I know this is an old thread, but I am looking for more information on this specific topic. I teach Middle School and have been using CS Discoveries in my course for about 3 years. I feel like I have been very successful using this curriculum. My supervisor is a big fan of PLTW and has the HS Engineering classes using that curriculum. He wants to bring PLTW to the Middle School next year. I do not know enough about the PLTW CS curriculum to know how it compares to Code.org. Our Intro to Engineering teacher at the MS came from the HS and taught PLTW there for one year and did not like it. That review makes me very hesitant to teach PLTW CS. I was wondering if anyone has any other feedback regarding the comparison between PLTW CS and Code.or CSD?
Thanks.