Motivation Follow the steps below to collect data from your classmates and organize it. Form a group of 4 to 5 students and collect data from your group members. Record the data on a batch of cards. The following shows an example. Student’s Record Card Student Name: Chan Tai Man Class Number: 13 Age: 15 Sex: M

Motivation Sort all the cards in ascending order of the class number and write down the data in the following table. Student name Class number Age Sex

Motivation Sort all the cards in ascending order of age and write down the result in the following table. Student name Class number Age Sex

Motivation Is it efficient to organize the collected data without a computer? Why? __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ No. It is because: It is tedious and time-consuming to write down the data on record cards. It is hard to manipulate the data (e.g. searching, sorting, merging, etc.). We need to redraw the table for different classifications. (or any reasonable answers)

Motivation Is it efficient to organize the collected data without a computer? Why? __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ No. It is because: It is tedious and time-consuming to write down the data on record cards. It is hard to manipulate the data (e.g. searching, sorting, merging, etc.). We need to redraw the table for different classifications. (or any reasonable answers)