Coding · 2nd Year · The Evolution of Computing in Society · 1.º Período

The Internet and Global Connectivity

Explore the history of the internet and how global networks have transformed communication, culture, and society.

TL;DR:This topic traces the journey from ARPANET to the modern World Wide Web, focusing on the infrastructure and protocols that allow global connectivity. Students learn about the decentralised nature of the internet and how it differs from the World Wide Web. This distinction is a core part of digital literacy within the NCCA framework, ensuring students understand the underlying systems they use every day.

• NCCA Curriculum Specifications
• NCCA Junior Cycle Short Course in Coding, Strand 1: Computer science introduction
• NCCA Junior Cycle Short Course in Coding, Strand 1: Computer science introduction - Computing and society

About This Topic

This topic traces the journey from ARPANET to the modern World Wide Web, focusing on the infrastructure and protocols that allow global connectivity. Students learn about the decentralised nature of the internet and how it differs from the World Wide Web. This distinction is a core part of digital literacy within the NCCA framework, ensuring students understand the underlying systems they use every day.

Beyond the technical, the unit explores how the internet has flattened global communication, impacting everything from Irish culture to international trade. It highlights the work of Tim Berners-Lee and the ethos of an open web. This topic comes alive when students can physically model the patterns of packet switching and network routing.

Key Questions

1. How did the ARPANET evolve into the modern internet?
2. In what ways has the internet changed global communication and media?
3. What are the historical milestones of the World Wide Web?

Watch Out for These Misconceptions

Common Misconception

The Internet and the World Wide Web are the same thing.

What to Teach Instead

This is a common error. Use a 'road and car' analogy: the Internet is the infrastructure (roads), while the Web is just one way to use it (the cars). Peer explanation helps solidify this distinction.

Common Misconception

The internet is a 'cloud' that exists in the air.

What to Teach Instead

Students often forget the physical reality of cables and servers. A collaborative investigation into undersea fiber optic cables connecting Ireland to the US can ground this concept.

Active Learning Ideas

Simulation Game

The Packet Switching Race

Students act as 'routers' and 'packets' to deliver a message across the room. They must find the most efficient path and handle 'network congestion' or 'broken links' introduced by the teacher.

30 min·Whole Class

Gallery Walk

Milestones of the Web

Students create posters for key events like the first email, the launch of Google, or the rise of social media. They rotate to evaluate how each milestone changed human behavior.

40 min·Small Groups

Think-Pair-Share

The Digital Divide

Students consider a map of global internet access and discuss in pairs why some regions are less connected. They share ideas on how this affects education and economic growth in those areas.

20 min·Pairs

Frequently Asked Questions

What is the difference between the Internet and the World Wide Web?

The Internet is the global network of hardware and protocols. The World Wide Web is a service that runs on the internet, using HTTP to link documents via URLs. It is like the difference between the telephone lines and the actual conversation.

How did the internet change Irish society?

It has been transformative for Ireland's economy, allowing us to become a global tech hub. Socially, it has allowed the Irish diaspora to stay connected and has played a massive role in the revival of interest in the Irish language through digital media.

What are the historical milestones of the World Wide Web?

Key moments include Tim Berners-Lee's proposal in 1989, the release of the Mosaic browser in 1993, and the shift to Web 2.0 in the mid-2000s, which introduced user-generated content.

How can active learning help students understand the internet?

Active learning strategies like network simulations allow students to visualize how data actually travels. Instead of just hearing about 'protocols,' they become the protocol, making decisions about where to send data. This movement and decision-making help them internalize the logic of decentralized networks much better than a diagram.