Local Area Networks (LANs) in Action

Active learning works especially well for Local Area Networks because young students learn best by handling real objects and seeing how parts connect. When children physically sort cables, routers, and web pages, the abstract idea of ‘hardware versus service’ becomes concrete and memorable.

• Year 3
• Computing
• 3 activities
• 20 min–30 min

Learning Objectives

1. Identify the main components of a Local Area Network (LAN) within the school environment, such as routers, switches, and cables.
2. Explain the function of a router in directing data traffic between multiple devices on a network.
3. Compare the process of transmitting information via wired connections versus wireless connections.
4. Construct a simple diagram illustrating how classroom devices connect to the school's LAN and subsequently to the internet.

Simulation Game

⏱ 20 min·Whole Class

Simulation Game: The Web vs. The Highway

Create a floor map where 'roads' represent the internet cables. Students act as 'trucks' (the internet) carrying 'cargo' (web pages, emails, or videos) to different destinations to show that the road exists to carry different things.

Prepare & details

Explain the function of a router in connecting multiple devices.

Facilitation Tip: During the simulation, remind students to move slowly along the ‘tracks’ so the train (web) doesn’t derail and they can clearly see the hardware supporting it.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Inquiry Circle

⏱ 30 min·Small Groups

Inquiry Circle: URL Anatomy

Give groups a set of printed web addresses. They must 'dissect' them to find the 'www', the name of the site, and the domain (like .uk), discussing why each part is needed to find the right 'house' on the internet.

Prepare & details

Compare how wired and wireless connections transmit information.

Facilitation Tip: While investigating URL anatomy, circulate with pre-printed labels so students can physically attach ‘domain’ and ‘path’ to each part of the URL string.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Gallery Walk

⏱ 25 min·Small Groups

Gallery Walk: Services of the Internet

Place posters around the room representing different internet services (Web, Email, Gaming, Streaming). Students rotate to add stickers or notes about which ones they use, reinforcing that the web is just one part of the whole.

Prepare & details

Construct a simple diagram illustrating how devices in our classroom connect to the internet.

Facilitation Tip: During the gallery walk, have students record one surprising service they discovered on a sticky note and place it next to the corresponding photo or device.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Teaching This Topic

Teach this topic through layered analogies: first the tracks-and-train metaphor, then a hands-on cable sorting task, and finally a gallery walk that connects services to devices. Avoid introducing terms like ‘packet’ or ‘IP address’; instead, keep language simple and visual. Research shows that concrete comparisons plus peer talk build stronger mental models than abstract definitions alone.

What to Expect

By the end of the activities, every student should confidently point to a router or cable and explain, in their own words, whether it is part of the internet or the web. They should also label at least two components in a simple diagram and describe their basic function.

Watch Out for These Misconceptions

Common Misconception

During Simulation: The Web vs. The Highway, watch for students who treat the train and tracks as interchangeable.

What to Teach Instead

Pause the activity and ask each group to hold up either a ‘track’ card or a ‘train’ card before moving forward, forcing them to verbalize the correct analogy.

Common Misconception

During Collaborative Investigation: URL Anatomy, watch for students who think the entire URL is the web address.

What to Teach Instead

Have students cut the URL into three labeled strips—protocol, domain, path—and physically rearrange them to see that only the domain and path name the web page.

Assessment Ideas

Exit Ticket

After Simulation: The Web vs. The Highway, collect each student’s labeled diagram of a classroom computer connected to a router. Check that they have circled the router and written one sentence describing its role as the ‘traffic director’ between devices.

Quick Check

During Collaborative Investigation: URL Anatomy, approach pairs and ask them to point to the ‘domain’ label on their printed URL. Listen for explanations such as ‘it tells us where the web page lives on the internet’.

Discussion Prompt

After Gallery Walk: Services of the Internet, pose the question to the whole class and listen for mentions of routers, switches, or cables when they suggest reasons the internet might stop working.

Extensions & Scaffolding

• Challenge: Ask students who finish early to create a mini-poster showing how our classroom LAN connects to the wider internet, including at least one undersea cable.
• Scaffolding: Provide picture cards of network devices and have students match them to their correct labels before moving on to the URL activity.
• Deeper exploration: Invite a network engineer (in person or via short video) to explain how data travels from our school router to a classmate’s home router.

Key Vocabulary

Local Area Network (LAN)	A computer network that connects devices within a limited area, such as a home, school, or office building.
Router	A device that forwards data packets between computer networks. It acts like a traffic director, deciding the best path for information to travel.
Switch	A network hardware component that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.
Network Cable	A physical wire, like an Ethernet cable, used to connect devices in a wired network, transmitting data signals.
Wireless Connection	A method of connecting devices to a network using radio waves, such as Wi-Fi, without physical cables.