The document describes the investigate stage of the design cycle. It provides guidance on how to complete the investigate stage, including making a chart to answer questions about what is being asked and the importance of the topic. The example provided shows a brief summary of an assigned project to create a video blog (vlog) and the initial research done in the investigate stage to understand what a vlog is and the role of a vlogger. The example chart includes brief answers to the questions but could be improved by providing more detailed explanations.