Suggested videos related to Solving Trigonometric Equations

The following videos are suggested viewing to supplant instruction and support your efforts to master the skill of solving trigonometric equations.

Upon viewing any of these videos, it is suggested that you make comments to this thread geared toward supporting each other in your common quest to become proficient in solving trigonometric equations.


Math TV videos

Solving Trig Equations, Examples 1:

Solving Trig Equations, Examples 2:

Solving Trig Equations, Examples 3:



Harder Example 1:

Harder Example 2:

Harder Example 3:

Solving Using Quadratic Formula:

Solving Using Double Angle Identities, Example 1:

Solving Using Double Angle Identities, Example 2:

Solving Double Angle Identities, Example 3:


Good evening, everyone.

It is my understanding that some of you encountered significant difficulty with today’s portion of the Trigonometric Identity assessment.  Please know that such was not my intent.  In constructing the assessment, I made a concerted effort to select identities that resemble the whole of our experience in class.  

So, what do we do?

First, thank Sam and Kristen for bringing your frustrations to light; we can all learn from their self-advocacy and respectful assertiveness.

Second, I believe you all know that I am out for the week due to health reasons.  I hope to get a clean”er” bill of health this Saturday that returns me to the classroom at the conclusion of vacation.  That said, what do we do with this assessment?  I will post this email to our Blog Page so that those who do not necessarily check their emails might see the post there.  

Make your constructive forward-moving thoughts known.  When you respond please be sure to Respond to All.

In closing, I am looking forward to reading your suggestions, wish the Juniors a nice Assembly tomorrow, and wish you all a restful, safe, and healthy vacation.

Mrs. Maynard

Oklahoma’s Fight for the CCSS

**This message was shared on Facebook by a gentleman teacher who, at one time, served on the PARCC Educator Item Review Committee. …

To: Oklahoma Legislators

It is the eleventh hour. Decisions are being made on behalf of Oklahoma students and I MUST speak up. I am a public school educator with 31 years experience in Oklahoma (14 years), Kansas, and in the Department of Defense Dependent Schools in Germany. I am a mother and a grandmother. 

Sen. Josh Brecheen, R-Coalgate, stated, “H.B. 3399 will enable us to actually exceed Common Core, while making sure that those standards are developed and implemented by Oklahomans. I think Monday’s vote shows this was very important to the members of the Senate Education Committee as well.”

I think this statement indicates that Senator Brecheen, as well as other lawmakers, are not aware of the extensive work that Oklahoma educators have ALREADY done with Common Core. They have been working on test items with PARCC (until we pulled out of that consortium) and with Measured Progress, the state’s NEW testing vendor for Common Core standards. Oklahoma educators have developed and participated in extensive Professional Development to prepare teachers for Common Core as well as to develop and select materials aligned with Common Core.

Passage of this bill not only sends a message to teachers that their work was a misguided waste of time and unimportant, it also gives educators excuses like “This, too, shall pass.” 

Turning our back on this quality set of standards impacts teaching and learning for the next five years or longer. 
1) New standards will have to be developed by content experts (teachers!) who are already worn-out from the work of the past several years. Teachers who truly know their content and know instruction will be reluctant to pour blood, sweat and tears into yet another set of standards that our legislature can whimsically throw away at the slightest hint of displeasure from voters. Loser: Oklahoma students.
2) New standards require additional professional development for teachers once they are developed. This will require additional funding and time away from students. Loser: Oklahoma students.
3) New curriculum materials will have to be selected. Oklahoma will be hard-pressed to find textbooks that align with their standards if they differ greatly from Common Core Standards. This happened with Oklahoma’s Social Studies Standards in the past couple of years. Oklahoma is a small state by student population and textbook companies do not find it profitable to develop quality materials that align to a small state’s unique set of standards. Loser: Oklahoma students.
4) New state assessments must be developed. Been there, done that. Teachers and curriculum administrators have worked LONG and HARD on item development and item review committees the past couple of years. Our students are scheduled to field test new items for Common Core in a few weeks and school is being disrupted for something that will now be useless. Loser: Oklahoma students.
5) All of this development costs money. So, are we going to continue to flush money down the drain to do what has already been done through the good work of our dedicated educators over the last three years? Loser: Oklahoma students.

Bottom line: 
The standards are good. 
They are rigorous. 
We already have them. 
We have already developed assessments. 
Oklahoma educators HAVE been involved in the process.
They are better than anything we could develop on our own, independently, and in a matter of one to two years. 
Has the implementation had some bumps (like any worthy reform)? Yes. 
Have Common Core Standards become embroiled with the public’s (and yes, some teacher’s) disdain for testing? Yes.
Has an unfounded fear of federal intrusion become an obstacle for the Common Core Standards? Yes.
As a state, can we rise above the misinformation and fear to do what is right for our students and proceed with implementing these standards? I hope so. I urge you to vote AGAINST HB 3399 or any bill that will repeal Common Core State Standards.

Shirley Simmons, PhD
Assistant Superintendent, Educational Services
Norman Public Schools — feeling frustrated with Toni Slagleand 3 others.

Concept Mapping My Trigonometry Exam

To all PreCalculus Honors Students.
How do you feel about an alternative assessment such as this. I will await your comments.

Reflections on Holes in Graphs and Reasoning

This trimester in precalculus I’m taking a bit of a risk and trying an alternative final exam for the trigonometry unit. Students are building concept maps including each topic that we covered in the trig unit and the connections between them. (Full disclosure, I’m borrowing the format and rubric for this activity from @cheesemonkeySF and you can read the post here.)

I put a great deal of thought into why I think this exam is more effective then a traditional multiple choice test (like I did last year). Steve and I put a lot of time into trying to get students to see connections between concepts and to get them to truly understand the mathematics behind each individual concept. My goal is to help students become mathematical thinkers, not just people who can memorize certain steps in time for the final exam only to forget (or never actually learn)…

View original post 736 more words

College Board SAVE THE DATE!

Join us via live stream to learn about the College Board’s renewed commitment to delivering opportunity for all students. President David Coleman will make an exciting announcement about the redesigned SAT® and other initiatives.

View the live stream.
Wednesday, March 5, at 2 p.m. EST

On March 5, you will be able to access information and resources for students and educators