Mastery-Based Learning
Mastery-based practice worksheets
In mastery-based learning, a child moves on when they've got it — not when the calendar says so. That only works if the practice in front of them matches where they really are, which a grade-labeled workbook rarely does.
5 worksheets and 5 differentiations free every month

Level by skill, not by birthday
A nine-year-old can be doing sixth-grade math and third-grade spelling. Workbooks sold by grade force you to pick one number for the whole child. Here you choose the level each time you make a worksheet, so math, reading, and vocabulary can each sit exactly where that child is working — and move independently as each one improves.
Find the right level fast
Make a worksheet at your best guess, then click once for an easier and a harder version of the same material. If the standard page is a struggle, the easier one is already there; if it's too simple, the challenge version is. That saves the usual cycle of buying the wrong workbook, or writing a second sheet the night before.
Practice until it's solid
Mastery needs more practice than a single page, and fresh practice rather than the same page twice. Generate another worksheet on the same skill with different questions whenever you need it. Answer keys come with every version, and most types explain why the answer is right, so a child working on their own can check their work and see where they went wrong.
What it is not
There is no placement test, no progress tracking, and no algorithm deciding when to advance — you make that call, which in a mastery approach is usually the point. It produces printable worksheets, not interactive drills or flashcards. And levels are expressed as school grades from kindergarten through twelfth, so you'll pick a grade as a stand-in for difficulty.
Questions
Common questions
How do I know which level to start at?
Start with your best guess and generate the three versions. Whichever one your child can do with some effort, but without frustration, is the right level for now.
Can I keep practicing the same skill?
Yes. Each new worksheet on the same topic comes out with different questions, so you can keep practicing a skill without repeating a page.
Does it track progress?
No. Every worksheet is saved to your library, but there is no scoring or tracking. You decide when a skill is solid enough to move on.
How much does it cost?
Free for five worksheets and five differentiations a month, no card required. Pro is $9.99 a month with a seven-day trial for unlimited use.
Get Started
Try it on your next lesson.
Create a worksheet in about thirty seconds and see the differentiated versions for yourself. No credit card, and the free plan stays free.
Create Your First Worksheet