Here are some recently published picture books about school:
Knudsen, Michelle. Argus. [JP KNU]
Sallie's class is supposed to be raising chicks as a science project, but although Argus, the large, green, scaly creature that hatches from her egg, causes all sorts of trouble she worries about him when he disappears.
Messner, Kate. Sea Monster's First Day. [JP MES]
A young sea monster experiences his first day of school and, after a rocky start, he makes friends and has fun.
Wells, Rosemary. Hands Off, Harry! [JP WEL]]
Harry has trouble keeping his hands off his classmates until Tina thinks of the perfect piece of gym equipment to teach him about personal space.