Charli's Dorsal Device

An Engineering Adventure

(Charli Explores STEM® #3)

​When Charli meets an engineer at Career Day, she can't stop thinking about what it would be like to be an engineer herself. Soon, she is lost in an engineering daydream, designing a tracking device that will let a rescued dolphin return to the ocean. But will creating a device that can attach to the dolphin and work underwater be more than Charli can handle?

Ages 6-9 | Grades 1-4 | Lexile 690L | 91 pages | Book 3 in the Charli Explores STEM® series

Kids will learn: how GPS and satellites work, the basics of coding and prototyping, and that testing and fixing mistakes is how engineers succeed.

"I really loved how the writing makes engineering feel like play instead of homework." - Literary Titan, 5-star review

Free lesson plan available. Ideal for STEM nights, coding clubs, and classroom libraries.

Buying 10 or more single Charli books for a classroom or library? Bulk discounts of 25% to 50% apply automatically at checkout.