A sprint retrospective is a meeting held after a sprint ends. The team gathers to discuss what went well and what could be improved. They identify specific action items to address problems and plan how to apply these improvements in the next sprint. This process helps the team learn and improve continuously. The execution_table shows each step from sprint end to retrospective close, while the variable_tracker shows how lists of positives, problems, and action items develop. Key moments include understanding why both positives and negatives are discussed and the importance of defining action items. The visual quiz tests understanding of outcomes at each step and when action items are created.