--- title: "Eddy's blackboard draws while it talks | DuckyHelper" url: "https://duckyhelper.com/features/blackboard/" description: "Eddy works it out on a blackboard, writing and drawing step by step in time with its voice, then gives you a your-turn and checks your answer." updated: "2026-10-09" --- Eddy, in the Mac app # Eddy's blackboard draws while it talks Open Blackboard in Eddy, ask what you want worked out, and Eddy explains on a dark board the way a tutor would: it writes and draws step by step, each line appearing as its voice reaches it. Then it hands you a your-turn question and checks your answer. It is in the Eddy tab of the DuckyHelper Mac app. [Download for Mac](https://duckyhelper.com/download/)[See every feature](https://duckyhelper.com/features/) Step by step ## Written as it's said. Eddy does not paste a finished answer onto the board. Each step, label and arrow appears as Eddy says it, so you follow the thinking, not just the result: count each kind of atom, make both sides match, never change the subscripts. [Guide: The blackboard](https://docs.duckyhelper.com/eddy/blackboard/) Open it your way Blackboard on Eddy's start page, or Cmd + K. Eddy asks: what should Eddy explain on the blackboard? Or let Eddy pick With Eddy picks on, Eddy reaches for the board by itself when something needs working out. It stays in your lesson The board is kept in the lesson's rail, so you can look back at it, and in History, so you can replay the whole lesson. Your turn ## Then it's your turn. When the board is done, Eddy asks you something that uses it, like how many hydrogen atoms are in two water molecules. Answer out loud or type it, and Eddy checks it and tells you why. Get it wrong and you get a hint, not the answer. Board or picture ## Eddy picks the right way to show it. Some things are worked out, some are seen. With Eddy picks on, Eddy reaches for the board for a method and for a picture with labels for a thing, like why the sky is blue. The chip at the left of the bar lets you choose yourself: Just words, Look it up, A picture or A scene. [Pictures you can ask about](https://duckyhelper.com/features/pictures/) Fill the desktop Want the board bigger? Fill the desktop turns it into a full scene and it keeps drawing. Back to the desktop, or Escape, brings it back. World World on the start page opens a lesson as a full scene from the start. ## Ask. Watch it worked out. Try it. How a blackboard lesson goes. 1. 1. Open Blackboard On Eddy's start page, or Cmd + K. 2. 2. Say what to work out How do I balance H2 + O2 to H2O? Ask out loud. 3. 3. Eddy writes it as it talks Step by step, in time with its voice. 4. 4. Your turn Answer Eddy's question and it checks you. Eddy runs in the Eddy tab of the Mac app's dashboard. ## Draw it as you explain. A diagram that builds while you hear the words is easier to follow than either one alone, which is why a good tutor reaches for the board. On a Mac, Ducky does the same on your own screen. The learning science behind it: [Draw it as you explain](https://duckyhelper.com/research/principles/draw-it-as-you-explain/). Eddy tab Mac app [Ducky draws on your real screen](https://duckyhelper.com/features/screen-pen/) ## How to use it ## Frequently asked questions ### Is there an AI tutor that draws diagrams while it explains? Yes. Eddy, the tutor in the DuckyHelper Mac app's Eddy tab, explains on a blackboard and writes and draws each step in time with its voice. It also shows pictures with labels drawn on as it names each part. On a Mac, Ducky draws right on your own screen. ### How do I open the blackboard? Click Blackboard on Eddy's start page, or press Cmd + K. Eddy asks what to explain. With Eddy picks on, Eddy also opens the board by itself when a question needs working out. ### What subjects does the blackboard work for? Anything that is easier worked out step by step: balancing equations, fractions, algebra, physics problems, a timeline of causes, the structure of an essay. For things you need to see, like the inside of a leaf, Eddy shows a picture with labels instead. ### Does it work on a school Chromebook? Not right now: DuckyHelper is a Mac app (macOS 14 or later, Apple silicon), and the blackboard is in its Eddy tab. There is no Chromebook or web version. On a Mac, if the microphone is blocked, the app says what to turn on. ### Can I watch a blackboard lesson again? Yes. Every board stays in its lesson, and History keeps your Eddy lessons to replay exactly as they happened, at 1x, 1.5x or 2x. [Watch any lesson again](https://duckyhelper.com/features/replays/) explains how long they are kept. ## More features ### A picture made for your question, labelled as Eddy explains; tap any part to ask about it Ask Eddy to show you and a picture made for your question comes into focus, labelled as Eddy explains. Tap any part to ask about it, or change it. ### Wikipedia, books and science pages in a clean reader; Eddy quotes only what it read, with numbered sources Read Wikipedia, classic books and science pages with Eddy in a clean reader. Eddy quotes only paragraphs it read, with numbered sources, and reads aloud. ### Open a PDF, Word file, slides or a photo of your homework; Eddy hints beside the question and checks your answer Open your worksheet, slides or a photo of your homework in Eddy. You both see the same page; Eddy writes a hint beside the question and checks your answer. ### Replay any Eddy lesson exactly as it happened, at any speed, then pick it up again Replay any Eddy lesson from History exactly as it happened, at 1x, 1.5x or 2x, then ask Eddy about it and pick up from there. Your own voice is never kept. ### Eddy opens a page in a tab and points, highlights, scrolls and clicks where you can watch Ask Eddy to open a site and it opens in a tab where Eddy points, highlights, scrolls and clicks with its own cursor while you watch. School sites work too. ### Write your working and get it checked line by line, or answer a quick check on Eddy's whiteboard Write your working and DuckyHelper checks it: the first wrong line marked with why on a Mac, and Eddy's whiteboard for a quick drawing or check. ## Keep reading ### Eddy: the voice tutor in the DuckyHelper Mac app's Eddy tab Eddy is the voice tutor in the DuckyHelper Mac app: talk out loud and it teaches on a blackboard, with labelled pictures, quizzes and your own homework file. ### Math: worked steps, moving graphs, and hints before the answer An AI math tutor that explains one move at a time: worked steps, graphs you can move, hints before answers. In the Mac app, right over your homework. ## Watch something worked out Open the Eddy tab in the Mac app, press Blackboard and ask. [Download for Mac](https://duckyhelper.com/download/) [See what it does](https://duckyhelper.com/features/) The Mac app needs Apple silicon and macOS 14 Sonoma or later. There is no Chromebook, Windows or web version right now.