## Thursday, May 20, 2010

### Chapter 9.2 : Average Rate (Lesson 1)

Rate is a ratio between two quantities with different units of measurement.

Rate allows us to express a quantity as a proportion of another quantity thus enable us to make comparison between different quantity.

Examples of rate being used in our daily life are:
1) Speed of a car, where the distance is measured against time (Kilometer per Hour or Meter per Second)

2) Buying of food and drink, where the price is measured against the weight or volume (Dollars per Kilograms or Dollars per Litres)

3) Frequency of Buses (Number of buses in operation per Hour)

4) Heart Rate (Number of beat per Minute)

The examples of rate in our daily life in countless.....

Thus give 2 examples of the use of Rate in your life and briefly describe how you can make use of these information to help you make better decisions in your life.

Please also refer to your Textbook 1B from Pg 9 to 11 and your Ace - Learning Portal for more materials and examples.

### CHapter 5.1 : Like Terms and Unlike Terms

Dear 107s,

We are back into our study of Algebra....

Like English & Chinese, Mathematics is another form of communication between people and Algebra is an essential part of this language.

Thus, let us now get to find out more about the Algebraic Language...

The Algebraic Language

## Friday, May 7, 2010

### Chapter 16 : Data Handling Lesson 4

Dear 107s,

We are still looking at Statistics at the moment.

Often when we compare data, we heard about people comparing the MEAN, the MEDIAN and the MODE.

Thus what does this terms actually means?

Do an online search on the meaning of MEAN, MEDIAN and MODE and input the meaning under the comment section. Please also include in examples on how to determine the MEAN, MEDIAN and MODE in a data set.