Use clear plastic plates to make a "snow globe" winter scene. The teacher had kids write about "if I were in a snow globe." but I think I'd do a writing exercise more like "What I like about winter." or "What I would do in the snow.
Help Wanted bulletin board. Pockets with classroom job descriptions. Write student names on craft sticks and place them in appropriate pocket. Fun and easy way to switch up student jobs throughout the year.
Math Concepts: This is an adding machine! It is super simple to make and fun for the kids to learn about adding/composing numbers. It will help those kids understand the equal sign in a way they haven't experienced before.
for Less - Here is a simple math activity that you can customize to your child& skill level. The dollar store has a great selection of cupcake liners and aluminum cupcake tins. They can be used for practicing math.