This is a poster dealing with place value. I would use this in my classroom to hang in the classroom so children could refer back to it while working on expanded form and place value.
I love the idea of Math Journaling and Notebooking. There is something to be said for recording what you’ve learned in your own words to be referenced later. What a great study tool that could be!
Here's a blue-themed packet with various sizes of posters that can be used as labels or signs for organizing BUILD math centers and stations. BUILD stands for: B-Buddy Games, U-Using Manipulatives, I-Independent Work, L- Learning About Numbers, and D-Doing Math.