I took this with me to Office Max and for under $5 they blew it up poster size for me. I then double laminated it at my school and hung it in my room. My kids LOVED it! After a lesson I would post a "challenge question", something I though they may have struggled with, had them reflect on a learning goal/ objective... lots of things you can write in the questions section with a dry erase marker (wipes clean with a little water/Windex) students used their number space to stick a sticky note up in the box - this was great for me to reflect on my teaching and see if there were any misconceptions. Hope you enjoy it as much as we have - it's sure sparked great conversations and my observers always noted it with high regards!