Adobe Flash

Most modern web browsers were updated years ago to support HTML5

and will not need depreciated Adobe Flash for animation, etc purpose.

Adobe still offers their last Flash Player version from their official site here:

• Adobe Flash Player Download | get.adobe

https://get.adobe.com/flashplayer/

• Mac OS X v10.10 or later
• Latest versions of Mozilla Firefox, Google Chrome, and Opera

Depending on your browser, the main download may offer (look) another

version to run, in Safari (??) The information links from this page:

https://www.adobe.com/products/flashplayer/tech-specs.html

Any other source may be defective or contain malware surprises.

Good luck & happy computing!🌞⛵️

You have to install it first:

https://adobe-flash-player.en.softonic.com/mac/download

But why would you want it when it's marked as end-of-life?

https://www.adobe.com/products/flashplayer/end-of-life.html

You've got 2 months. What good is that?

Adobe announced all support for their Flash Player product would be ending three years ago. It will not work on any platform anywhere.

Your school needs to find other options. They should have done that a long time ago.