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Knex 78890 - Education Amusement Park Experience Teachers Guide Manual

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LESSON 9
9: P
9: P
REDICTING
REDICTING
THE
THE
P
P
ATTERN
ATTERN
OF
OF
R
R
IDES
IDES
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Investigation A: Geared Model
2. Students will first observe the swing ride where the red Gear is attached to the motor. Allow
students time to observe the ride while stationary. You may want to ask the following guiding
q
uestions:
a. Describe the positions of the swings while at rest.
b. Are the swings an equal distance from each other?
c. What do you think will happen when the motor is turned on?
3. Depending on the size of the paper, one or two sheets of butcher paper should be placed
side–by-side on the table and taped down. Ask the students to:
a. Center the Swing Ride on the butcher paper and carefully trace its outline; label the center of
the ride. Students may need some direction as to how to identify the point that would represent
the center of the ride.
b. Attach a Sharpie
®
marker (using a small rubber band) to one of the outer seats so that it
touches the paper. See Fig. 1 below.
Teacher’s Notes
• You will want to assist the students in the appropriate placement of the marker as this can be
challenging. Please see illustration of marker placement.
• A marker with a narrow point works best for this activity.
3. Pose the following questions and ask the students to record their predictions and sketch their ideas
in their journals. Predictions should be made before the ride is set in motion.
a. If you are sitting on a swing seat and turn a bottle of orange juice upside down as the ride
begins to move, predict what design the spilled drink will make.
b. How will you know when the ride reaches full speed?”
c. Predict the number of rotations on its axis that the ride will make before it reaches full speed.
Fig. 1
… 62 …


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