows, written around their own kid.
- Ratios, Meet the Fossil Digfree now
- Unit Rates: Finding the Better Dealfull course
- Is This Actually Proportional?full course
- The Dinosaur's Footprint: y = kxfull course
- Graphing the Line Through the Originfull course
- Checkpoint: Ratios at the Dig Sitefull course
- Scale It Up: Maps, Plans & Blueprintsfull course
- Percents: Pricing the Museum Fundraiserfull course
Middle school is where ratios, negative numbers, and early algebra either click or calcify. These samples rebuild each concept inside an interest the kid picked, so the worked examples feel like theirs instead of a textbook's.
Questions parents ask
Is this a real lesson?
Yes. It is a complete, playable 7th Grade Ratios & Proportions lesson built around dinosaurs, in the same player a subscriber's kid uses, with a printable worksheet. The later lessons of the course are shown as an outline; a subscriber's course writes all of them around their own kid.
How does the personalization actually work?
You tell Mathbloom your kid's age, the math they need, and a few interests. The course is then generated fresh for them: the sequence of lessons follows real 7th grade standards, while the examples, word problems, diagrams, and humor are built from their interests, with their name woven through. This page's sample shows what that looks like when the interest is dinosaurs.
How much practice is there?
Each skill mints fresh problems on demand, so practice never runs out and no two attempts look the same. Right after a lesson introduces a skill, a short loop keeps going until your kid gets three in a row, then the same idea comes back later for review, on a widening schedule, across the whole 7th Grade Ratios & Proportions course.
What if my kid is ahead, or behind?
An optional quiz before lesson 1 checks that first, using fresh problems from the same library the lessons draw from, nothing graded. A gap from an earlier grade adds a short Foundations lesson to the front of the course. A skill they already have gets marked done and skipped, recorded honestly instead of repeated. Either way, the first lessons in the 7th Grade Ratios & Proportions course are written to what the quiz finds, not a guess.
What does it cost?
Playing this sample is free, no sign-up. A full membership is the Family plan at $49/mo for up to 3 kids, each with their own generated courses, cancel anytime. Tutors and co-ops can run up to 10 learners on Studio at $199/mo.
Is it aligned to grade level?
The sample follows the standard 7th grade scope, and generated courses are built on real grade-level standards with named mastery objectives per lesson. A kid who is ahead or behind simply starts at the level that matches where they are, not their grade label.
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