You use those 4 crafting boxes to make a crafting table. To make one, you need 4 wooden planks from a log, then put them in each of the 4 boxes.
By crafting 4 sand and 5 gunpowder with a crafting table
4 wooden planks
Press the "i" key, the inventory should come up, near the top you'll see for boxes, here you can craft stuff, if you put one would plank in each of the crafting boxes, you can craft a crafting table, which allows you to craft more stuff that you not be able to craft using the four boxes in your inventory. After version 1.4 was released, some of the hotkeys changed. Now you have to press "e" and not "i" to open the inventory with the crafting.
4 wooden planks in a square pattern
You can't. Unless you're talking about the inventory crafting table. To make a bigger one of that, you use 4 wood planks in the inventory crafting to make a crafting table. There, it gives you a 3X3 grid.
Make a crafting bench\table using 4 pieces of woodplanks, place it in the world, and right click on it to get a 3x3 board. There you can place different objects in a way to get a tool. You can find crafting recepies on minecraft wikis.
Simply combine 4 Stone(the smooth version, not cobblestone) in a square in either the crafting slot on your player or a crafting table to make stone bricks.
I dont really know what you mean with this question, if you mean how to you make a crafting table in Minecraft Pocket Edition, it cant be done. The Minecraft on your iPhone is only in alpha version, which means that craft hasnt been invented yet.
To make an enchantment table in Minecraft you need a crafting table, 4 obsidian, 2 diamonds, and 1 book. Right click on the crafting table and place the items on the crafting grid as follows: B = book O = obsidian D = diamonds # = empty space #B# DOD OOO
You get 4 iron ingots and put two on each bottom side of your crafting table.
I assume you mean a chest. Well, first you must craft a crafting table (4 wood planks filling up your inventory). Then place the crafting table down and right click on it. You now have a 3x3 crafting area. Place wood planks in all boxes except the center one. You now have a chest! You can make 2 chests and then place them down next to each other. This creates a large chest that holds more things.
smelt clay to make bricks and put 4 bricks in a small 2x2 square on a crafting table