Tuesday 25 September 2012

EOY

Here are some information about the paper:

Duration: 2 hr 30 min
Total marks: 100

40% of paper on Term 1 and 2 topics:

Algebra and algebraic fractions

Linear graphs

Quadratic equations and graphs

Area, perimeter, volume and surface area

Pythagoras' Theorem

Indices

60% of paper on Term 3 and 4 topics:

Standard form

Congruence and Similarity

Area and volume of similar figures and solids

Basic trigonometry

Matrices

Probability

Simultaneous equations and graphs

Set notation and venn diagrams

Direct and inverse proportion

Set Language : Class CN-ECT activity

S205 Responses

Questions:

Do you agree with your friends' responses?

Some said F = J while others disagree? Comment.

Wednesday 5 September 2012

Proportion: Direct and Inverse Answer Key

Perpendicular Bisector

A perpendicular bisector of a line segment is a line segment perpendicular to and passing through the midpoint of (left figure). The perpendicular bisector of a line segment can be constructed using a compass by drawing circles centered at and with radius and connecting their two intersections. This line segment crosses at the midpoint of (middle figure). If the midpoint is known, then the perpendicular bisector can be constructed by drawing a small auxiliary circle around , then drawing an arc from each endpoint that crosses the line at the farthest intersection of the circle with the line (i.e., arcs with radii and respectively). Connecting the intersections of the arcs then gives the perpendicular bisector (right figure). Note that if the classical construction requirement that compasses be collapsible is dropped, then the auxiliary circle can be omitted and the rigid compass can be used to immediately draw the two arcs using any radius larger that half the length of .Angle Bisector

The (interior) bisector of an angle, also called the internal angle bisector (Kimberling 1998, pp. 11-12), is the line or line segment that divides the angle into two equal parts.

A. Constructing Perpendicular Bisector

B Angles Bisector

Monday 27 August 2012

Task 1 Part 1: Explore the following graphs or information given and observe the following: .1 patterns or repeated behaviours .2 the variables exist in the information eg. time is changing .3 the relationship between the variables .4 is there a factor for change eg. values are tripled
Comment as a post

information 1