Teaching students to be appreciative is my daily goal. Turns out, acknowledging acts of kindness by writing thank-you notes has really helped us. This half-sheet form is PERFECT for beginning, intermediate, and strong writers alike.
We've even used these sheets to write thank-you Valentine's to our office staff, custodians, administrators, etc. I simply collect a note from each student and bind them together in a construction paper cover. The students love to decorate and present their notes.