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Irrational NumbersIrrational numbers are decimals that do not terminate or recur. is probably the most famous of irrationalnumbers and is the ratio between the circumference and the diameter of a circle. Irrational numbers werecalled ‘incommensurable’, as they could not be found exactly nor could they be plotted on a number line.However Pythagoras’s theorem showed clearly that irrational numbers do have a specific size that can bedrawn accurately.Another way of showing learners visually how different numbers fit together is to use concentric circles.Representation 3: Visual representation of types of numbers using concentric circlesReal Numbers:Rational and irrational numbersRational numbers:Integers and fractions3/5Integers:Whole numbers andnegative numbers7/8120.345...½-3Wholenumbers:Naturalnumbersand zeroNaturalnumbers1, 2, 3, ...-120.6660-7-350.54-2/38Imaginarynumbers44
25. Practice and ReflectionYou are expected to complete the activities relating to Unit. Remember that mathematics is a skill - youneed to practice in order to master the outcomes.Demonstrate your understanding of the definition of numbers by copying the table and putting an X inthe columns that define the number. Hand in your completed table. Remember, some numbers mayfulfill the requirements for more than one type of number.8Natural Whole Integer Rational Irrational Imaginary0-34,42112-0,41216234830,32050,370 93 2745
Page 3 and 4: Table of ContentsLearning Outcome (
Page 5 and 6: 1. Rules for Divisibility .........
Page 8: STUDY LETTER 2012Faculty of Educati
Page 11: Proposed Planning for 2012Please ta
Page 15 and 16: Assessment of Module PICM201Assessm
Page 17 and 18: Introductory Discussion What is Mat
Page 19 and 20: mathematics teachers are afraid tha
Page 21 and 22: 2. The Curriculum Assessment Policy
Page 24 and 25: 4. Why do we learn maths at school?
Page 26 and 27: Perfect SquaresIntegersPerfect numb
Page 28 and 29: Is zero an even number?Practical Ac
Page 30 and 31: QUESTION: How many Prime numbers ar
Page 32 and 33: Can the factors of a given number a
Page 34 and 35: Example 2:Write 24 as a product of
Page 36 and 37: 12. Factors and Factorisation: What
Page 38 and 39: 14. Composite NumbersExcept for the
Page 40 and 41: Practical ActivityAs an investigati
Page 42: 20. Discovering MULTIPLES using the
Page 45: When we start counting as young chi
Page 49 and 50: According to the RCNS all learners

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