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Trigonometric Ratios

Trigonometric Ratios

This (STAIR) activity will introduce the three geometric ratios (sine, cosine, tangent) and teach the relationships through a series of examples and activities. As you proceed through the project you will have an opportunity to learn these concepts. There are tutorials, guided examples, and links to additional resources which should all be used before proceeding to the quiz. The quiz portion has three different difficulty levels (Beginner,...

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Colin Gallagher
Colin Gallagher (Teacher (K-12))
12 years ago

I found your STAIR to be very thorough and quite challenging for me as I have not done trigonometry for about 15 years!

I thought it was a little word heavy at the start which put me off a bit. I don't know if the HS students need to know all the information in the second and third slide. I would probably slim it down to the bare essentials.
With UDL in mind I would have included some more audio feedback or assistance for learners who require that sort of instruction. But it was very much along the lines of UDL with the inclusion of a calculator and glossary to aide the learners with multiple means of representation. There were multiple means of expression with the different levels of quiz also.

Design wise, I felt the colors were a little muted; the quiz and home icons got a little lost with their size and color.

Overall, your students will be lucky to have this as a learning aide with such a tricky aspect of Math! They can take control of their learning and use it home to go over issues in their own time

Technical Remarks:

Nothing to note.

Time spent reviewing site: 40 minutes
Maria "Kit" Fishell
12 years ago

Your StAIR is very easy to use and to navigate. This helps the learner to not be intimidated while learning a lesson on Trigonometry. Adding a page for standards is a great way of communicating to the student the value of learning the skills after completing the StAIR. I think it is a great approach having a quiz at three skill levels. The way you presented the concept is very effective, I may suggest to give more practical and visual examples where we can use these concepts. I saw at the end of your page there is a .pdf page quiz with practical questions. If a student decided to print this out and solve the problems, an answer key page would be nice to verify his answers. Please correct me if I’m wrong, there were a couple of pages with Copyright marks from Holt, Rinehart and Winston. You may have already verified its terms and conditions of use, but just in case, it’s always a good idea to make sure it’s acceptable to distribute these pages online. You might also want to add a short note for the user to download and save the StAIR on their computer, then open it from where they save it. If the user directly opens the StAIR on MERLOT and clicks on the online calculator the calculator doesn’t open in a new window. It changes the current "quiz" window to the calculator causing the user to have to use the back button to return to the quiz. Overall, this is a well-put together StAIR.

Time spent reviewing site: I have spent at least an hour reviewing your StAIR.
Melissa White
Melissa White (Faculty)
12 years ago

Great lesson! Thanks for submitting.