Learning Intention To learn the difference between Hubs, Switches and Routers. To learn network topologies	Success Criteria I can explain the difference between key network devices I can identify common network topologies
Warm up Here are a few more networks we haven’t spoken about yet	Glossary Router Hub Switch Client-Server
Review.  What type of networks do we use on a daily basis?	Introduction Hubs, Switches and Routers What is a hub? What is a switch? Difference between hub and switch? What does a router do?

Explore

Client Server
Draw a picture or try and explain what happens when you first try and log into the network. What picture below makes more sense of how our network operates, hint we have over 2500 users on the network. Review: https://www.bbc.com/bitesize/guides/zh4whyc/revision/7

Topography – Star, Bus and Ring
Count how many desktop are in the room. Now go the network cabinet and count how many Ethernet Cables (blue cables) are going into the Switch. Look at the pictures in the link below figure out what arrangement we have in the lab.

https://www.bbc.com/bitesize/guides/zh4whyc/revision/3

Servers. 
Read the first paragraph on this page https://www.bbc.com/bitesize/guides/zh4whyc/revision/8. Rewrite the first paragraph in your own words. What could a server do at our school?

Data-packets. 
Review and explain what a packet is. Also draw a picture.
https://www.bbc.com/bitesize/guides/zh4whyc/revision/1

Elaborate

Questions for computer technician.
On Wednesday the computer technician will come into the lab to answer questions about the school network. I would like everyone to put forward at one question. For example: How many different servers does the school have? What do routers do in the school? How fast is the internet? What happens when I print a document?

Extension

Do as many of the following tasks as possible.

1. Catch up on unfinished work
2. Start creating a network drawing of the computer lab. Compare your new drawing to the one you completed last week. What has changed?
3. Explain how a Raspberry Pi could connect to the school network (Wired and Wireless).

Review

Complete the following quiz