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Lucem Books: Mathematics 8 & 9
Accounting Work Books, Teacher Guides, Accounting Ektra exercise books, Mathematics, Transparencies, Accounting and mathematics posters, Accounting test and exams,
Rekeningkunde werkboeke, Onderwys gidse, Rekeningkunde ekstra oefening boeke, Rekeningkunde en wiskunde muur plakate
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Content of Mathematics Grade 8 & 9 |
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Topic |
Page |
Topic |
Page |
The number system
Types of numbers:
Natural numbers, whole numbers, integers, rational numbers, irrational numbers, real numbers, imaginary numbers and undefined numbers.
Different notations:
Set-builder, interval and graphic.
Multiples
LCM |
4-6
7-9
10 |
Factorising of a polynomial
HCF, brackets, groups, difference of two squares, quadratic trinomial
(With variables.)
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29-36 |
Square roots and cube roots
Square roots and cube roots of terms without variables.
Square roots and cube roots of terms with variables. |
10-12 |
Calculations with rational numbers. (Fractions)
Different types of fractions.
Multiplying, dividing, adding and subtracting of fractions.
(With and without variables.)
Simplify recurring fractions to common fractions. |
37-41 |
Calculations with integers
Multiplying, dividing, adding and subtracting.
With and without variables |
13 |
Exponents
Powers, multiplying of powers, dividing of powers, power raising, roots of powers.
Sequence of calculations. |
42-44 |
Algebra
Letters, numbers, variables, exponents, base, powers, coefficients, expressions.
Calculations with like and unlike terms.
Substitution.
Expressions as word problems. |
14-21 |
Scientific notation
With and without calculator.
With roots. |
45-47 |
Products
Monomial X monomial, monomial Xpolynomial (distributive law), binomial X
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| binomialand (binomial) |
2___________ |
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22-25 |
Equations
Linear, quadratic and word problems. |
48-52 |
Factors of a monomial (one term)
With and without variables.
The largest common factor of a binomial (two terms) and a polynomial (many terms).
Prime numbers
Combined numbers
The number 1 (one)
The number 0 (zero)
Inverses (Adding and multiplying)
Prime factors |
26-28 |
Functions and patterns.
Different representations of relations.
Number patterns, relations, equations.
Linear and quadratric relations.
Standard form of a straight line.
Cartesian plane, co-ordinate, graphic representation of relations.
Gradient/slope of a straight line.
Parallel and perpendicular lines.
Relations: Functions and non-functions. |
53-67 |
Topic |
Page |
Topic |
Page |
Ratio, rate and proportion
Ratio, division, increase, decrease and rate.
Direct and inverse proportion.
Graphic representation of proportion. |
68-72 |
Straight-line geometry
Angles: acute, obtuse, right, straight, reflex, revolution, adjacent.
Theorems about angles: vertical opposite, complementary, supplementary.
Theorems about triangles: interior angles, exterior angle, equal angles opposite equal sides, isosceles triangle.
Pairs of angles: corresponding angles, alternate angles, co-interior angles.
Lines: cut, perpendicular and parallel lines. |
104-109
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Finances
Percentage, profit, cost price, selling price.
Simple and compound interest.
Hire-purchase, inflation, depreciation, exchange rate, rent, commission. |
73-79 |
Transformation
Translation, reflection, rotation, reduction and enlarging at the origin. |
80-88 |
Congruency
Conditions + examples |
110-113 |
Size and measurement
Measure units and conversion.
e.g. Km.; Hm.; Dm.; m.; dm.; cm.; mm. |
89 |
Similarity
Conditions + examples |
114-117 |
Probability
Probability scale
Results
Set of results
Combined occurences
Relative frequencies
Represented in a table
Tree diagram
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90-92
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Two-dimensional shapes and measuring
The circle: characteristics, area and circumference.
Polygons: triangles, tetragons, pentagons, hexagons, heptagons………
Regular and irregular polygons.
Tessalations
Triangles: isosceles, equilateral, right- angled. Theorem of Pythagoras.
Area of triangles.
Quadrilaterals: trapezium, parallelogram, rectangle, rhombus, square and kite. Definitions and characteristics of quadrilaterals. |
118
119
120
120-121
122-126 |
Statistics
Definition, steps, collection.
Organising: frequency table and stem- and-leave diagram.
Graphic representation: bar graph, histogram, frequency polygon, broken-line graph, scatter graph, sector diagram and pictogram.
Calculations: arithmetic mean, median, mode.
Measures of tendency: range, interquartile spread of data.
Rejection/acceptance/consequences. |
93-103 |
Three-dimensional shapes and measuring
Surface areas and volumes of a cone, sphere, pyramid and prism.
Different prisms.
Polyhedra:
tetrahedra, dodecahedra, octahedra…….
Regular and irregular polyhedra.
_____________________________ |
127
128-129
130-132 |
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