Monday, October 19, 2009

Lab 9 Part 1: Data Toss

Warm Up: There is a person trying to throw a ball into a trash can. Do you think the person should throw the ball underhand or overhand to have the best chance of getting the ball into the trash can? Why?

Vocabulary:
1. Data – information about an object
2. Hypothesis – a scientific prediction based off of previous knowledge of a subject
3. Qualitative data – properties or characteristics that are used to identify things
4. Quantitative data – values that have been measured or counted
5. Range – a set of values
6. Sample size – the mount of people that an item is tested on
7. Variable – the one thing that is changing in an experiment

Hypothesis:

Variables:
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Procedure:

Data Table: My Data on Number of Complete Catches

Data Table: Class Data on Number of Complete Catches

Analysis Questions :
1. Explain whether your own data supported or disproved your hypothesis about the ability to catch a ball with two hands as compared to catching a ball with one hand.

2. Look at the class data
2.a. What was the range of students’ ability to catch a ball with one hand?

2.b. What was the range of students’ ability to catch a ball with two hands?

2.c. Use the class data to explain whether the ability to catch a ball increases when using two hands as compared to one.

3.a. What qualitative data did you collect in this activity?
3.b. What quantitative data did you collect in this activity?
3.c. Which type of data (qualitative or quantitative) was more useful for comparing results among the class members?
4. Your coach asks you whether she should continue to recommend that players on the team catch with two hands. Explain your recommendation and whether it is based on your own data or that of the class.

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