The idea is that these cards can be given to students as a warm up, cool down, planned reading session, after test relaxation. Having this ready set of reading cards means that the teacher always has something ready for the class.
Depending on the level of the class, collect articles, print out short reading passages with comprehension questions, short plays. Each card should be different. On each occasion that the card activity is done, the students get a new card, record the number of the card, read and do the activities that the card suggests. Writing is never done on the card. Preferably, the cards should be laminated; it is this presentation that makes it different from a regular handout. Lamination also protects all the preparation work done by the teacher.
As time goes by, different sets of cards can be prepared so that the teacher eventually builds up a little library of sets of cards that can be used with different classes and levels.