Lego Office Chair Lesson Plan - Small Particles

The Lego small-particle lesson plan for a 360-degree rotating office chair focuses on practical application, covering goal setting, resource preparation, step planning, and assessment extension. It aims to cultivate students' engineering thinking and teamwork abilities through hands-on operations.

Clear Lesson Plan Goals, Focusing on Ability Enhancement
The lesson plan is guided by three-dimensional goals:

1. Knowledge Goals: Students need to understand the structure (such as the frame, connecting shaft, and seat panel) and functions (360-degree rotation, load-bearing support) of a rotating chair, and master rotation principles such as gear transmission or shaft fixation.
2. Ability Goals: Through assembly and debugging, students can exercise hands-on operational skills; when solving problems like loose connecting shafts or rotating stutters, they can develop problem-solving abilities; and in group work, they can enhance communication and collaboration skills.
3. Thinking Goals: Through design optimization (such as adjusting the frame's inclination angle) and extended tasks (making a rotating table), students can stimulate creativity and innovative thinking.

Scientific Design of Teaching Resources and Steps
Teaching resources include Lego small-particle sets, projectors, worksheets, and timers to ensure visualized teaching and process controllability. The teaching steps are divided into five stages:

1. Introduction Stage: Through physical displays and questions (such as "How can rotation be achieved?"), students' interests are stimulated, and they are guided to think about the conditions for achieving functions.
2. Exploration Stage: During group assembly, students are encouraged to record problems (such as loose parts) and try to solve them. Teachers guide discussions on rotation principles and design optimization at appropriate times.
3. Presentation Stage: Each group shares its design concepts and solutions, promoting experience exchange and critical thinking.
4. Extension Stage: The upgraded task is to make a rotating table, emphasizing stability and load-bearing capacity, further deepening the relationship between structure and function.
5. Summary Stage: The teacher summarizes the connection between function and structure (such as how frame stability determines load-bearing capacity), reinforcing the "structure-function perspective".

Assessment and Extension Focus on Process and Outcomes
Assessment methods include observing participation, evaluating expression abilities, and analyzing worksheet records, comprehensively covering knowledge, skills, and thinking aspects. Extended activities encourage students to create other rotating furniture (such as bookshelves) or participate in Lego competitions, extending classroom learning to life practices and enhancing continuous exploration motivation.