The classic D&D module B1 In Search Of The Unknown by Mike Carr is explicitly an introductory/teaching module for new players*. In the introduction, Carr wrote:

The dungeon includes a good assortment of typical features which players can learn to expect, including some interesting tricks and traps:
a) Several one-way secret doors
b) Illusions and magic mouths
c) A wind corridor which may extinguish torches and open flames
d) A room of mysterious pools
e) A room of doors
f) A water pit trap which suddenly drops adventurers to the lower level
g) A portcullis trap where vertical bars drop behind the party in a dead end corridor
h) A pair of teleport rooms to confuse explorers
i) Several magical treasures - most benefecial, some cursed
j) Mysterious containers with a variety of contents for examination

From the end of September until the beginning of November, we're going to write adventures for tabletop roleplaying games that make use of that list of features.

The rules in brief:

• Use the features from B1 listed above in whatever way you want.
• Adventures, not systems. Don't make a new game - make something for a game that already exists. 
• Tabletop RPG adventures only.
• No Nazis, terfs, bigots, etc. You'll be booted. If you have to ask if this includes you then it does.
• Charge whatever you want for your work. You deserve to get paid. #

Write adventures for whatever game you want, or make them system neutral. Hex crawls, point crawls, dungeons, whatever. If you're writing for a system with strict licensing requirements *cough 5e cough* then it's up to you to make sure everything you do follows those rules.

Resources

You can use the generator here to make a title.

Need more inspiration? Nate Treme also has generators for your BBEG and some NPCs.

Have fun!

Curious about why this is called "Adventure Jam 2"? Check out my first adventure jam here.

*This word include GMs because GMs are also players.