Coefficient of Restitution - First Physics Lab - How high will a ball bounce?

How high will a ball bounce? My students were given a ticket (different colors) when they came to class. They had to pick a partner with a different color ticket. They were then asked to get two sets of six data pairs - one set with using the bricks for measurement and one set using the metric stick for measurement.

Then they were asked how they could represent the data. Of course, they answered the three ways: describe with words, plot a graph with the ordered pairs, and write an equation.

Lab Report format:

Title (Make up your own)
Date
Group (Put your name first)
Materials
Procedure: Write it up step by step
Data: This includes your table, your graphs for the brick set of data and the metric stick set of data, and your equation. Include pictures and video
Conclusion: Discuss how your results of the two sets of data compared. Discuss how you could improve your results and how they could be used to predict other drop heights. Discuss which balls would bounce the highest and what factors would effect this. 

Some sources to check: http://hypertextbook.com/facts/2006/restitution.shtml

Bernardo, S. (May, 1984). Physics of the sweet spot.Science Digest, pp.62-65, 95; Bryant

F.O., Burkett, L.N., Chen, S.S., Krahenbuhl, G.S., & Lu, P. (1977).Dynamic and performance characteristics of baseball bats. Research Quarterly,48(3), 505-509. Associated Press (2002). 

http://www.topendsports.com/biomechanics/coefficient-of-restitution.htm