Best friends Adi and Gabi love to play with Adi's toy train. Round and round it goes--choo choo! Watching it loop the track gives the girls an idea. These scientific thinkers use their computer coding knowledge to put the train to work!

� propos de l?auteur

Caroline Karanja is a developer and designer who is on a mission to increase accessibility and sustainability through technology. She enjoys figuring out how things work and sharing this knowledge with others.

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Conor Kenny