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Answers to general questions (Read 346 times)
Reply #3 - Mar 27th, 2020 at 11:23am

Miss Brooks   Offline
YaBB Teacher

Posts: 803
 
Q: Many people have been asking things like: How much data do I need? What data do I need?

A: The assignment is due very soon and you can only spend so much time on it. Use whatever data you have right now and do the best you can. Obviously some data sets are higher quality than others but you can demonstrate trigonometry skills with any data set that is roughly sinusoidal.

There are a variety of ways to do regressions and plot graphs. Some are more sophisticated than others. However, you do not have time right now to be learning new technology. Doing everything by hand is fine. It's basically the Ferris Wheel Problem from last year.

This assignment is a real-life assignment and in real science we need to make judgement calls. The question is open ended and you need to decide for yourself what you are going to do.

If stressed, calm down  Cheesy  We will all be all right and math should not be an enormous worry. If you are checking what everyone else is doing this probably a bad idea. The most important thing is that it is clear what you personally have done and your graphs are sine or cosine functions that reasonable fit the real-life situation.



 
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Reply #2 - Mar 26th, 2020 at 4:22pm

Miss Brooks   Offline
YaBB Teacher

Posts: 803
 
Q: How do you do a graph with 2 y-axes

A: You do not need to do this in GeoGebra. If it doesn't immediately occur to you how to use technology for this it is completely acceptable to do it by hand. If you are wondering what a graph with 2 values on the y-axes looks like, see the attached sample. The reason for this type of graph is that you are plotting two different functions that have different units or ranges but you want to put them on the same grid.
 

2_y-axes_graph.jpg (54 KB | 28 )
2_y-axes_graph.jpg
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Reply #1 - Mar 25th, 2020 at 2:08pm

Miss Brooks   Offline
YaBB Teacher

Posts: 803
 
Q: Where can I find weather data?
A: There are many possible sources. A source like Environment Canada is very  reliable but you will have to sort through it to find the information you want.
You might want to pick a location for which there is lots of data rather than researching data for a town that may not have records available. https://climate.weather.gc.ca/index_e.html

As we said in class, you may need to use a smaller set of data rather than using every point available, especially if you are using the TI84 or plotting by hand. (i.e. you almost certainly will need to simplify the data!) Excel or Google Sheets will manage a lot more data in terms of sorting, doing calculations, plotting, etc. but that is not a requirement. Interpreting and organizing data is part of this assignment and demonstrating that you can do this in an actual real-life situation shows a high degree of skill and understanding.

Q: Finding a sinusoidal model.
A: You can use any of the methods mentioned in the assignment. In all cases it helps to look at a scatter plot/STATPLOT to see what you're doing. There are similar questions in 5.3, 5.5 in the textbook. (It's either the "Bay of Fundy" type of question or doing a regression.)

And remember, using technology and looking really professional is excellent but you can do a good assignment by keeping things simple.
 
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Mar 25th, 2020 at 9:52am

Miss Brooks   Offline
YaBB Teacher

Posts: 803
 
Q: How do we fill out the Learning Log?

A: Answer yes or no to attendance. It is just a reminder. For the duration put the time you actually spend each day. You need to do 110 hrs work in the course to earn the credit and we have 30 hrs left to go. We need to keep track of that. 
 
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