Change in Motion
Lesson 4 of 8
Objective: Students will be able to observe and describe the change in an object's motion.
This lesson will require small balls for each group. The balls should be the same size.
I begin the lesson with a review of positional words that are used to describe an object in relation to another object. I begin with this review to activate prior knowledge that the students can reference throughout the lesson. I will display a ball to the students. Next, I will advise the students that they will be using materials and tools found in the classroom to create changes in the ball's motion.
I will give each group an assigned change in motion from the following list:
- Start from a standstill
- Change direction
- Change speed
- Stop from moving
I provide time for students to work on building their devices to demonstrate their assigned change in motion. Allowing students this independent work time gives them the opportunity to discover trial and error and use their vocabulary to describe the changes in motion. Using the vocabulary words to describe the position and change in motion, helps the students develop proficiency. As the students work, I continue making observations of each group. I use this time to ask probing questions. As the students conclude their experiment, I allow the students to observe other groups demonstrations and take notes in their science journal. Allowing the students to observe other groups, allows them to gain an understanding through the different situations.
To conclude the lesson, ask the students, "how did observing each of the other group's demonstrations help you describe changes to the motion of the ball? How does observing the way your ball moves help you describe the ways in which an object’s motion can change?" Discuss responses.