Construct an Enchantment Table.

Catch and cook a fish!

Use planks and sticks to make a sword.

Relieve a Blaze of its rod.

Befriend five wolves.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Construct a furnace out of eight cobblestone blocks.

Acquire diamonds with your iron tools.

Smelt an iron ingot.

Use planks and sticks to make a hoe.

Craft a workbench with four blocks of wooden planks.

Punch a tree until the block of wood pops out.