Peter Flemming started a coding club at Greatlakes Library with 14 children aged 8-11 using free curriculum from Code Club. The club uses Scratch, a visual programming language, to introduce coding concepts in a fun way for beginners through drag and drop blocks. While BYOD devices and varying skill levels pose challenges, the club has been successful in sparking the children's interest, with some members starting their own coding clubs and one winning a competition prize.