I am working on a spreadsheet adding code.org lesson to the CCMS by grade level. This is for the ISTE book "No Fear Coding - Computational Thinking Across the Curriculum." Not to reinvent the wheel, if you have already done this, please share. And, if you have any favorite code.org puzzles or activities that you know has improved mastery of a math standard, please let me know. We need case studies to demonstrate that coding improves mastery of math practices and content. Bootstrap and CS in Algebra has done this. But, I am looking for lessons that focus on K-5 math. See www.codemathteks.edublogs.org for what I have started for Texas. Thank you for your feedback.