Follow these steps to get set up. The whole process takes about 5 minutes.
Launch Minecraft: Java Edition. From the main menu, click Multiplayer, then click Add Server in the bottom right.
In the Server Address field, type the address below exactly. The server name can be anything you want.
Click Done to save the server, then select it from your server list and click Join Server.
When you first join, you'll spawn in a locked area with a prompt on screen. Type your @mosesbrown.org email address in the chat. A verification code will be emailed to you — type that code in chat to confirm your identity.
After verification you'll appear on the hub spawn island. From there you can:
/play to go to the survival world/play in chat, right-click the compass in your inventory and choose "Play", or walk through the portal on the spawn island.