Hello:) I am a professional translator with the basic knowledge of C++. I am a designer as well, and I guess my creative thinking will be of great help. My husband is a top-notch system architect/C++ programmer with a 20-year experience. He is also a Master of Sciences with a very good mathematical education. We have 3 kids. Our daughter is 8 , and our son is 5. My husband developed a special training course for her to teach her programming, basically mathematics/calculations/computational thinking. She is good at operations on Binary System. Our son counts/adds/subtracts within 1000 without a calculator. It would be interesting to know the initial level of knowledge of your target group, and the desired level you aim to achieve with these 20 lessons. Also, what is the range of didactic materials you use/can use? Can we introduce something new? Does your target group include " talented" kids or mixed groups. Would be happy to work on this project:)