In this design and technology lesson, students are encouraged to develop one project idea from their previous brainstorming session. The instructor emphasizes the importance of creating a detailed drawing and a comprehensive plan to gather necessary materials and streamline the workflow during the project. Students will complete page 7 of their design folio, which involves selecting one initial idea and providing reasons for their choice, alongside a detailed drawing that includes measurements and additional information. This process ensures that they have a clear understanding of their project before starting the creation phase.