TEALS volunteer here (https://www.tealsk12.org https://www.tealsk12.org). TEALS offers its Intro to CS curricula as open textbooks: Sem 1: https://teals-introc

TEALS volunteer here (https://www.tealsk12.org https://www.tealsk12.org). TEALS offers its Intro to CS curricula as open textbooks: Sem 1: https://teals-introcs.gitbooks.io/introduction-to-computer-science-principles/content/index.html https://teals-introcs.gitbooks.io/introduction-to-computer-s... Sem 2: https://www.gitbook.com/book/teals-introcs/2nd-semester-introduction-to-computer-science-pri/details https://www.gitbook.com/book/teals-introcs/2nd-semester-intr... I taught this last year and had a blast. It's still a very new curriculum, so expect to have to work out some flow issues and maybe even a bug or two. In particular, doing Snap! for a whole semester I think works if you're only teaching one semester, but we wanted well more time on Python than we had.