# Plan OER Structure Part 1A: Outline **URL:** \ **Category:** CMAT 1223 Trigonometry\ **Created:** [February 3, 2023, 3:37pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434 "2023-02-03T15:37:11Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![jeusea](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/jeusea/32/1493_2.png) [@jeusea](https://forum.rebus.community/u/jeusea)\ **Post date:** [February 3, 2023, 3:37pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/1 "2023-02-03T15:37:11Z")
Trig Cohort - Let’s draft the outline of our OER below to include all the parts or chapters that we envision. ---
**Author:** ![ddensmore](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/ddensmore/32/1455_2.png) [@ddensmore](https://forum.rebus.community/u/ddensmore)\ **Post date:** [February 3, 2023, 5:03pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/2 "2023-02-03T17:03:53Z")
Below is what I envision as the course outline. Chapter 1 - Trigonometric Functions; Angle relationships, similar triangles, definitions of trig functions and using the definitions Chapter 2 - Right triangle trig: Trig for acute and non acute angles, Solutions and applications of right triangles, Chapter 3 - Non Right Triangle Trig: Law of Sines and Cosines, Chapter 4 - Radians and the Unit Circle: Include applications of radians such as arc length, linear and angular velocity Chapter 5: Graphing of Trig Function and their inverses Chapter 6: Identities: Proving identities, Chapter 7: Solving Trig Equations Chapter 8: Vectors: Definitions and applications ---
**Author:** ![Yi\_Zhen](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/yi_zhen/32/1523_2.png) [@Yi\_Zhen](https://forum.rebus.community/u/Yi_Zhen)\ **Post date:** [February 7, 2023, 6:56pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/3 "2023-02-07T18:56:59Z")
Discussion: In order to build prior knowledge influenced learning process, the considerations are as follows: (1)Combining the concepts of angles and triangles of chapter 1 and chapter 4 to be the first chapter. (2)Adding one chapter for Trigonometric Functions after chapter 3. (3)Combining chapter 6 and 7 into the chapter of “Trigonometric Equations and Identities”. Thank You. ---
**Author:** ![bkunwor](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/bkunwor/32/1456_2.png) [@bkunwor](https://forum.rebus.community/u/bkunwor)\ **Post date:** [February 10, 2023, 8:16pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/4 "2023-02-10T20:16:59Z")
Thank you, Donna and Yi, for your input. I fully agree with Yi’s suggestion to integrate radians and unit circles beforehand. I believe it would be beneficial for us to have a brief zoom meeting to discuss our thoughts on the chapter organization and then reach a consensus as a team regarding the sections and chapters. These are my initial thoughts: Chapter 1: Right-Angled Trigonometry & Unit Circle - Angles & triangles, similar triangles, and equation of a circle - Radians and the Unit Circle - Include applications of radians such as arc length, linear and angular velocity - Right-angled triangle, Pythagorean theorem, and definitions of trig functions - Solutions and applications of right-angled triangles - Use reference angle to find trig function values. - Use calculators to find any trig function values. - Reciprocal functions Chapter 2: Periodic Functions. - Graph of sine and cosine functions - Transformation of sine and cosine functions - Inverse functions Chapter 3: Trig functions and Identities - Proving Identities, - Sum and Difference Formula, - Double and half-angle formulas - Solving trig Equations Chapter 4: Non-Right Triangle Trig - Law of sines - Law of cosines Chapter 5: Vectors - Rectangular Co-ordinate System and vector representation - Vector decomposition and applications Chapter 6: Polar Co-ordinates and Graphs - Polar co-ordinates - Polar graphs ---
**Author:** ![ddensmore](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/ddensmore/32/1455_2.png) [@ddensmore](https://forum.rebus.community/u/ddensmore)\ **Post date:** [February 13, 2023, 11:16pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/5 "2023-02-13T23:16:10Z")
I could go either way. I have always done triangles first. Either way, I think your version of chapter 1 could be split since the other chapters have no more than 4 topics. ---
**Author:** ![hkim](https://avatars.discourse-cdn.com/v4/letter/h/fbc32d/32.png) [@hkim](https://forum.rebus.community/u/hkim)\ **Post date:** [February 14, 2023, 4:34pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/6 "2023-02-14T16:34:43Z")
It looks good. I agree with Donna’s opinion to split the first chapter. And I want to remove Ch 5 because there are already too many topics to cover during one semester. ---
**Author:** ![bkunwor](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/bkunwor/32/1456_2.png) [@bkunwor](https://forum.rebus.community/u/bkunwor)\ **Post date:** [February 15, 2023, 1:11am UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/7 "2023-02-15T01:11:40Z")
Excellent idea, Donna and Kim. To clarify, we suggest splitting chapter 1 and removing chapter 5. By the way, do you have a preference for which book we should adopt? ---
**Author:** ![ddensmore](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/ddensmore/32/1455_2.png) [@ddensmore](https://forum.rebus.community/u/ddensmore)\ **Post date:** [February 15, 2023, 4:46pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/8 "2023-02-15T16:46:07Z")
If we remove a chapter I think it should be Chapter 6. That is optional in most course descriptions. ---
**Author:** ![ddensmore](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.rebus.community/ddensmore/32/1455_2.png) [@ddensmore](https://forum.rebus.community/u/ddensmore)\ **Post date:** [February 15, 2023, 4:46pm UTC](https://forum.rebus.community/t/plan-oer-structure-part-1a-outline/8434/9 "2023-02-15T16:46:52Z")
I still like the one I mentioned initially. It words well for high school and community college.