FF7 Beginner's Hall(Materia Troop) - LN1's Words

-Growth Materia
I think there should be an 'of' in between. Missing prepositions aside, most Materia grows with AP. Once it gets enough AP, it levels up, and if it levels up to all of its stars then it is mastered. Mastered Materia gives birth to a new copy. Materia will gain the AP that you get in a battle if it was equipped to anyone who fought(and didn't end knocked out I believe).
-Kinds of Materia
Green Materia is Magic and allows you to use spells. Red Materia is Summon and allows you to use summons. Pink Materia is Independent and applies effects to your character (like +HP or Cover) and doesn't connect to other Materia. Blue Materia is support and will affect the Materia it is connected to (e.g.: All gives MT to the Magic you connect it to.). Yellow Materia is Command and gives your characters additional commands to do in battle like Steal or Sense.
-Combinations of Materia
Mainly Support with other Materia. Right now we only have 2 Support Materia: All and Elemental. All gives Magic MT abilities, while Elemental applies element to your weapon's physical attack or your armor's resistance(to take less damage from an element or perhaps better than that). Don't worry, I'll go over Support Materia when I get them.
-Divisions of Materia
Ok I'll admit I'm not sure about this one since I didn't bother to read this one. Sorry about that. Anyway, maybe it's about how you can sort Materia by type in the Materia menu? (Arrange->Sort)
-Numbers of Materia that you may carry
200 Materia allowed. That's it.