Use scratch to create a custom block

What can I use if I can't access Scratch online or the Make a Block feature?

If you can't access the online editor or the 'Make a Block' button, install the Scratch 3.0 offline editor or simulate a custom block by creating a helper sprite that runs the repeated code when it receives a broadcast message, and upload an image from your computer instead of using the Paint Editor for the 'Choose or paint a sprite' step.

My custom block doesn't seem to do anything when I click the green flag—what should I check?

Check that you actually dragged code into the 'define my block' area, that you placed the 'my block' reporter into the Scripts area with a test parameter value, and that the script calling 'my block' is connected to a start block like the green flag or another event.

How can I adapt this custom block activity for different ages?

For younger kids use a single simple parameter like 'n' and let them drag basic motion or looks blocks into 'define my block', for middle grades add a color or number parameter and testing step, and for older kids require multiple parameters, loops, broadcasts or cloning inside 'define my block' and have them save and share the project on DIY.org.

How can we extend or personalize our custom block after making it?

Extend it by adding extra input parameters (for color, speed, or count), changing the sprite's costumes or adding sound blocks inside the 'define my block' code, reusing the custom block across multiple sprites to simplify scripts, and then save and share the finished project on DIY.org.