Teaching a class?
Using these exercises in class
Every topic here is free to use with your students, on screen or on paper. No account needed.
Project an exercise
Open a topic and press ▶ Class mode on any exercise. It shows one question at a time in large type, and the answer stays hidden until you reveal it.
Keys: ← → move · R reveals the answer · Q shows the QR code · Esc leaves
Students on their phones
In class mode, press Q for a QR code: students scan it and do the same exercise on their phones, with instant feedback. Or press 🔗 Copy link on the exercise and share it in your class chat.
A second round
⇄ Shuffle changes the order of the questions, so doing it again isn't a memory test.
Print it
Every topic has a free printable worksheet: the exercises with gaps and lines to write on, and an answer key with explanations on a separate page. We ask for your email once.
Not sure of your students' level? Send them the level test: it adapts to their answers and suggests topics to practise.
You can use everything here with your own classes; please don't resell it. Details in the terms.