I actually have 3 ideas:

1/2
Previous Costume/Backdrop

previous costume

Well if we have the next costume. Why not this?

3
Math Block

Ask problem () + () and wait

We have the operators but what about a block?
(Great for math projects!)

A boolean for the math block:

<answer correct?>

Decide in the comments!

Almost forgot but… I'm too late.
____________________________________
My signurate

Adding a previous costume block is a duplicate of this topic. Keeping the suggestion in one place helps make the forums tidy.

Couldn’t you just use the “ask and wait” block for the math equation block?

1. You're not meant to create lists of unrelated suggestions.
2. You can check using the equals operator block to see if they typed the correct answer.
3. Previous backdrop already exists in the dropdown of these 2 blocks:


4. Previous costume is a duplicate:
https://scratch.mit.edu/discuss/topic/2793/
You can get it here though (the actual dropdown option isn't implemented, and there's no separate block):
https://scratch.mit.edu/projects/795499122/
The trick used:
https://scratch.mit.edu/projects/784273667/

k7e wrote:

Adding a previous costume block is a duplicate of this topic. Keeping the suggestion in one place helps make the forums tidy.

Couldn’t you just use the “ask and wait” block for the math equation block?

Well it is hard for beginners.

medians wrote:

1. You're not meant to create lists of unrelated suggestions.
2. You can check using the equals operator block to see if they typed the correct answer.
3. Previous backdrop already exists in the dropdown of these 2 blocks:


4. Previous costume is a duplicate:
https://scratch.mit.edu/discuss/topic/2793/
You can get it here though (the actual dropdown option isn't implemented, and there's no separate block):
https://scratch.mit.edu/projects/795499122/
The trick used:
https://scratch.mit.edu/projects/784273667/

It might be because your using scratch 2 because I'm on scratch 3.

medians wrote:

1. You're not meant to create lists of unrelated suggestions.
2. You can check using the equals operator block to see if they typed the correct answer.
3. Previous backdrop already exists in the dropdown of these 2 blocks:


4. Previous costume is a duplicate:
https://scratch.mit.edu/discuss/topic/2793/
You can get it here though (the actual dropdown option isn't implemented, and there's no separate block):
https://scratch.mit.edu/projects/795499122/
The trick used:
https://scratch.mit.edu/projects/784273667/

Also I never seen it.

braylenandsonic32694 wrote:

It might be because your using scratch 2 because I'm on scratch 3.

Yeah, @medians only uses 2.0.

The previous backdrop dropdown option does exist in 3.0.

braylenandsonic32694 wrote:

It might be because your using scratch 2 because I'm on scratch 3.

The options for backdrop appear in Scratch 3.0 as well and they also added a random one in 3.0, try looking at the blocks
Also, the previous costume block never existed, but the functionality was added in 2.0 (so you can do a trick like above)

there's a pretty simple workaround for previous costume.

switch costume to ((costume [number v] :: looks) - (1)

BendyOl183 wrote:

there's a pretty simple workaround for previous costume.

switch costume to ((costume [number v] :: looks) - (1)

that's the first way

go to https://scratch.mit.edu/projects/784273667/ for the second way.