I created this holiday tree to use in my math class. The idea is to put a number in the star and the students create equations, expressions, or equivalent numbers in the ornaments.
This is how I am using it this year. We are currently learning to add and subtract decimals. The decimal goes in the star and the students create addition and subtraction problems that equal the original decimal.
Click on the pictures above to be taken to my blog post where you can download this freebie.