Interesting how chalk, blackboards and equations can look so neat! Post your's if you have some favorites! [ATTACH] [ATTACH] [ATTACH] [ATTACH] [ATTACH]
![Avatar](https://cdn.statically.io/img/i.pinimg.com/140x140_RS/06/35/b6/0635b6845a9a19164a4723a71ebef5d1.jpg)
Jacqueline Rowland