How long since you last spoke (in days)? She's sent you numerous IOI's (Indicators of Interest), to list:
1) She asked you for your number.
That means she's into you and she's taking the steps in seducing you. From this point you need to make sure she keeps at this process. Never making a move yourself will make her feel you're not interested or really clueless.
2) She suggests you get together.
She wants you to ask her on a date or suggest a "meet up" of sorts.
3) She says she'll teach you pool.
The classic "let me brush up against you and bend you over the pooltable while I teach you how to hold a stick." Thats a pretty sexual come on.
From reading this I'm going to make two guesses:
1) You're hot.
2) You have no real experience with women, do you?
I'd say if you last talked to her in less than 10 days to give her a call, see hows she's doing, what she's up to, tell her to come with you to [lunch / a game of pool / movies], and take it from there.
If its been quite a while, since it seems you may have staled on her, make more casual contact with her first, compliment her in a flirting way (show interest, I'm guessing you haven't given her any SOI's), if she's receptive, then tell her to hang out with you sometime.
-MV