100 Top Tips: Microsoft Excel
Power up your Microsoft Excel skills with this powerful pocket-sized book of tips that will save you time and help you learn more from your spreadsheets.
If you saw my 9-block program to draw a polygon in Scratch, you might be wondering how to draw a circle in Scratch.
The answer is to think of a circle as a shape with 360 sides, and 360 angles of 1 degree, like this:
When using the polygon program, you might have noticed that the more sides you have, the more like a circle it looks. In practice, you don't need as many as 360 sides to make it look like a circle on the Scratch screen. You can have 90 sides, move 4 steps, and turn 4 degrees to create a circle more quickly, for example.
To increase the size of the circle, change the number of steps the sprite moves.
Feel free to share that program card on your social networks, or to use it in your classrooms or Code Clubs!
© Sean McManus. All rights reserved.
Visit www.sean.co.uk for free chapters from Sean's coding books (including Mission Python, Scratch Programming in Easy Steps and Coder Academy) and more!
This book, now fully updated for Scratch 3, will take you from the basics of the Scratch language into the depths of its more advanced features. A great way to start programming.
Code a space adventure game in this Python programming book published by No Starch Press.
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Set up your Raspberry Pi, then learn how to use the Linux command line, Scratch, Python, Sonic Pi, Minecraft and electronics projects with it.
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Tips, tutorials and free book chapters for Scratch, a coding language widely used in schools.