Dynamite Beauty!!

Dynamite Beauty!! (ダイナマイト・ビューティー!!) is a manga series by Madoka Matsuura. It was serialized in Young Magazine.

Plot
A local high school is thrown into chaos when Wakaba Sakurada, a gorgeous 21-year-old teacher-in-training, joins the faculty. Wakaba goes to incredible lengths in her attempt to become the best art teacher she can be, including modelling nude for her students!