Grade 4 PowerPoint about the Human Muscle and Skeleton System.

1. Human Machine
Lesson 1 - Muscles and Skeleton

2. Let’s see what you
know

3. Are humans like
robots?

5. What do you think is
going on inside your
hands when you’re
moving your fingers? Any
ideas?

7. What is a structure?
What is the structure in
the human body?

8. Where are your joints?

10. What was ‘dissection’
again? I forgot =(

11. What do you think would
actually be pulling on the
strings?

13. Wait… what’s the string
in our body called? It’s got
a funny name.

14. It’s the
tendons!

15. Describe how you might
go about creating a robot
hand that works just like
yours.

16. The Activity

18. Materials
What you need for each student!
Sharing is caring!
● Scissors
● Glue
● Tape
● 2 paper clips
● String about 30cm - 45cm
● Ruler
● 2cm cardstock

19. Procedure
Cut out the dashed lines of the rectangle, duh!

20. Procedure
Trace the grey lines using a ruler, if you want to

21. Procedure
Fold all six lines, you better see the line clearly!

22. Procedure
Fold the paper in half to cut out the black triangles
like below. Don’t get it wrong!

23. Procedure
Make a 2cm card stock, it should be the same size as
the grey box on the finger. Use a ruler!
2cm
12.7cm, or 13cm

24. Procedure
Use the cardstock to cover the grey box, you can
use tape or glue to hold the cardstock in place.

25. Procedure
Tie the string to the paper clip with one loop!

26. Procedure
Fold the bone into a triangular shape, then put
the second paper clip on bone #4

27. Procedure
Slide the string with the paper clip and pin it on
bone #1

28. Procedure
Have fun!

29. Explain what
makes your real
finger bend.
Words you can use:
● Bone
● Joints
● Tendon
● Muscle

30. Still got time?

31. Join forces and make a robot hand!

32. We still got time???

33. Formative Assessment