I don't know how many people have this problem but some teachers don't let you write your full speech on your q-cards. my simple solution:
1. print out your 'legal' q-cards with flaps on the sides (on normal paper)
2. make a back the same size (without flaps) and glue the two together
3. print out your full speech and cut it slightly smaller than the first
4. slide the full version inside of the coresponding 'legal' cards
to use them stealthily you bend the card so that you can see inside it (the front of the 'legal' one bends forward exposing the cheat card) and looks like you are bending the cards if you need to hand them in just slide out the cheater cards
ps print it out so that there is only one paragraph per card and you may need to use a shade of gray for the cheater slides so that people don't see it through the legal cards.
It works, 95% on french speech, yay no memorizing (maybe a little), 10 minutes making cards!