Math Trigonometry Set A 01 Using The Sine Ratio to Calculate the Numerator Mostly for Year/Grade 9 and 10
Over my forty years of teaching and tuition, so many people have struggled with understanding Trig and while teaching it uncounted times, I have trialled many different approaches. Students wanting to become an electrician in Australia, have to be proficient with Trig and it also comes into many unexpected areas of life. for some people (nowhere near everyone).
I used all of that experience to come up with the ‘order’ of teaching in these videos, which I am sure that some students will find invaluable to their success with Trig.
There are 2 basic approaches in teaching Trig. I am now convinced that it is better to first do all three of Sine, Tan and Cosine where the equations formed all have the unknown on the ‘numerator’, so that they all have the same method of equations solving. I believe this reduces introducing further complexity, especially for students who struggle with it. Then calculate the angles, followed lastly by dealing with right-triangles where the unknown is on the denominator.
This is much longer than I anticipated, but I am very happy with the finished product.
After 40 years of enjoyable and rewarding teaching, I still love and continue to teach. It still amazes me how I continue to still think of better ways of teaching mathematical concepts and I also continue to discover methods of explaining things that help students 'better' understand and become more successful at remembering the concepts.
A word of warning from what I have repeatedly seen over the years - most of my videos are placed in a logical or reasonably sequential order and if you watch the first or second video in a playlist and feel comfortable with the concepts, please go to the last video in the playlist to check if you really are okay. Each video in a playlist usually becomes progressively more complex and the 'latter' or 'last' video will often contain common assessment questions where students are known to make errors.
I also often include some revision / consolidation / mixture videos in the playlist which I know are crucial to assist with student success in assessments.
I hope that you find this very helpful and a blessing in your studies.
-
7:33
RobertPrestwidge
3 years agoMath Trigonometry Set A 03 Using the Cos Ratio to Calculate the Numerator Mostly for Year/Grade 9 and 10
57 -
8:59
RobertPrestwidge
3 years agoMath Trigonometry Set A 04 Mixture to Calculate the Numerator Mostly for Year/Grade 9 and 10
103 -
9:05
IntoMath Grade 10 Lessons
3 years ago $0.01 earnedTrigonometric ratios - Special angles - Trig identities - IntoMath
125 -
26:37
Practice Math with Caveman Chang
1 year agoSAT Prep: Everything You Need to Know about Trig Functions
125 -
13:45
Math Easy Solutions
7 months agoProblems Plus 19: Sum of Inverse Tan Series Using Exact Trig Ratios
1541 -
18:58
ThirdClassTeachers
2 years agoTrigonometry 01 - Exact Values 1
41 -
11:04
ThirdClassTeachers
2 years agoTrigonometry 02 - Exact Values 2
52 -
1:53
Math Test Prep Academy
1 year agoSAT Lesson 9 Math Test Prep: Triangles and Angles (solving for the sides and angles of triangles)
23 -
3:43
Practice Math with Caveman Chang
2 years agoBasic Trigonometry: Sinθ Cosθ Tanθ
30 -
4:09
mh-math
4 months agounit circle and trigonometric functions.
17