Press Association
Youth activists demand an end to fossil fuels
Fridays for Future activists launch a demand for a Fossil Fuel Non-Proliferation Treaty at COP26. Spokespeople are Luisa Neubauer, Farzana Faruk Jhumu and Mitzi Jonelle Tan
AFP News Agency
CLEAN : Tunisia massacre hotel sees hope in rebirth
Some guests are in the jacuzzi as others top up their tans by the pool
Press Association
Sunak: “I'm having the time of my life” campaigning for the top job
Tory leadership candidate Rishi Sunak talks about enjoying the campaign - making a joke about his 'tan', talks about the need to tackle inflation before cutting taxes and says he is the man to unite the party and win a 5th term in...
AFP News Agency
VOICED : Hija de Castro por matrimonio gay
VOICED : Hija de Castro por matrimonio gay
Curated OER
Intro to the Trigonometric Ratios
This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios of sine, cosine, and tangent using the SOH-CAH-TOA mnemonic. This resource could be used as...
Khan Academy
Khan Academy: Trigonometry: Graphs of Trig Functions
Video exploring the graphs of the basic trigonometric functions. Effects of changes in the equation of the sine function to the period and the amplitude of the graph are shown. Includes link to additional practice problems. [10:17]
Khan Academy
Khan Academy: Trigonometry: Using Trig Functions Part Ii
Continuation of video lesson using the basic trigonometric functions to determine unknown side lengths of a right triangle. Example shows using trigonometry as well as the Pythagorean Theorem to find the length of the third side of the...
Khan Academy
Khan Academy: Trigonometry: Navigation Word Problem
Video showing how to solve a navigation word problem with speeds and distances using trigonometry. [8:00]
Khan Academy
Khan Academy: Trigonometry: Using Trig Functions
Video using the basic trigonometric functions to find the length of a side in a right triangle. Examples are given with angle measures in radians. Includes link to additional practice problems. [10:03]
Khan Academy
Khan Academy: Geometry: Ca Geometry: More Trig
The video tutorial [12:21] demonstrates solutions to problems #66-70 of California Geometry released state test questions. Problems address basic trigonometry ratios, 30-60-90 triangles.
Khan Academy
Khan Academy: Trigonometry: Basic Trigonometry Ii
Continuation of video lesson introducing the basic trigonometric ratios. Examples of finding sine, cosine and tangent for two different right triangles, including finding side lengths by the Pythagorean Theorem and rationalizing the...
Khan Academy
Khan Academy: Trigonometry: Basic Trigonometry
Video introducing the basic trigonometry ratios sine, cosine, and tangent. Examples are shown for the two acute angles of a right triangle. Includes link to additional practice problems. [9:17]
Khan Academy
Khan Academy: Ca Geometry: Basic Trigonometry
Demonstrates solutions to problems #61-65 of California Geometry released state test questions. Problems address the equation of a circle, basic trigonometry. [11:04]