Scratch-gui: Trouble with nesting ifs

[ericrosenbaum]

In play tests we have seen multiple instances of kids making errors like this one, in which an if block is unintentionally nested inside another if block (it should be a sequence of two separate if statements):

Maybe the nesting could be visually clearer somehow, to make the fact that the blocks are nested more obvious.

[mrjacobbloom]

Zebra striping a la Snap!

[towerofnix]

Indeed, zebra striping makes it very clear when you aren't following a screenshot or video correctly!

[jwzimmer]

I also saw confusion around control loops during the Catch Game External Playtest (June 2017):

• Distinguishing forever, if, and if else in the blocks menu
• At least 2 users were confused due to nested instead of sequential "if" loops as in @ericrosenbaum's screenshot
• A user didn’t realize they needed to wrap an if statement in a forever statement to get the stack to trigger every time the if statement was true

[chrisgarrity]

Moved to LLK/observations#19