If you know how to compile the source tree, you can start testing RandomX in monerod now.
https://github.com/monero-project/monero/pull/5549The easiest way to run it is with your own private testnet. I started with a node that was fully sync'd to the live testnet, and then ran it privately after that.
If you could give a ELI5 rundown of RandomX for the class here or a link to one that would be cool.