Hipparchus (c. 190 – c. 120 BC) was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry, but is most famous for his incidental discovery of the precession of the equinoxes.
TRIGONOMETRY
Some Old Hippie Caught Another Hippie Trippin' On Acid
Key questions
Do we recall Pythagoras' theorem?
What is trigonometry?
How do we find sides and angles in right-angled triangles?
What are the exact trigonometrical ratios?
What is the sine rule?
What is the cosine rule?
How do we find the area of a triangle?
Can we problem solve with trigonometry?
8 lessons
Literacy
stories that set a frame or background
stories that accompany or intertwine
stories that introduce
stories that explain
stories that ask a question
stories that entertain
Introduce...
Pythagoras variation - 1, 8
naming the sides - 2
the unit circle - 2
when the hypotenuse is one - 2, 3
via similar triangles - 2, 3
introducing trigonometry - 2, 3
progressive overload - 1, 3
trig variation - 3, 8
height of trees - 3, 8
trig don - 3
Develop...
multi-step trig - 3, 8
trig pile-up - 3, 8
3d trig don - 3, 8
3d trig maths4everyone - 3, 8
trig in 3d - 3, 8
trig assessments - 3
exact values - 4
exact values don - 4
wordy trig - 3, 8
exam questions - 1, 3, 4, 5, 6, 7
Extend...
law of sines - 5
law of cosines - 6
cosine rule don - 6
sine and cosine matchup - 5, 6
sine and cosine puzzle - 5, 6
basic equations and the ambiguous case - 2, 5, 8
sine rule don - 5
circle rings - 8