 1. Drawings
360 seconds
Checkin: Draw/write - Something that makes you smile
2. Word cloud
120 seconds
In a few words, describe the force summation of a baseball throw?
3. Slide
60 seconds
Force summation is the effect of multiple forces acting together to produce a single force. In baseball, force summation occurs when a player applies several different forces to a ball during a throw. Each force accumulates to create a single, powerful, and precise throw.
Force Summation in Baseball Throws
4. Slide
60 seconds
Force Summation: The total force that is generated by all of the muscles and joints that are used to produce a baseball throw. Kinetic Chain: The sequence of muscles and joints that work together to produce a baseball throw. Force Vector: The direction and magnitude of the force that is generated at each joint during a baseball throw.
Concepts:
5. Slide
60 seconds
A fastball thrown at 100 mph will take only 400 milliseconds to reach the catcher’s mitt. The force of a baseball thrown at 100 mph is equal to the force of a bowling ball when it strikes the pins. When a pitcher throws a curveball, the Magnus Effect creates a force that helps it spin to the side.
Did you know?
6. Open question
300 seconds
What muscles are involved in the throwing motion of a baseball?
7. Open question
300 seconds
How do these muscles interact to provide force summation for a baseball throw?
8. Open question
300 seconds
What did you learn about the muscles involved in a baseball throw?
9. Drawings
1260 seconds
Question: How can force summation be used to explain the power behind a baseball throw? Clues: • Force summation is the combination of different forces working together to produce an overall effect. • In the case of a baseball throw, think about how the force of the thrower's arm, the force of the ball, and the force of gravity work together. • Remember that force summation is made up of two parts: the magnitude and the direction of the forces involved. In pairs: Select and solve one of the tasks: A. Work in pairs to explain the force summation of a baseball throw with a drawing. B. Explain your drawing to the rest of the class and discuss why the combination of forces creates the power of a baseball throw.
10. Open question
300 seconds
How can you apply what you have learned about force summation and muscle interaction to other activities?
11. Drawings
450 seconds
Brain break: Draw a fire-breathing dragon driving a rocket ship
12. Poll
60 seconds
What is force summation in the context of a baseball throw?
• The distance covered by the baseball during a throw
• The sequential activation and coordination of body segments to maximize throwing velocity
• The total number of forces acting on the baseball
13. Poll
60 seconds
Which segment of the body contributes most to force summation in a baseball throw?
• Arm
• Upper body
• Lower body
14. Poll
60 seconds
How does proper sequencing of body segments contribute to force summation?
• It reduces throwing accuracy
• It increases risk of injury
• It allows for transfer of energy from larger to smaller segments
15. Poll
60 seconds
What role does core stability play in force summation during a baseball throw?
• It helps with ball trajectory control
• It has no significant impact on throwing performance
• It provides a solid base for generating and transferring forces
16. Poll
60 seconds
True or False: Force summation is essential for maximizing throwing velocity in a baseball throw.
• True
• False
17. Open question
180 seconds
Work together in pairs: What are the three components of a force summation that must occur in order for a baseball throw to reach maximum velocity?