Baka and Test: Summon the Beasts (2010)
Plot
All the students in a school are distributed according to their individual score in a test into six section and are treated according to their section. The least scoring students then makes a resolution to gain back their status and that a mere score in a test doesn't really describes an individual personal brilliance.
Where to watch Baka and Test: Summon the Beasts?
Baka and Test: Summon the Beasts is an anime show featuring Keisuke Gotou and created by Kenji Inoue.
Baka and Test: Summon the Beasts is currently streaming on Crunchyroll, Crunchyroll Amazon Channel and Funimation Now.
It is also possible to buy Baka and Test: Summon the Beasts on Amazon Video and Apple TV.