Select a buggy program block and give it to the groups. If your students aren’t very familiar with block coding, we suggest starting with Bug 1. Once you have worked through a bug, play the debugged program as a class! Feel free to break this activity up over several days. Give groups the ‘How the Code Works’ rules for their bug, and a limited amount of time to find the errors! (We suggest 5 minutes) After time runs out, provide groups with another bug, and repeat. Have students debrief the class in groups using the strategies on the next page.