Lesson Plan - Robot Keychain

Creating a Wooden Robot Keychain

Grade Level: Middle School
Duration: 2–3 class periods (50 minutes each)

Objectives:

• Learn basic woodworking and hand tool safety.

• Practice measuring, cutting, and assembly skills.

• Create a custom wooden robot keychain using screws and wood scraps.

Materials Needed:

• Wooden blocks (1" x 2" x 3" or similar dimensions)

• Screws (various sizes for eyes, arms, and legs)

• Small keychain rings

• Drill with small bits (appropriate for keychain ring hole and screws)

• Screwdrivers

• Backsaws

• Sandpaper (medium and fine grit)

• Rulers or measuring tape

• Pencils

• Safety goggles

• Optional: Paint, markers, or wood stain for decoration

Preparation:

1. Cut wooden blocks to the desired size ahead of time or have students cut them as part of the lesson.

2. Gather all tools and materials, ensuring each student has access to needed items.

3. Set up a safety station to explain tool handling procedures.

Lesson Activities:

Day 1: Introduction and Design

1. Introduction (10 min):

   • Discuss the project and show an example of the wooden robot keychain.

   • Review safety guidelines for using backsaws and drills.

2. Planning & Design (30 min):

   • Students sketch their robot's design on paper, deciding on placement for screws (eyes, arms, legs) and the mouth cut.

   • Encourage creativity while maintaining functionality.

3. Tool Handling Practice (10 min):

   • Allow students to practice using the backsaw and drill on scrap wood.

Day 2: Construction

1. Cutting and Sanding (20 min):

   • Students use the backsaw to cut a straight line for the robot's mouth.

   • Sand edges and corners of the block for a smooth finish.

2. Assembly (30 min):

   • Drill pilot holes for screws (eyes, arms, and legs).

   • Insert screws carefully with a screwdriver. Ensure screws are not overtightened.

Day 3: Decoration and Final Touches

1. Adding Keychain Rings (10 min):

   • Drill a small hole at the top of the block and attach the keychain ring.

2. Decoration (30 min):

   • Students paint, stain, or decorate their robots as desired.

3. Cleanup and Reflection (10 min):

   • Students clean their workspace.

   • Share finished keychains and discuss challenges and successes in the process.

Assessment:

• Participation: Observe students’ engagement and adherence to safety practices.

• Design: Evaluate creativity and planning shown in sketches.

• Product: Assess the completed keychain for craftsmanship and functionality.

Extensions:

• STEM Integration: Discuss how joints and assembly methods relate to robot design.

• Engineering Connection: Explore ways to make a larger, articulated wooden robot.