Acceleration day three

The day started on high altocumulus clouds at sunrise. 


Laboratory three opened with an overview of the past work on velocity and acceleration.

Laid out this way, Wednesday is just the week two equation d = v₀t plus the Monday week three equation of d = ½at² resulting in d = ½at² + v₀t. Perhaps the idea of v₀ should be emphasized in week two?

Memichin drops and times while Stella records. This term I encouraged two member teams. 

Ian drops and times while Pevirleen records data.

Renae and Alathea set up to gather data. 

The class has health career opportunities students visit to view the periodic table.

The area west of the classroom is undergoing changes. 

The right is the future teaching and learning health clinic. Power lines had to be rerouted due to the building.

Memichin

Siniann working at the five meter mark.

Sometimes physical science is fun. Siniann gets ready to drop her ball. 


Class wrapped up with a look at the equation and a calculation of the class mean for the acceleration of gravity g. The average was within 1% of the published value for g.

Desmos



Lonie "Ney" drops and times, Malachi holds the meter stick

In the 11:00 class I again encouraged pairs rather than the triples of the past. 

Jarden and Alyssa


Darian and Aryolynn


Ruth and Sonya


I reran the five drop start for the 11:00 class

The 11:00 class had more errors in their data sets. 

Desmos

Comments

Post a Comment

Popular posts from this blog

Plotting polar coordinates in Desmos and a vector addition demonstrator

Image
In an earlier post I noted that Desmos did not directly plot polar coordinates. Not only was I incorrect, but Desmos responded to my blog to correct me! Although I had at some point seen that one could define a function f(x)=3x+5 and then have Desmos calculate f(6), I had not absorbed how this might be used to plot polar coordinates. The above works beautifully . Realizing that I could effectively program Desmos, I applied this thinking to demonstrating how to add two vectors when given the magnitudes m and the direction angles theta. The graph calculates the i and j components for the two vectors and then adds the vectors, graphically displaying the result while also providing information on the magnitude and direction of the vector sum. m1 and theta1 are the magnitude and direction angle for one of the two vectors, m2 and theta2 are the magnitude and direction for the other vector. All four are dynamically interactive and can be changed. The diagram purports to illustra
Read more

Setting up a boxplot chart in Google Sheets with multiple boxplots on a single chart

Image
The  Google Statistics  add-on for Google Sheets can display multiple boxplots in a single chart. The key is the layout of the data. One column should be the variable by which the data is to be grouped, the other column should be the data to be box plotted. Set up the Statistics add-on with the data to be plotted as the variable, and the grouping column as the "by" variable. In this image I had deselected all but the boxplot option, the result was the appearance of the Moment, Standard errors, and Confidence intervals options. The default is apparently a 95% confidence interval for the mean. The result is multiple boxplots on a single chart with a common scale. The new tab that is created also quotes 95% confidence intervals for the mean. Note that as of 2018 the Google Statistics add-on cannot be found by search in the add-ons. In addition, as of May 2018 the add-on no longer verifies, possibly due to the add-on not having been updated since August 2017. One may ha
Read more

Traditional food dishes of Micronesia

Image
Clara, Jennette, and Joanie presented ground hard taro cooked in an umw, effectively a hot rock oven. Pohnpeian: rotama. Pingelapese: sero. Mwoakillese: rodma. Mortlockese: Amahd. Kosrae: rodoma. After cooking in an umw the rotama is pounded with the petiole of a palm frond. Rotama is made from hard or swamp taro, known as mwahng on Pohnpei, mweian on Pingalap, pula in Mortlockese, and pahsruhk on Kosrae. In traditional times on the outer islands the women had primary responsibility for tending the taro while the men handled fishing and climbing tasks. Joesen and Noeleen presented fermented breadfruit from the outer islands of Yap such as Woleai and Eauripik. The raw ingredients were actually brought in from Yap, Noeleen prepared the maare.  The leaf wrap is ti leaf - Cordyline fruticosa. Pauleen, Barnson, Trisha, Verginia, Con-ray, and Maylanda from Kitti, Pohnpei brought in mahi umw, koahpnoair koakihr, and uht sukusuk. Above is breadfruit umw, mahi umw, one o
Read more