The cards are a nice size at approximately 10 by 13 cm or about 4 by 5 inches. Mark Perrault has done a lovely job on the illustrations. The grey scale images are well drawn, clear, and attractive.
My only reservation in fully recommending the card set stems from wondering how well the cards will stand up to repeated classroom use over time. At my workplace, we still have a flashcard set that has been in the teachers' lending library since the 70s and has no stains or dog ears because of the sturdy, laminated material on which the cards were printed. Callan's cards are printed on a nice glossy heavy stock; I expect they will withstand a lot of handling. Still, I wonder how much it would add to the cost for her to offer a laminated version.
The set is listed at $16 CAD on the ESL Jigsaws website along with a companion BINGO card set that sells for $14. CAD. I will leave a comment under this blog post once a few teachers and I have tested these out with our learners.
What do you think? Might you use these?