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

## US5251 6TH October 2011 2 credits

## Lesson 1 16th September

The following applets were usedApplet 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.shtmlapplet SOH CAH TOA

## Pythagoras (3 sides)

http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/pythagorastheoremrev1.shtmlApplet 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.shtmlApplet Trig Non Right Angle Area

## The Sine Rule (2 sides and 2 angles)

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

## The Cosine Rule (3 sides and 1 angle)

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

Applet Cosine Error

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

Applet Trig Data Projector

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