Maths Yr 9

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Thursday, November 10, 2005

Math’s Topics By Dilshan seneviratna

Math’s Topics By Dilshan seneviratna



NOTHING ELSE WILL BE IN TEST (at least that’s what our teacher said) (no guarantees)


  1. Algebra
-expansion
-factorisation
-binomial products
-trinomials
-perfect squares
-difference of perfect squares
-factorisation in groups

  1. Consumer Arithmetic
-salary
-wage
-commission
-overtime
-income tax
-best buy
-purchases in instalments
-successive discounts
-NO COMPOUND INTEREST
-simple interest
-Medicare levy

  1. Geometry
-angles
-triangles
-Quadrilaterals – all properties
-polygon
-all stuff on angles
-NO SIMILARITY
-proofs
-congruency
-triangle

  1. Surds + Indices
-standard notation
-everything, addition, multiplication etc.

  1. Graphs in practical situations
-All types of graphs – pie, step, travel etc.
-Rates – filling tanks etc
-variation+inverse variation

  1. Equations
-All linear equations
-simultaneous
-changing the subject
-problem solving
-absolute value
-surdic equations

  1. Quadratic equations
-Solve by: factorising, completing square, formulae
-How many solutions? i.e. square root b squared minus four a c
-Remember exact value is in surd form

  1. Graphing – with asymptotes
-linear
-parabola
-cubic
-exponential
-hyperbole
-circle
-NO SEMI CIRCLES
-absolute value

  1. Co – ordinate Geometry
-distance
-midpoint
-gradient
-straight line
-parallel/perpendicular
-lines parallel to x/y axis

  1. Trigonometry
-sin cos tan only
-ONLY IN FIRST QUADRANT OF UNIT CIRCLE I.E up to 90 degrees
-bearings
-angles of elevations/depression
-reciprocal ratios
-complimentary ratios
-relationships between trig ratios
- IDENTITIES ARE EXTENTION – NOT IN TEST
-exact values
-Pythagoras
-exact values are only in first quadrant
- No ASTC

  1. Measurement
–all units eg. cm, m, km
-prefixes
-sig figs
-rates i.e. Km/h
-perimeter/are in circles
-volume
-surface area of prisms, cylinder, sphere etc.

  1. Basic Statistics
-nothing advanced
-NO STANDARD DEVIATION

Thanks a heap for your contributions Dilshan!!!

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