Talk:Trigonometry/Plotting (Cos t, Sin t)

Define sin cos and tan first?
Shouldn't we define sin, cos and tan before we get here?--Wisden (talk) 10:34, 2 December 2010 (UTC)


 * No. We're getting the students familiar with the functions first.  They have it as buttons on their calculators.  This plotting exercise is really crucial and needs to come in early.  See Trigonometry/Teachers_Notes/About_This_Book.  The soh-cah-toa 'definition' is inferior on many accounts, (limit to 90 degrees; loses sight of fact that this is about triangles with hypotenuse of length one).


 * A teacher who does not like this approach can tell the students to read the pages in a different order, or the teacher can use the more conventional K-12 trig book instead. Part of the motivation for this trig book is to question conventional ways of teaching, using insight that comes from having used trig for real.  JamesCrook (talk) 13:52, 2 December 2010 (UTC)

Windows
Why Windows? :o --Nemo bis (discuss • contribs) 17:28, 11 April 2017 (UTC)