
Director:
Recorder:
Timer:
Measurement:
Materials:

Brainstorm and Explore Various Pendulum Models:
A series of 5 pendulum models (stations) are set up in the class room. The string is connected at the fulcrum (paper clip) at the ceiling with a carabiner at the end of the string. Each of the carabiners can accommodate a various number of weights (either bolts or washers) but each station begins with an initial condition of only one weight item. The fulcrum is set at 2'6" (minimum) from the wall for all stations. The string lengths vary from positioning the carabiner at a height of 1', 2', 3', 4' and 5' from the ground respectively.
String lengths shall be verified by a tape measure and recorded in your documentation. Document Ideas for Future Consideration:
Explore the characteristics of your station and make predictions about the essential questions then record them in your notebooks. DO NOT adjust string lengths or vary the initial weight condition of only 1weight item during this exploration time.
Formal Experimentation with Your Groups Model:
Discuss Outcomes and Observations with Your Group:
Consider the implications of your data and predict how these might be affected by the different conditions at the other stations. Do this prediction activity prior to examining data and outcomes of other stations experimentation as completed by your class piers.
Calculate Missing Parts of The Diagrammed Triangle:
1) Use law of cosine, law of sines, sum of interior angles of the triangle, or any other
applicable background knowledge as necessary to calculate missing attributes of the diagrammed triangle. If you feel another set of equations or calculations are necessary to enhance or replace these directions...you must show all equations, inputs, calculations and justifications for these substitutions (Triangle described by its sides being: distance 1, distance 2 and distance 4) 2) Calculate the central angle (CA) created by the string, at the fulcrum, when the pendulum swings from one extreme to the other. 3) Calculate the area of the sector captured by this central angle as a percentage of the area of the entire circle that would be created if the pendulum was swung one full rotation. 4) Calculate the actual arc length of the pendulums path as it swings from one extreme to the other. (Use the percentage you just calculated and the circumference formula) Create Preliminary Data Analysis Sheet:
Create from your recorded notes a neatly constructed data sheet with all formulas and all input values. Include a stepwise set of calculations which clearly illustrate how all derived values were attained. Make sure calculations for each trial are present and fully developed.
Along with this data sheet develop a graphical representation of the distance traveled by weight on your pendulum with respect to time. Use your horizontal maximum distance you collected in the beginning as an aid to creating your graph. Your representation should come from your group's collaborative efforts. You decide how to accomplish this task without looking to other groups or instructor for guidance. Hint: when graphing anything with respect to time, usually it is best to let "t" be on the horizontal axis of the graph. Refine Thoughts About Expectations and Outcomes: Discuss your group's data and findings amongst yourselves to prepare for the gallery walk where you shall view all data sheets representing each groups findings for their respective stations.
Cooperatively Form Your Group's Hypothesis Statements:
After the gallery walk reconvene with your group; formalize and record your prediction(s) in the form of an (or series of) ifthen hypothesis statement(s).
Also include any mathematical formulas or written relationships that may explain your observations and/or may help in predicting future outcomes of varying conditions similar to these pendulum stations. Create a Formal Presentation for Peer Review:
Create a presentation of your findings for your class and teacher which shall include your groups formal data sheet as an Excel spreadsheet or Microsoft Word document, and a PowerPoint presentation of no less that 5 slides and no more than 15 slides. Your presentation should address all factors considered by your group and how looking at the other pendulum stations may have affected your interpretation of your observations.
All PowerPoint presentations should be of professional and conservative business or scientific format. These shall then be posted on an ongoing web based class project site and each persons personal web portfolio for display on the internet. All pages and portfolios shall conform to internet safety standards and acceptable language and content policies. Artifact Creation Rubric Oral Presentation Rubric Consider Peer Findings and Feedback:
A formal peer review shall be done as a discussion post on the class webpage and shall be completed appropriate to said venue with regard to commentary, language and content. This review/reflection is a graded activity of self and peer assessment skills.

Create a dedicated page on you personal web portfolio which includes an introduction, pictures, your data sheet and PowerPoint embedded or linked, and a summary of what you learned. Submit to Mr. Taylor as a "turn in" on Engrade: a word document containing a text copy of your summary as it appears on your web portfolio, your data sheet (embedded Excel if necessary), and just below the summary text an active link to your site that links directly to the page you created.

Complete a peer evaluation assessment of your group members. This will be anonymous between students, but will help to adjust peer grades with respect to their cooperative work ethic and mannerisms. No one wants to have an unpleasant experience when working in groups...this will help to drive discussions between Mr. Taylor and individuals with regards to attitude, work ethic, and respect.
Please BE HONEST with your rubric scores. You will be required to do one for each member of your group. Complete the rubrics to assess all members of your group. (each page is for a n individual member). Mr. Taylor will compare your assessments with his anecdotal notes and observations. These should support one another if you are honest with your feedback...if they do not a meeting with Mr. Taylor may be required to discuss said discrepancies. Click here to download your Peer Assessment Rubric. After completing this save it to your desktop as a file name formatted as follows: P#_Group#_F_Lastname (Meaning: period number, group number, First initial, Last name) then submit this file as a "turn in" to Mr. Taylor on Engrade. 