Curt Minich has been teaching computer science for 31 years. He and three of his students heartily endorse CS Academy from Carnegie Mellon University as the complete package that has allowed them to achieve a level of coding that they hadn't previously imagined.
CS Academy includes consistent hands-on support for teachers, and it's completely free.
Resources:
CMU CS Academy is an online, graphics-based computer science curriculum taught in Python provided by Carnegie Mellon University, offering novel, world-class Computer Science education for your classroom —and it’s entirely free.
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