My account

Your account, with one email

No password, no sign-up form. You enter your address, you receive a six-digit code, you type it here: if you have no account yet, the code creates it; if you already have one, it signs you back in. Or in one click with your Google account.

What is it for?

Self-checked exercises, with points. You type your answer, the page says right or wrong and names the trap. 10 points per answer right on the first try.
A day-by-day plan before the exam. You note the date and the chapters of your test or midterm: your dashboard tells you each day where to start.
A notebook of your own traps. Every answer missed on the first try lands there, with the trap behind it. Before the exam, you reread your own mistakes.
Your progress, chapter by chapter. A check of one question per chapter sorts what you already know, and the site tells you which chapter to tackle next.
Ask for what is missing. A missing exercise, a mistake in a solution: say so at the bottom of the page, and hear back when it is added.
Pick up where you left off. Done or to review, your ticks and your right answers follow you from phone to laptop.
One email, no password. No name, no school, no phone number: your address is enough.
One account, several profiles. A parent keeps a single account, with one space per child.

Nothing is locked behind sign-up: the whole site stays open without an account.

A preview of your account

This is what your dashboard shows after a few sessions. The example is a McGill student in MATH 140 with a midterm coming up.

Example

310points 31 answers right on the first try

Midterm · MATH 140, Calculus 1

In 12 days

5 chapters

2 mastered1 passed the check1 in progress1 to work on

2 chapters to prepare in 12 days: one every 6 days is enough.

Today

Go back to Limits and the limit laws: exercise 1 is marked to review.

Your courses

MATH 140, Calculus 1

2 mastered2 passed the check2 in progress2 to work on4 not started12 chapters

My traps

2 to beat

The chain rule · Ex. 1 a)

The inner derivative $6x$ multiplies the whole power.
Limits and the limit laws · Ex. 1 a)

The limit ignores the value $f(-2) = 3$ .

Create my account

Free, with one email address. Everything on the site stays open without an account.