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Show 4: Teaching Trigonometry ­ Show Notes

1

February 20, 2012

Jan 30­12:25 PM Sep 5­01:46 PM

Learn Xtra Schedule

Learn Xtra Grade 10:  Number & Number Patterns

Learn Xtra Grade 11: Quadratic Inequalities

Learn Xtra Grade 12: Financial Maths

Sep 5­01:46 PM

Supplementary Exam School

21 & 23 Feb         9:00 ­ 15:00 Maths Paper 1

24 Feb  9:00 ­ 15:00 Maths Paper 2

Learn Xtra Schedule

Sep 5­01:46 PM

Weekend

Saturday Grade 12

Mathematics 9:00 ­ 10:30

Highlights of Weekday Live

Mathematics 15:00 ­ 15:30

Sunday Grade 11 & 10

Mathematics 9:00 ­ 10:30

Highlights of Weekday Live

Mathematics 15:00 ­ 15:30

Learn Xtra Schedule

Sep 5­01:46 PM

Learn Xtra HelpDesk

Telephone: 086 1058 262

Email:   helpdesk@learnxtra.co.za

Facebook www.facebook.com/learnxtra

Sep 5­01:46 PM

Trigonometry

1. Approaches to teaching trigonometry

2. What's new for Grade 10 ( CAPS)?

3. Progression and links to other topics

Show 4: Teaching Trigonometry ­ Show Notes

2

February 20, 2012

Sep 5­01:46 PM

1. Approaches to teaching trigonometry

Investigative Approach

• Graph paper, drawing pins, string

•   Similar Triangles

Sep 5­01:46 PM

Sep 5­01:46 PM

2. What's new for Grade 10 ( CAPS)?

Define reciprocal ratios for:

sinθ

cosθ

tanθ 

Sep 5­01:46 PM

3.  Progression and links to other topics

Definition of ratios ( triangles)

­ Calculator skills

­ reciprocal ratios

Cartesian plane (00 ≤ θ≤ 3600)­ Quadrants I ­ IV

( ­3600 ≤ θ≤ 3600)

­ graphs of functions

Trig Equations

Trig Identities

2D trig problems

3D trig problems

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