Students in a school are often classified into primary and secondary or junior and senior. What is the criterion that is used? Do you think this is a useful classification? Discuss.
The criterion used for classifying students into primary and secondary or junior and senior is the level of education or age group. This is similar to how economic activities are classified based on the nature of activity. The context suggests that the criterion for classification depends on what we desire to find out.
This classification is useful because the process of classification helps to analyse a situation. Just as classifying economic activities allows us to analyse patterns of total production and employment, classifying students helps in managing educational standards and addressing the specific needs of different groups effectively.
Explanation
The textbook context in the 'Let's Recall' section explains that classification criteria vary based on the purpose of the inquiry. For economic sectors, the criterion is the 'nature of activity'. Applying this logic to the school scenario, students are classified by their educational level. The text emphasizes that the primary utility of any classification process is to 'analyse a situation', such as analysing production patterns in economics or managing academic progress in schools.