Objective
By the end of this lesson, you will be able to understand the muscular system and how it relates to the functioning of hands, learn about sign language, and build a robotic hand.
Materials and Prep
- Printed diagrams of the muscular system
- Index cards
- Markers or colored pencils
- Scissors
- Tape or glue
- Cardboard
- String or rubber bands
- Straws
- Optional: Craft supplies for decorating the robotic hand
Before starting the lesson, make sure you have a basic understanding of the muscular system and its functions.
Activities
- Create a diagram: Use the printed diagrams of the muscular system to create your own labeled diagram. Color the muscles and label the different parts.
- Sign language practice: Learn the alphabet in sign language and practice spelling words using sign language. Write down a few simple words and try signing them.
- Build a robotic hand: Use the cardboard, straws, string or rubber bands to create a model of a robotic hand. Follow instructions or design your own hand. Test its movement and flexibility.
- Optional: Decorate your robotic hand using craft supplies. Make it unique and personalized.
Third Grade Talking Points
- "The muscular system is made up of muscles that help our bodies move. It's like the engine of a car that makes it go!"
- "Our hands are controlled by muscles. When we want to pick something up or write, our brain sends signals to the muscles in our hands to make them move."
- "Sign language is a way of communicating using hand movements and gestures instead of spoken words. It's like having a secret code with your hands!"
- "Building a robotic hand can help us understand how our own hands work. We can see how different parts come together to create movement."
- "Robotic hands are used in many different fields, like medicine and engineering. They can help people who have lost their own hands or fingers."