This is a great idea for teaching adjectives. I like how the project is built upon a theme. Each adjective describes popcorn. You could even change up the theme to coincide with your lesson plans. the only problem doing this would be that it is timeconsuming to change it up. It would require you to be able to draw a new one when you wanted to change it.
ELA ~ First Grade: Nice for first grade. Suggestion: create this to be a lesson. (Given a simple verb, the student will use it in a sentence. They will change tenses past and future, repeating the pattern of word/ sentence. Way to compare verb tenses and decorate the classroom at the same time!