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Knex 78890 - Education Amusement Park Experience Teachers Guide Manual

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LESSON 6
6: E
6: E
XAMINING
XAMINING
C
C
IRCULAR
IRCULAR
R
R
IDES
IDES
37
Whole Class
6. Students should discuss their findings about the relationship between speed and additional mass.
ACTIVITY 3: SPEED AND SLOPE
Am usement Par k Ex perienc e
Teacher’s Notes
If your students are familiar with the mathematical concept of slope, the following activity will enable
them to complete an investigation that provides an ‘authentic’ application of what is often an abstract
concept in their mathematics classroom. If, on the other hand, the students do not have the
mathematics background to complete the activity, they should skip Activity #3.
PROCESS
In Groups
1. Ask the students to prepare a data table using two columns of findings from the chart they
prepared during Activity # 2, as shown below.
Time
(sec)
Distance
(m)
TABLE 2
2. Graph the data, placing Time on the x–axis and Distance on the y–axis
3. Draw a line of best fit through the points on the graph.
4. Identify two ordered pairs and determine the slope of the line.
5. Label one of the order pairs as (x
1
, y
1
) and the other as (x
2
, y
2
).
6. Find the slope of each of the lines of best fit by calculating
y
2
- y
1
x
2
- x
1
Whole Class
7. Students should discuss their findings for the slope. You may want to ask: “Was the slope related
to your experimental value for the speed of the ride? Explain.”
.
… 39 …


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