First of the series by Jennifer Holm and Matthew Holm. New York, NY: Random House Books for Young Readers, 2011
A series about amoeba, pond scum, Principal Planaria, and other wonderfully quirky single-celled kids who navigate through school and summer challenges in their not-so-microscopic world.
It is loads of fun and received starred review from Kirkus Reviews.
See how to use this books to teach students how to use and write dialogue and text balloons (pp. 46-48); and literary devices such as onomatopoeia (pp. 83-84, 101-102) in Worth A Thousand Words: Using Graphic Novels to Teach Visual and Verbal Literacy.