Do not simply play poker for free at regular poker sites if you are just learning. Play in freerolls (real cash prize tournaments with no entry fees) like at the site below. You will learn more with something real up for grabs than playing simply allin poker.
96 freeroll tournaments per day. The entire site is free to play. Learn and earn yourself a bankroll as you do. Play in as many and as often as you like.
Winning poker hands listed from best to worst.
Royal Flush - 10, J, Q, K, A in same suit
Straight Flush - Any 5 cards in consecutive order in the same suit. Example 3, 4, 5, 6, 7 of spades
Four of a Kind - Example A, A, A, A
Full House - Any 3 of a kind as well as a pair. Example: K, K, K, 10, 10
Flush - Any 5 cards in the same suit. Example 3, 5, 6, 10, K all in diamonds etc.
Straight - 5 cards in consecutive order. Example: 6, 7, 8, 9, 10 and cards can be in various suits
3 of a Kind - Example: K, K, K
2 Pair - Example: K, K and 10, 10
Pair - Example: K, K
High Card: If no better hands are created the winning hand is declared to the person holding the highest card. Ace is the highest single card.
**Of note an ace can also be used as a 1 to create an A, 2, 3, 4, 5 straight.