PROGRESSION IN NETWORKING Sue Sentance

Learning objectives You should understand the content that needs to be delivered in the area of communications and networking at KS3 and KS4 You should be able to identify key terms and concepts in these topics You should start to understand progression in this topic You should gain some awareness of resources that can be used to teach this in school

Agenda (plus this afternoon) Session 1 (2:00 – 3:00) What do students need to know about networking at each KS? Activity: Progression in networking Session 2 (3:00 – 4:00) 2 x unplugged activities for networking Preparation for next week’s sessions

National Curriculum KS 1 use technology safely and respectfully, keeping personal information private; identify where to go for help and support when they have concerns about content or contact on the internet or other online technologies. KS2 understand computer networks including the internet; how they can provide multiple services, such as the world wide web; and the opportunities they offer for communication and collaboration KS3 understand the hardware and software components that make up computer systems, and how they communicate with one another and with other systems

GCSE Computing OCR (a) explain the advantages of networking stand- alone computers into a local area network (b) describe the hardware needed to connect stand- alone computers into a local area network, including hub/switches, wireless access points (c) explain the different roles of computers in a client-server and a peer-to-peer network (d) describe, using diagrams or otherwise, the ring, bus and star network topologies (e) describe the differences between a local area network and a wide area network such as the Internet (f) explain the terms IP addressing, MAC addressing, packet and protocols (g) explain the need for security measures in networks, such as user access levels, suitable passwords and encryption techniques (h) describe and justify network policies such as acceptable use, disaster recovery, failover, back up, archiving. AQA a)understand what a computer network is b)be able to discuss the advantages and disadvantages of using a computer network c)be able to describe and explain the bus, ring and star networking topologies d)be able to discuss the advantages and disadvantages of each of these topologies e)understand the client-server model f)be able to explain, in simple terms, the handshake process used in most modern networking protocols g)be able to explain how coding for a client- server model is different from coding for a stand-alone application

EdExcel GCSE

EdExcel GCSE (contd)

Progression pathways

Task: Progression in networking In pairs, choose on of the following topics - The internet - Networks You are to consider this topic at KS3 and KS4 Use the template on KEATS to put together: - Key terms students must be able to identify - A sequence of topics (make sure you take into account any dependencies) - How to assess understanding - Possible difficulties / misconceptions

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Network unplugged activity 1 You will need your torches! This activity is from: Dorling (2014). Communications and Networks Unplugged. CAS Resource

In pairs … Simplified ASCII coding for letters Code a short word or phrase Use torches to send the message to the other person Find out if the message was successfully received

Reflection & Extension What did you learn? How can you extend the task? In two pair groups send message from A to B or C through a router using torches A B Router C

Reflect on the learning points

Unplugged activity 2

Revisit objectives You should understand the content that needs to be delivered in the area of communications and networking at KS3 and KS4 You should be able to identify key terms and concepts in these topics You should start to understand progression in this topic You should gain some awareness of resources that can be used to teach this in school

Spare Task The exercise we have been doing is adapted from Communication and Networks Unplugged, written by Mark Dorling (who also wrote the Progression Pathways) Download this resource from KEATS These lesson plans are mostly around KS3 (or upper KS2) Pick one of the areas below, consider how this can be taught at GCSE level and how you could build on the KS3 material in the Networks Unplugged resource Develop a resource or task for a starter, main, plenary or homework that you could use with KS4 students to teach your chosen topic You have an hour to prepare this ready for presentation to the group at 2pm Protocols Topologies Encryption World Wide Web IP Addresses Client/Server Data transmission