The End is a world unlike the Overworld. It is dark and scary. It has a dragon! You should try it some time. Click on this link if you want to know more about the End.
Minecraft homeschool is a fun thing I do sometimes. You usually learn a history lesson every week. You also have assigned work to build something like the lesson. There are also some fun maps, too. If you want to try it you have to sign up for a session that lasts several weeks. You can click on it on the link in the menu, or here.
A Redstone block is a power source that emits power when you place it. To craft a Redstone block fill every space of the crafting grid with Redstone. It will be useful in your worlds. This is how to craft any kind of block! Just follow this pattern with *some kinds of materials and it might make a block. *note use only one kind of material. Happy crafting!