If you liked the K-On!! anime, the Anime-Planet community thinks you'd like:
Ahh, the life of an elementary school student. Though Chika, Matsuri, Miu and Ana should focus on schoolwork, they’d much rather have fun instead. Whether it’s outings with 20-year-old-chain-smoker Noboe, holding each other hostage or learning to speak English with Ana’s foreign-born skills, there’s never a dull moment in the life of the girls. Join this cute quartet as they do cute (and often devious) things in cute and quirky ways!