Maths for ages 10 to 16
Maths you can see.
Nobody needs to think they are bad at maths. Ruit shows why something works, lets you see it and lets you do it, with an explanation right when you get stuck.
No ads, no tracking, no account needed. The learning path and the first three topics are free.
Three new exercises every day, the same for everyone. Do today's starter
Try it: slide the numerator and the denominator
How a topic works
First the question, then the picture, then the rule.
Every topic has the same four blocks, always in this order. So you always know where you are.
Why
A question or a picture that makes it necessary. How much pizza does everyone get when there are five of you?
See it
A picture you play with: slide, pick, turn. The idea becomes visible before there is a formula.
Get it
The explanation in plain words, then the rule, and an example worked out step by step.
Do it
Exercises that are checked straight away, with a hint and the solution. And a new exercise every time.
After that you read the typical pitfalls, where you meet it in real life, a bit of history and what to know first or learn next.
Four strands
From fractions to probability.
Number
6 topics
Fractions, percentages, negative numbers, powers and the order of operations.
Algebra
4 topics
Working with letters, equations, ratios and linear functions.
Geometry
4 topics
Angles, perimeter and area, the circle and Pythagoras' theorem.
Data and probability
2 topics
Mean, median and mode, and how likely something is.
Who it is for
For those who learn, help and teach.
For pupils
Start with what you don't get. Play with the picture until you see it, and practise until you feel you can do it. Mistakes are information, not punishment.
Start practisingFor parents
You don't need to remember it all yourself. Every topic explains it the way school does, with a question to talk about together at the table.
Pick a topicFor teachers
Show a picture in class, let pupils practise at their level and print a worksheet with the solutions.
Make a worksheet
For schools
For schools and teachers.
Ruit works in class without fuss: nothing to install, no pupil accounts, and a worksheet is ready in a minute.
Worksheets with the answers
Pick a topic, a level and how many exercises. Print it, with the answers on a separate sheet.
Free for teachers
Through Kaft, teachers use Ruit for free, on the classroom screen too.
No pupil accounts
Pupils practise without logging in. What they have mastered stays on their own device.
Pictures for the board
Every topic has a picture to play with, large enough to look at together in class.
Ruit and Kaft
A fair price, and a family of apps.
Ruit is part of Kaft, the book cover with an app for every subject. No ads and no tracking, so you pay with money, not with your data.
What does Ruit cost?
The learning path and the first 3 topics are free. For all of Ruit, you choose one of these plans:
- All of Ruit€4 a month · €36 a year
- Kaft bundle, all apps€8 a month · €69 a year
There is also a family plan, a school plan and a free social rate.
You sign in and pay on Kaft. After that, one click opens every topic here.
All prices on KaftThe Kaft family
Each app has its own subject and its own look, with the same way of working: understanding over cramming, calm and without ads.
Pick a topic and see it.
Start with fractions, percentages or whatever is on tomorrow's test.