Math Whiteboard

Teach with Math Whiteboard: draw on PDF, share online lessons and use collaborative drawing with your students.

Math Whiteboard brings a teacher and a student onto the same drawing surface for online lessons. Explain a calculation, mark a worksheet or build a diagram together. This online math whiteboard keeps written explanations beside the material you are discussing, throughout the lesson. Start a lesson with the math whiteboard 1. Open the extension, create a teacher account or sign in, then choose a board. 2. Create an invitation and send its link to your student. 3. Choose whether the student can draw or only view the material. The student opens the link in a browser and enters a name; installing the extension or creating a student account is unnecessary. Use a math whiteboard app for everyday explanations - Write with the pen or highlight a detail using the translucent marker. - Set a colour and stroke width before drawing. - Add text, lines, arrows, rectangles and circles. - Select and move objects, or remove a drawing with the eraser. The grid gives handwritten examples a consistent background without forcing your work into a template. Use the math whiteboard online to explain a worksheet • Insert a PDF through the context menu and place it where you need it. • Add more documents or images to the same surface. • Resize a document frame and move it together with its attached marks. • Draw on PDF pages while keeping other notes around the document. This approach to PDF annotation makes it possible to show both the original task and your explanation. Use this online annotation tool to turn pages without losing the context. Each document has its own page controls, including arrows and a page-number field. The teacher changes the active page, and the student follows that change. Marks belong to the page on which they were made; surrounding drawings remain visible. Use the math whiteboard online to revisit an earlier example before continuing the exercise. Work together with clear permissions ➤ Give a student drawing access when you want them to show a solution. ➤ Switch an invitation to view-only when you are presenting. ➤ Revoke a link when its access should end. Completed actions and page changes are shared, and named cursors help participants follow each other. A shared whiteboard supports collaborative drawing and discussion while the teacher remains in control of invitations. Plan a lesson around the task 📄 Annotate PDF worksheets and point out the next step. ✏️ Try collaborative drawing to compare two ways of solving a problem. 📐 Use arrows and simple shapes for a geometry explanation. 📝 Keep short written notes next to an image or document. This whiteboard for teachers can support a focused tutoring session without asking the learner to install another extension. A mathematics whiteboard gives you a virtual whiteboard with room to think. Pan across the large workspace, use the hand tool and change your zoom to inspect a small detail or see the board as a whole. Each participant controls their own zoom. Your math whiteboard stays shared even when the teacher and student look at the same work at different scales. Return to earlier work in your whiteboard app. Boards and their active materials are saved by the connected service. You can reopen a board for a later lesson and continue from the stored state. Use a separate board for another topic rather than clearing an explanation you want to keep. This collaborative whiteboard requires a working connection to that service for shared sessions and saving. Correct your own drawing steps with undo and redo. The math whiteboard takes other participants' later changes into account instead of replacing the whole session with an earlier snapshot. Removing PDF frames or images is different: deleted materials cannot be brought back through undo. Keep a document you still need on the surface. Questions before you start Does the student need an account? No: an invitation link and a display name are enough. Can I edit the original text inside a PDF? No. You can annotate PDF pages with drawings and notes; this is not a document text editor or converter. Does everyone control page navigation? The teacher switches PDF pages; zoom is independent for each participant. The math whiteboard accepts PDF documents up to 25 MB and 100 pages, and PNG, JPEG or WebP images up to 2 MB. Storage limits also apply to the teacher's saved materials. The editor interface is currently in Russian; these limits and access requirements apply regardless of the listing language. Choose Math Whiteboard when your lesson needs a common place for handwritten reasoning, documents and discussion. Use the online drawing board to explain each step and annotate PDF worksheets together, then leave the work ready for your next session.