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Rocks

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This laboratory has two separate goals.  To learn how rocks are characterized To learn to build a slide deck using mobile apps Questions to be explored in the laboratory: What are the three basic types of rocks? What is rock hardness? What is rock luster? What is rock breakage? What is rock color streak? What is the identification of your rock? On Pohnpei there are essentially two types of rocks. The black colored rock is basalt, a combination of minerals produced by the volcanic eruptions that formed the island. Basalt can be composed of different minerals. Basalt on Pohnpei contains iron which oxidizes to form red and brown colors. The red clay soils are also high in iron. There is so much iron in the ground that well water in some places has too much iron to be consumed by us. Out in Nett there is a special facility that removes iron from the well water. The other type of rock is coral, usually a white color. Coral is not a mineral because the origin of coral is in a living anim...
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Desmos graphs t-distribution and calculates t-critical

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Desmos can now calculate t-critical values and graph the t-distribution, an upgrade from only being able to graph the normal distribution. Desmos The normal distribution showed area values larger than 0.95 when upper and lower bounds calculated using the t-distribution were entered. The availability of the t-distribution now shows the correct probability for upper and lower limits calculated using the t-distribution, a necessity when working with sample means. The function for generating t-critical for a sample size n and a 95% confidence interval: The period notation allows one to apply additional functions . These functions allow one to evaluate or manipulate the distribution in different ways. The Desmos file provides a visual approach to confidence interval hypothesis testing calculations done in Google Sheets . The above spreadsheet pulls data from exercises in chapter 9.2 and 10.1 of an MS 150 Statistics course. 
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Healthy sexuality

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Unit eight on healthy sexuality has been problematic for the past two runs of the SC 101 Health Science course. The students would prefer to be gender separated for this unit but the course schedule doesn't have that flexibility.  There are cultural and traditional factors underneath the discomfort. These are cultures where on one island women who are having their monthly were once sent to a women's house away from the village during that period of time. These things are not only not talked about, in some cases they are hidden away to the maximum extent possible.  This term the realization landed that the overhead hook system provided a way to put up a movable curtain. Women on one side, men on the other.  Feedback was only anecdotal at the end of the two sessions.  That feedback was very positive, with both the men and women expressing appreciation for and comfort with the arrangement. Out of sight really is out of min...
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10.1 Confidence interval hypothesis test

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  A confidence interval hypothesis test was done on the theory that the navel is located at the golden ratio, that the fibobelly ratio is the golden ratio.  Spreadsheet This was refuted for both the females and the males. The number line approach to interpreting confidence intervals was illustrated on the board.
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9.2 Paper aircraft confidence interval

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This term the aircraft were thrown from the second floor of the east end of the A classroom building. Downstairs after measuring distances, Estele and Tiepo looking out over the field of paper aircraft. Setting up to measure those that went negative. West breeze, very light, El Niño induced. Can you see the plane?  Caught a brief surge in the west wind. Way out near the fence line. Board work Spreadsheet for current term. A multi-term master also exists. 
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072 Arcseconds to meters conversion factor

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The heat and sun altered the laboratory to take advantage of shade and the new metric measuring wheel. Start location at 6° 54' 35" north, 158° 09' 30" east. 8:00 measured along a line of latitude. Iryann and Maicalany at the start location. The heat was concerning, so the class moved from shade location to shade location, taking advantage of the metric wheel. After a stop in the shade of the Terminalia catappa, the next shade was at the parking lot. iPhone Compass app users simply recorded the seconds value shown. Android users with GPSTest recorded arcseconds to the hundredth of an arcsecond.  GPSTest arcsecond data, distances were wherever there was shade. The new measuring wheel made this work beautifully. Shade was grabbed where it could be found along the route.  259 meters Ashton at the next shade stop. Board data At 11...
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