Thank you cards

When it comes to showing appreciation for the school teachers I'm just never sure what to do. I'm sure some people buy them gifts, but when I pay for tuition (which certainly isn't cheap) I'm torn about spending more money on the cause. Not that I don't appreciate the teachers (I truly do, and I know teachers are underpaid) I'm just not sure what is the "right thing" to do. So for the kindergarten teachers I came up with the idea that I'd make them a card - if it were me, I think a heartfelt note of appreciation would be a great gift. I'd love to hear that my work is helping someone out. So here is the card design I came up with...