TangentA board you share live
See each other's writing as it happens. Explain a solution, invite a student to try a step, or work through a question together.
A shared whiteboard for teachers & tutors
Big ideas.
A little space to
work them out.
Teach, sketch and solve together on the same board. Bring your worksheets, pick up your Pencil and make every step of the lesson visible.
3 free boards. In your browser, or on iPhone and iPad with the free app.
TSWorking it out together
Algebra · Lesson 01 Shared boardSame board. Same moment.
Explain a step, then give your student the pen.
Illustrative lesson preview
Built around the lessonLess switching tabs.
Less switching tabs.
More “I get it now.”
Your writing, worksheets and shared tools, all in one place.
Your worksheets, ready
Attach images and PDFs, or paste an image from your clipboard. Move, resize and write directly over your materials.
Made for your Pencil
Write naturally on iPad with Apple Pencil. Use pen, highlighter and eraser tools, or join from a browser with a mouse or finger.
Work the numbers together
Open a scientific or graphing calculator on the board. Participants can take control in turn while everyone follows along.
A classroom conversation
Students can raise a hand or ask in chat. With Tangent Pro, bring the conversation onto the board with built-in video calls.
Keep the working
Add pages for new questions, or extend a page when you need more room. Save your board and export the lesson as PDF or PNG.
Works with Integrand
Bring in questions from Integrand.
Teaching A-Level Maths? Pull questions straight from the Integrand H1 and H2 Maths question banks onto your board, then work through them live with your student.
H2 MathsH1 MathsH2 Further Maths · soonH3 Maths · soon
- Tap Add question from Integrand in the toolbar, or paste an Integrand question link onto the board.
- Pick questions from H2 Maths by chapter, difficulty and source, or from H1 Maths by topic, up to ten at a time. You sign in with your own Integrand account.
- They appear on your board as the original question, ready to annotate, with a card that opens the question in Integrand.
Integrand questions need an Integrand account, and H1 questions need H1 Maths on it. H2 Further Maths and H3 Maths follow when Integrand publishes them. Works on the web and in the iPad and iPhone app.
Now on the App Store
Free to download. Tangent Pro and Class are optional.
Tangent for iPad and iPhone.
The same boards, with your Apple Pencil at its best: pressure-sensitive ink, double-tap to switch to the eraser, and invite links that open straight in the app. Your boards sync between the app and the browser.
Free to download. Tangent Pro and Class are optional.
From question to conversation
Your next lesson starts here.
Create your space
Sign in with Google or Apple and create a board. Start with a blank canvas or attach the question you're teaching.
Invite your students
Share a private invitation link or room ID. Students can join as guests; you grant drawing access in the People panel.
Think out loud, together
Write, annotate and explore. Add another page when the question changes, then export the working for later.
Room to growStart free.
Start free.
Make room for more.
Students join your boards and calls for free.
Tangent Free
A place to begin.
For working through ideas and trying your first shared lessons.
- Up to 3 boards you own
- Live writing and worksheet annotation
- Shared calculators, chat and raise hand
- PDF and PNG export, Replay and lesson recaps
Free
Create your first board Tangent Pro
For your teaching day.
More boards and built-in calls for teachers and tutors.
- Everything in Tangent Free
- Up to 50 boards you own
- Built-in video or audio-only calls on your boards
- 3,000 participant-minutes each month; audio-only calls go four times as far
S$29.98 / monthor S$299.80 a year (two months free)
Get Pro Tangent Class
For group lessons.
For tutors with full timetables and centres teaching groups.
- Everything in Tangent Pro
- Up to 200 boards you own
- 8,000 participant-minutes each month; audio-only calls go four times as far
- Room for group classes and back-to-back lessons
S$79.98 / monthor S$799.80 a year (two months free)
Get Class Prices in Singapore dollars, including GST. Students join your boards and calls for free. In the iOS app, Apple shows your local price before you pay. Cancel any time.
Questions before you start?
Do students need an account?
Students can join using a room ID or invitation link as guests. The board owner grants drawing permission from the People panel. Sign in with Google or Apple to save and manage your own boards.
Can I use Tangent on an iPad?
Yes. Get the free Tangent app on the App Store for iPad and iPhone, with Apple Pencil pressure, double-tap to switch to the eraser and squeeze on Pencil Pro. Tangent also works in any browser, with a mouse or finger too.
Can I use questions from Integrand?
Yes. Tap Add question from Integrand on the board (or paste an Integrand question link) and choose questions from the Integrand H1 or H2 Maths question bank, signed in with your own Integrand account. H2 Further Maths and H3 Maths follow when Integrand publishes them. The original question goes on your board for you to annotate, with a card that opens it in Integrand.
Can I write on a PDF or worksheet?
Yes. Attach a PDF or image, or paste a copied image directly onto the board. Use the selection tool to move and resize it, then annotate it with the writing tools.
How do shared calculators work?
Open a scientific or graphing calculator on the canvas. Other participants can see it and take control in turn, so you can demonstrate a calculation and then let a student try.
Who controls access to the board?
The owner manages drawing permissions and chat, and can lower raised hands. Reporting and blocking controls are available for shared content and participants. Keep room IDs and invitation links private and share them only with intended participants.
What is a participant-minute?
It is one minute of video call time for one participant. A 30-minute call with a teacher and one student uses 60 participant-minutes. Tangent Pro includes 3,000 participant-minutes each month and Tangent Class 8,000. Audio-only calls count a quarter, so they go four times as far.
Can I keep a copy after the lesson?
Yes. Sign in to return to your saved boards, and use Export PDF/PNG to download your working after a lesson.
One board. Plenty of possibilities.
Bring your next question.
A blank canvas, a worksheet, a tricky step.
There's room to work it out together.