Teacher's Guide - Pearson

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c h a p t e r5 MatricesSyllabus: General objectiveThis chapter deals with matrices and is an extension of the work covered in Form 2.In this chapter, students learn how to work with 4 3 4 matrices and some of theoperations that are applicable to matrices.Specific objectives• y Multiply matrices that comprise up to 4 columns and 4 rows.• y Investigate the properties of associativity, commutativity and identity of 2 3 2matrices in arithmetic computations.Ensure that students can manipulate matrices algebraically and use a calculator toperform calculations that involve matrices.AnswersSupport Activity 5.1 (Student’s Book page 76)1. Monday(2 3 1Tuesday 1 1 0Thursday 3 2 2Saturday 2 1 32. Meat(42.00Milk 7.50Bread 8.503. No, they are not in the same order.((Extension Activity 5.1 (Student’s Book page 76)1. 0 5 no incident of influenza passing from one person to another1 5 one incident of influenza passing from one person to another2. Column A: from whom person A caught influenzaColumn B: from whom person B caught influenzaColumn C: from whom person C caught influenzaColumn D: from whom person D caught influenzaChapter 5: Matrices27
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IntroductionThis Teacher’s Guide
Page 14: Extension Activity 1.1 (Student’s
Page 18: Activity 1.3 (Student’s Book page
Page 24: 2c h a p t e rPatterns and sequence
Page 28: Exercise 2.3 (Student’s Book page
Page 36: Homework Exercise (Student’s Book
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Page 56: multiply by 1.3 and then by 0.7, bu
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Page 80: 6r e t p a h c TrianglesSyllabus: G
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Page 92: 7c h a p t e rThe Pythagoreantheore
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10c h a p t e rPlans, elevations an
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e)planf)frontsideplanfrontsideActiv
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Activity 10.6 (Student’s Book pag
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Exercise 11.2 (Student’s Book pag
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∴ 3x 2 2 12x 5 0✓∴ 3x(x 2 4)
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Extension Activity 12.3 (Student’
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Note: It can be pointed out to stud
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2. a) V a5 3 10 2 3 30 5 9 424.8 c
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Project (Student’s Book page 257)
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3. Speed 5 ________ distancetime
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2. _______ 3a 1 4b ab2xy 2 x3
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f) 2x(4x 2 1 4x 1 1)5 8x 3 1 8x 2 1
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Homework Activity (Student’s Book
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Question 44.1 8x 3 1 64y 3 (3)4.2
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7. j 5 258. w 5 7__4 9. n 5
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∴ (x 2 30)(x 1 7) 5 0∴ x 5 30 m
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4. 1__ (2 1 x)x 5 242∴ x 2
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Extension Activity 18.2 (Student’
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6. 5.75 3 100 5 575 bacteria7. T 2
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19r e t p a h c Processing data and
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4. a) Age last birthday Frequency A
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2. a) 200b) 31-40 years was the mos
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35Marks scored in a Mathematics tes
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c) Cumulative frequency of time of
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c) About 1 800 studentsd) Out of 2
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iii) Mass in kg Frequency Middle va
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21c h a p t e rScatter graphsSyllab
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2. a) Water used against average gr
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23c h a p t e rResearch skills: Dat
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Assessment 4Question 11.1 a) Two wi
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OR üüü (3)b) ___ 212 = 1
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Sample Examination Paper 2 Answers:
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Question 1111.1 Figure L is the ref
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18.1 x 22 21 0 1 2x 2 4 1ü 0ü 1 4
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Question 2121.1 ü (1)21.2 132 rpm
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Teacher's Guide - Pearson

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