## Tuesday, October 19, 2010

### mathematics practice

spm mathematics tips........

paper 1: - 40 Question
- 40 marks
- 1h 15 m

paper 2: - 2h 15 m
- working steps must be done
- section a
- 52 marks
- 11 Question
- section b
- 48 marks
- 5 Question

confirmed to be tested every year........
paper 2 ( section A)

1. Volume of solid
- most of the formula are given for this question.

2. Angles of elevation and depression
- using trigonometry rule......

3. mathematical reasoning

4. simultaneous linear Question

5. the straight line
- y= mx + c
- gardient

6. matrices
-inverse matrix*

7. Quadratic Expression and equation

8. Area and perimeter of the circle...

9. probability

10. Gradient and area under a graph
- based on speed/time
-distance is area of the graph
- speed is based on the graph.

Paper 2 ( section b) answer 4 question.

1. graph of function.
- Linear functions (less likely to come out as it’s a straight line after plotted)
- Quadratic functions (2004 and 2005)
- Cubic functions (2007)
- Reciprocal functions (2006)
- this question is easy because you can detect the type of graph after you plot it.
-  elastic ruler is recommended
- x-axis and y-axis should be stated in the graph

2. Transformation
- Translation
- Reflection
- Rotation
- Enlargement ( careful with the word ‘to’ and ‘from’ because it determines the image   would be smaller or bigger)
- combination of transformation like VT
- do T before V. It's some kind of law.

3. Statistic
- Histogram ( 2004 and 2005)
= x-axis the upper boundary with an additional lower boundary at the front of the graph
= y-axis is frequency
- Frequency Polygon (2006)
= x-axis is midpoint
= y-axis is frequency
- Ogive (2007)
= x-axis is upper boundary
= y-axis is cumulative frequency
= additional upper boundary should be added to the table
= x-axis and y-axis should be stated in the graph

4. Plans and elevations
- well I’m not sure but what I can see is you must be able to imagine the solid from every side
-plan is looked from above
-elevation is looked from the side of the solid
-the length and the edge (ABCD) should be stated correctly
-similar to a chapter of the living skills in PMR

5. Earth as a sphere
- no comment because I’m not going to explain something that I’m not sure
-latitude is vertical and longitude is horizontal of the sphere
-nautical mile