Web technologies - PowerPoint PPT Presentation

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  1. Web technologies Session 1

  2. Objectives for this unit • To develop participants’ knowledge, skills and understanding of web technologies • To consider progression in ‘Exchanging and sharing information’ through Key Stage 3 when designing and creating web pages and websites • To consider a range of approaches to teaching the use of web technologies in designing and creating web pages and websites

  3. Objectives for session 1 • To develop participants’ technical knowledge and understanding of how data are transmitted across the Internet • To understand how a web-browser works • To consider the links to Sample teaching unit 8.2

  4. Number of packets Number in sequence 1/15 One obje Data To AB From RD Origin Destination Packets, protocols and addresses Note: This is a simplified diagram to illustrate main concepts only.

  5. Bandwidth


  6. Designing web pages Web designers should remember: • file sizes of pages should be as small as possible, to enable them to be transmitted quickly • pages that are slow to load frustrate users who will then move on to another site • users may move on before images, sounds or video clips have downloaded.

  7. What does this mean for your teaching? • In pairs, reflect on the session so far and complete Handout 1.1.

  8. Objectives for session 1 • To develop participants’ technical knowledge and understanding of how data are transmitted across the Internet • To understand how a web-browser works • To consider the links to Sample teaching unit 8.2