Yes, journaling cards are coming out this month. The way CM is promoting them, is to hand out at Home classes and home shows (not really for retail purchase). But, I am sure if you have a good relationship with your CMC, you can ask if you can just order a pack for yourself. I was just at Regional's this weekend and they really pushed these- it is 5 different sizes of journaling mats, cut from ruled paper, 40 in white and 40 in natural. It's really a great idea!
And I love your idea of making an album for teacher- I want to do the same thing, but since I rarely am able to help out in class (I have a two year old and babysit a 1 year old 4 days a week), I'm afraid the teacher might catch on to what I am doing if I just show up out of the blue to take a picture of each kid and send home a journaling mat with each student....but I guess it doesn't have to be a total surprise, right?