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Irrational numbers

Subject: Mathematics

Grade: Lower Secondary

Publisher: YDP

Resource types: Whiteboard presentation

Resource ID: e3475
Description:

At the end of this activity, students should be able to:
understand and recognise irrational numbers
- simplify expressions containing irrational numbers
- rationalise denominators
- approximate irrational numbers.

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Irrational numbers Class activity

Consists of...
Numbers that are no... Animation Rational numbers Whiteboard exercise Irrational numbers Whiteboard exercise Sets of rational nu... Whiteboard exercise Addition and subtra... Whiteboard exercise Irrational numbers ... Whiteboard exercise The sum and the dif... Whiteboard exercise Rules of multiplica... Animation Multiplication invo... Whiteboard exercise Product of irration... Whiteboard exercise Reciprocal of irrat... Whiteboard exercise Division involving ... Whiteboard exercise Results of division... Whiteboard exercise Examples of rationa... Animation Transforming the fr... Whiteboard exercise Rationalising the d... Whiteboard exercise Irrational numbers ... Animation Approximating squar... Whiteboard exercise Approximating squar... Whiteboard exercise Decimal approximati... Animation The value of square... Whiteboard exercise The value of recipr... Whiteboard exercise Finding an approxim... Whiteboard exercise

Relevant to...

Secondary School

Lower Secondary (Grades 7-9)

Mathematics

Numbers (2)

115. Irrational numbers

YDP SA

Keywords

numbers, number, denominator, irrational, arithmetic, Irrational numbers

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