# Year 7 Mathematics program 2004

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```					Bomaderry HS Year 9 Mathematics program 2005

Topic 6:                     Perimeter and area                               Suggested time:         2 weeks

Report outcome(s)            Calculates the perimeter and area of various plane shapes

Syllabus Ref                                           Knowledge and skills                                   Reg

MS4.1               Converting between metric units of length                                                   
MS3.1               Calculating the perimeter of squares, rectangles and triangles                              
MS4.1               Calculating the circumference of a circle                                                   
MS4.1               Using Pythagoras’ Theorem to find the length of sides in right-angled triangles             
MS4.1               Developing and using the formulas for the area of squares, rectangles and triangles         
MS4.1               Calculating the area of composite figures comprising rectangles and triangles               
MS4.1               Developing, by practical means, the formula for the area of a parallelogram                 
MS4.1               Calculating the area of a circle                                                            

MS4.1               Calculating the perimeter of simple composite figures                                       
MS4.1               Converting between metric units of area
Developing and using formula to find the area of quadrilaterals – kite or rhombus,
MS5.1.1                                                                                                         
trapezium

MS5.2.1             Calculating the perimeter of sectors                                                        
Calculating the perimeter of composite figures by dissection into triangles and
MS5.1.1                                                                                                         
MS5.2.1             Solve practical problems involving perimeter                                                
MS5.2.1             Calculating the area of sectors                                                             
Calculating the area of composite figures by dissection into triangles and special
MS5.1.2                                                                                                         
Calculating the perimeter of composite figures by dissection into triangles, special
MS5.1.2                                                                                                         
Calculating the area of composite figures by dissection into triangles, special
MS5.1.2                                                                                                         
MS5.2.1             Finding the area of an annulus and ellipses                                                 

MATHEMATICS STAGE 5                        June 2005                                                  Page 1 of 3
http://www.curriculumsupport.nsw.edu.au/
Bomaderry HS Year 9 Mathematics program 2005

Textbook references                     Resources                         Technology
New Signpost 9 Chapter 7                                                   Use a spreadsheet to apply
Connections 9 Chapter 4                                                    formula such as Heron’s and
Signpost 9 Int Chapters 8 & 13                                             Brahmagupta’s
Language
Annulus, area, circumference, composite figure, hectare, kite, perimeter, Pythagoras, quadrant, rhombus,
sector, semi-circle, trapezium

Suggested activities - Working mathematically

Students learn to:
 Find the radii of circles given their circumference or area
 Investigate  as being the ratio of a circles circumference and diameter
 Identify different possible dissections for a given composite figure and select an appropriate
dissection to facilitate calculation of the area

Assessment strategies used:                       Teacher evaluation of topic

How did the unit ‘rate’ in
              Class topic test                       these areas ?
              Assignment
Time allocated for topic
              Bookwork
Student mastery
              Practical work
              Short questions                Suitability of resources
Variety of teaching modes
        Other                                Appropriate technology used
________________________                      Literacy strategies used

Date commenced:                                    Date completed:

MATHEMATICS STAGE 5                        June 2005                                          Page 2 of 3
http://www.curriculumsupport.nsw.edu.au/
Bomaderry HS Year 9 Mathematics program 2005

MATHEMATICS STAGE 5                        June 2005   Page 3 of 3
http://www.curriculumsupport.nsw.edu.au/

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