Computing · Year 6

Active learning ideas

URLs and IP Addresses

Active learning works well for URLs and IP addresses because students need to see the translation process in action. When learners physically act out lookups or dissect real examples, abstract concepts become concrete. This builds accurate mental models faster than passive explanation alone.

• National Curriculum Attainment Targets
• KS2: Computing - Computer Systems and Networks

• 20–35 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Concept Mapping
• 30 min · Small Groups

Role-Play: DNS Lookup Chain

Divide class into roles: users with URLs, browsers, DNS servers with IP mappings, and website hosts. Users request sites; chain acts out translation steps aloud. Groups rotate roles twice, noting bottlenecks without DNS. Debrief on real-world parallels.

Differentiate between a URL and an IP address and their functions.

Facilitation Tip

During the DNS Lookup Chain role-play, assign each student a clear role in the lookup sequence to ensure every step is visible to the class.

What to look for

Present students with a list containing both URLs and IP addresses. Ask them to label each one and write one sentence explaining its primary purpose. For example, 'This is a URL because it's a human-readable address for a website.'

• Understand
• Analyze
• Create
• Self-Awareness
• Self-Management

Activity 02

• Concept Mapping
• 25 min · Pairs

URL Dissection Stations

Set up stations with printed URLs from familiar sites. Students identify protocol, domain, path, and parameters in pairs. Record findings on worksheets, then share one insight per pair with class. Extend by visiting safe sites to verify.

Explain how the Domain Name System (DNS) helps us access websites easily.

Facilitation Tip

At URL Dissection Stations, circulate with a checklist of components to confirm all groups correctly identify protocol, domain, and top-level domain.

What to look for

Pose the question: 'Imagine the internet without DNS. What would be the biggest challenge for someone trying to visit their favorite gaming website?' Encourage students to discuss how they would have to find the website and what problems might arise.

• Understand
• Analyze
• Create
• Self-Awareness
• Self-Management

Activity 03

• Concept Mapping
• 20 min · Pairs

IP Memory Match-Up

Provide cards with URLs on one side, IPs on the other for sites like Google or BBC. Pairs match without looking up, then test in browser if possible. Discuss failure rates and DNS necessity as a class.

Predict what would happen if there were no system to translate URLs to IP addresses.

Facilitation Tip

For IP Memory Match-Up, use a timer to limit thinking time and force quick recognition patterns among students who rely too heavily on guessing.

What to look for

Provide students with a simple URL, e.g., 'https://www.example.com'. Ask them to break down the URL into its main components (protocol, domain name, top-level domain) and briefly explain what each part does. Then, ask them to write what the equivalent IP address might look like (e.g., a series of numbers).

• Understand
• Analyze
• Create
• Self-Awareness
• Self-Management

Activity 04

• Concept Mapping
• 35 min · Small Groups

Prediction Debate: No DNS Scenario

Small groups list top five sites they visit, assign fake IPs, and role-play daily use. Predict frustrations like errors or abandonment. Vote on impacts and connect to DNS benefits in plenary.

Differentiate between a URL and an IP address and their functions.

Facilitation Tip

In the Prediction Debate, provide a one-sentence starter for each side to keep arguments focused and prevent off-topic discussions.

What to look for

Present students with a list containing both URLs and IP addresses. Ask them to label each one and write one sentence explaining its primary purpose. For example, 'This is a URL because it's a human-readable address for a website.'

• Understand
• Analyze
• Create
• Self-Awareness
• Self-Management

A few notes on teaching this unit

Teach URLs and IP addresses by making the invisible visible. Use analogies students already know, like postal addresses versus house numbers, but avoid over-relying on them as they can reinforce the misconception that these systems are identical. Research suggests students grasp system dependencies better when they experience delay and failure during simulations, so allow DNS lookups to occasionally 'fail' to highlight the role of caching and retry mechanisms.

Students will confidently label URLs and IP addresses, explain their roles, and trace how DNS connects them. They will also predict real-world consequences when translation fails, showing they understand system dependencies. Group discussions and role-plays reveal gaps in understanding that need correcting.

---

Watch Out for These Misconceptions

• During the URL Dissection Stations activity, watch for students who describe URLs and IP addresses as identical systems because they see both as 'internet addresses.'

  After students dissect a URL like https://www.bbc.co.uk and compare it to an IP like 104.20.5.67, have them list structural differences in a t-chart. Ask them to explain why humans need readable paths, while machines rely on precise numbers, reinforcing the roles of each format.

• During the IP Memory Match-Up activity, watch for students who assume browsers remember all IP addresses permanently.

  After students match IPs to URLs, ask them to recall the matches after a 5-minute break. If they forget, use this as evidence to discuss why DNS lookups happen repeatedly and why caching only stores recent translations temporarily.

• During the Prediction Debate activity, watch for students who believe IP addresses never change once assigned.

  Before the debate, provide a short case study of an IP change due to a server move or network upgrade. During the debate, ask students to reference this example when arguing that DNS flexibility prevents broken links when IPs shift.

---

Methods used in this brief

• Concept Mapping