Tuesday, March 18, 2014

Model Data with TI-Nspire DataQuest

At a recent webinar called "Technical Problem Solving with Vernier® Sensors and TI-Nspire™ Technology" the stated purpose was: "Whether you are looking for STEM resources, teaching a secondary engineering course, or participating in Science Olympiad’s Technical Problem Solving event, this webinar is right for you! See examples of rich technical and engineering problems, and learn how TI-Nspire technology can help students investigate a given problem, analyze and interpret data, and design a solution. Explore how to gather data using the built-in Vernier® DataQuest™ application and the Vernier® EasyTemp™ USB temperature sensor, the Calculator-Based Ranger 2™ (CBR 2) motion sensor and the Vernier Colorimeter. Learn where to locate helpful resources for using additional Vernier sensors with TI-Nspire technology." Linda showed a website for the Winter Olympics 2014 and 2010, Summer Olympics, Golf, Hockey, etc…



 - Stability and Vibration in Alpine Skiing - click on the Lessons tab on the right.
   Do with Vernier damped harmonic motion activity with CBR2 motion detector
   Math connections - sinusoidal, exponential

Data was modeled (menu, Analyze, Model) with a function that was the product of an exponential and sinusoidal.
Question: Can a model be done before data is collected.
Answer: Yes, in fact there are 2 (or 3 ways) to predict the graph before collecting data.
1) Menu, Analyze, Model.


2) Menu, Analyze, Draw Prediction. This is less of a mathematical approach, but can still be mathematically useful - e.g. increasing, decreasing, positive slope, negative slope, etc.
3) With a CBR attached you can enjoy Menu, Analyze, Motion Match. For more tips with motion match see this pdf and word doc.
Mike showed Science Olympics  - check out Events,  Technical Problem Solving (sponsored by TI)


Colorimeter (affordable, device worth $1000s, but only $115) demonstrated with TI-Nspire Navigator, Live Presenter shows a students handheld
- concentration is proportional to absorption
- Collecting data with Vernier and TI-Nspire is a time saver.
- Linearizing data (very important in sciences, especially AP)
    - Linearize exponential data by taking the natural log of it.
    - This was demonstrated in a List & Spreadsheet.
It could also be done in DataQuest: Menu > Data > New Calculated Column
Note that the domain of y=ln(x) is x>0. So if any data is negative, they’ll need to be struck before taking the natural log of it. Menu > Data > Strike Data




Extra Tips:
- If you want to use your data in other Apps, or environments,
with OS3.6, you can now export the data to other apps by pressing MENU > 7: Send to...
- The menu> Analyze > Tangent on DataQuest is powerful.

*Technical Problem Solving with Vernier® Sensors and TI-Nspire™ Technology

Level: All
Whether you are looking for STEM resources, teaching a secondary engineering course, or participating in Science Olympiad’s Technical Problem Solving event, this webinar is right for you! See examples of rich technical and engineering problems, and learn how TI-Nspire technology can help students investigate a given problem, analyze and interpret data, and design a solution. Explore how to gather data using the built-in Vernier® DataQuest™ application and the Vernier® EasyTemp™ USB temperature sensor, the Calculator-Based Ranger 2™ (CBR 2) motion sensor and the Vernier Colorimeter. Learn where to locate helpful resources for using additional Vernier sensors with TI-Nspire technology with panelists Linda Antinone and Mike Smith
Link to documents and recording of the video are available.
The zip file for the documents does not contain any of the tns files with data. It contains a pdf of the PowerPoint slides that was used at the beginning and end of the presentation. Also included is the TI-Nspire Data Collection and Analysis Guidebook (available online with other guidebooks.)

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