Lessons for F.TF.A.3
Exact values on the unit circleReading the values of the six functions where the terminal side lies on an axis.Lesson
Periodicity and the periodicity identitiesAdding a full turn returns to the same point, so every trig value repeats after one revolution.Lesson
Trig values of the special right trianglesReading exact sine, cosine and tangent values off the thirty sixty ninety and forty five triangles.Lesson
Unit circle symmetry and even-odd identitiesReflecting a terminal point across an axis or the origin changes only the signs of its coordinates.Lesson
Printable Worksheets
Exact values on the unit circle worksheet (PDF)Printable worksheet with answer keyPreview
Periodicity and the periodicity identities worksheet (PDF)Printable worksheet with answer keyPreview
Trig values of the special right triangles worksheet (PDF)Printable worksheet with answer keyPreview
Unit circle symmetry and even-odd identities worksheet (PDF)Printable worksheet with answer keyPreview