One game that my students enjoy the challenge of is
Blackjack 1. You need a set of fraction cards per student (or
you can make them from index cards.) The same rules as
Blackjack apply. Instead of trying to get to 21, they want to
try and get close to 1 without going over. With this game
they practice addition and comparing -- it's great. You can
also make it more challenging or bring in mixed numbers with
Blackjack 2 or Blackjack 3. (Blackjack 2 means to try to get as close to 2 as possible without going over.)
I am not sure where to buy fraction cards. I have one set that I
received when I took over a classroom. However, I have always had
the students create their own sets and we used them for several
games. I gave each students a set of index cards (3 1/2 X 5) and
they wrote the fractions in pencil so they couldn't be seen
through the cards. These are the fractions we included:
all fractions with a denominator of 2, 3, 4, 5, 6, 8, 10, and 12.
(To challenge the students you may want to use the 7, 9, and 11
denominators as well.) I also had the students include 2 0's such
as 0/3 and 0/4 and two 1's such as 3/3 and 4/4. Each game
required two sets of cards, so I had the students write their
initials in the corner of their set so they would get a complete
set back after the game.