ED Cat shows each line being drawn, tells you its exact length and the pencil to use, and explains why. Points, lines, projections and more, from Sheet 1 to Sheet 4.
Built for the way students actually learn drawing: watch it, understand it, then try it.
Photograph a question or type it. The app reads the numbers and asks you to confirm them. No guessing.
Watch a real pencil, ruler and compass draw every line slowly, with the length shown as it grows.
Every step shows how long each line is, the calculation behind it, and which pencil (H, 2H, 3H, 4H) to use.
A short plan before the first line: what is given, what to find and which formula to use.
Tap the right points yourself. The cat tells you instantly if you are correct.
Same question with fresh numbers, so you learn the method and not the answer.
All your questions placed on a neat sheet with title block, ready to download as a PDF.
Earn XP as you finish questions. Your cat gets glasses, a cap, a scarf and a crown.
From question to finished sheet in four steps.
Create your account in seconds with your email.
Scan it, type it, or choose from the sheet list.
Follow the animated lesson at your own speed, with the cat explaining.
Copy it on your sheet at 1:1, or download the finished sheet PDF.
Sheet 1 types of lines, Sheet 2 points and lines, Sheet 3 true lengths and inclinations, Sheet 4 lines inclined to both planes.
Free for students. Takes less than a minute to start.
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