LOST: Nintendo 3ds XL

I come to you with sad news. On the first day of school (Monday, February 9th 2017) I brought a Nintendo 3ds XL with a game in in that I got for Christmas. I had it charge during my 5th hour in Becky’s room, in the back right next to the eggshells. I got to 6th hour realizing I left it in Becky’s. However when I got back right after school it was gone. I have since left posters across the school with details
This thing is worth more than $200 dollars and has a lot of sentimental value to me, so it’s important that this is found. Anything teachers, students, and members of the community can do I would be eternally grateful.
 
A faithful (and worried) student