Active learning ideas
Data Exchange and APIs (Application Programming Interfaces) are the 'connective tissue' of the modern internet. In this topic, students explore how different software systems communicate by sending and receiving data in standardised formats like JSON and XML. This is a vital skill for Year 12 students as they move toward building integrated solutions that use external data sources, such as weather updates or social media feeds.
Activity 01
One student acts as the 'Client' and another as the 'Server'. The client sends a 'GET request' on a slip of paper; the server must find the requested 'JSON data' in a folder and return it in the correct format or send a 404 error code.
What is the role of an API in modern software?
Activity 02
In small groups, students use tools like Postman or a browser console to explore public APIs (e.g., OpenWeather or the Australian Bureau of Statistics). They must find specific data points and explain the structure of the JSON response to the class.
How is JSON structured for data exchange?
Activity 03
Students are given the same dataset in both JSON and XML formats. They must identify the pros and cons of each for a mobile app project, focusing on readability, file size, and ease of parsing.
What are the differences between REST and SOAP?
A few notes on teaching this unit
Watch Out for These Misconceptions
An API is a database.
An API is a messenger that requests data from a server; it doesn't store the data itself. Using a 'restaurant' analogy (API as the waiter, database as the kitchen) in a role-play helps clarify this distinction.
JSON is a programming language.
JSON is a data format, not a language. Having students manually write a JSON object to represent a 'Student' helps them see it as a structured way to organise information that many languages can read.
Methods used in this brief
Relational Database Modelling
Students design relational databases using entity-relationship diagrams and normalisation techniques. They construct complex SQL queries to manage and extract meaningful data.
8 methodologies
Cybersecurity Principles
Students analyse common cybersecurity threats and the strategies used to protect data integrity and privacy. They explore encryption, authentication, and the legal obligations of data custodians in Australia.
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