sine.jpgUS5251 6TH October 2011 2 credits


Lesson 1 16th September

The following applets were used
Applet Pythag
Applet Pythag Practise
applet SOH CAH TOA
Applet Visual understanding SOHCAHTOA
Applet Right Angle Triangles All
Applet Advanced Pythag and Trig
Applet Trig Non Right Angle Area
Check out the year 10 Trig page Year 10 Trig
http://2011maths.wikispaces.com/Year+10+11th+August+Lesson

Lesson 2 and 3 pages 1 to 6 in the learning workbook.
Learning Workbook Page 1 to 14

20th September Wednesday

The Sine Rule - using the link below.
Pages 7, 8 and 9 (Complete for Homework)

21st September Wednesday

The Cosine Rule - using the link below.
Pages 10 to 12 (Complete for Homework)
Key Idea: label the triangles that same for the Sine and Cosine Rule.
The Sine rule is used when 2 sides and 2 angles are involved.
The Cosine rule is used when 3 Sides and 1 angles is involved.
Applet Trig Cosine Rule
Special Case...Applet Cosine Error
Applet Trig Sine Rule

22nd, 26th, 27th September

working through the workbook and then through 6 worksheets

Content

For Right Angle Triangles only

SOH-CAH-TOA (2 sides and 1 angle)

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/trigonometryrev1.shtml
applet SOH CAH TOA

Pythagoras (3 sides)

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/pythagorastheoremrev1.shtml
Applet Pythag
Applet Pythag Practise
Applet Right Angle Triangles All

For all triangles - including non right angle triangles

Area of a non right angle triangle

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/furthertrigonometryhirev3.shtml
Applet Trig Non Right Angle Area

The Sine Rule (2 sides and 2 angles)

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/furthertrigonometryhirev1.shtml
Applet Trig Sine Rule

The Cosine Rule (3 sides and 1 angle)

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/furthertrigonometryhirev2.shtml
Applet Trig Cosine Rule
Applet Cosine Error

Formulae are given - you need to substitute the correct values!

Applet Trig Data Projectorstarter_year_12_trig.jpg

http://maths.nayland.school.nz/Year_12/AS_28_Triangles/Triangles_home.htm