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Complete units of work, paper based or for lessons with computer access. Individual and stand alone lesson plans that are ideal for cover lessons. All lesson plans and resources are suitable to be taught by a cover supervisor. All lessons identify RWCM links and opportunities to identify careers guidance support. Some include expert teacher commentary but all provide a framework for any teacher to follow. Lesson plans are built using an accelerated learning cycle.

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Complete units of work, paper based or for lessons with computer access. Individual and stand alone lesson plans that are ideal for cover lessons. All lesson plans and resources are suitable to be taught by a cover supervisor. All lessons identify RWCM links and opportunities to identify careers guidance support. Some include expert teacher commentary but all provide a framework for any teacher to follow. Lesson plans are built using an accelerated learning cycle.

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04 Pig Pen Cipher
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04 Pig Pen Cipher

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This is the fourth lesson in a sequence of lessons about encryption and cipher techniques. The pig pen cipher is a technique mainly developed by freemasons to code messages to each other. Students will investigate how the technique works and reflect on its effectiveness.
11 Denary to Binary
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11 Denary to Binary

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This lesson is the third in a sequence of lessons that introduces students to look at how data is stored and manipulated on a computer system. This lesson reverses the process of learning from the previous lesson and looks at two methods for converting denary (base 10) numbers to binary (base 2) numbers. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
19 Character Sets
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19 Character Sets

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This lesson plan forms part of a unit of work to develop student’s understanding of how data is represented on a computer. This lesson concerns the development of character sets, shares information about ASCII and Unicode and the associated learning mat encourages students to consider the fact that emojis can also form part of a character set. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
18 Convert from hex
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18 Convert from hex

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This lesson builds on lesson 17, and asks students to convert from hexadecimal to both binary and denary. The learning mat includes exercises in both and includes some questions in context. The lesson plan is fully editable in PowerPoint and is broken into a 6-part lesson with recall and self-assessment activities. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
23 Data Compression
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23 Data Compression

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This lesson is close to the end of the unit of work on data presentation but can be run as a standalone lesson. In this lesson students are introduced to different types of compression and investigate the reasons why files need to be compressed for efficient computer use. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
20 Bitmap Images
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20 Bitmap Images

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This lesson is a stand alone lesson that introduces students to the concept of hexadecimal and asks them to develop skills in converting between binary and denary and hexadecimal. Students will require knowledge of and skills with converting between binary and denary. It also starts to introduce the idea of colour and images being represented by computer code. It touches on high and low level programming languages. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
22 Data Storage Measures
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22 Data Storage Measures

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This lesson is the penultimate lesson of a unit about data representation, file sizes and compression. In this lesson, students are introduced to ways of measuring file sizes and asked to familiarise themselves with the terms of measurement as well as convert between them. Ultimately, they should be able to write an expression to show the calculation needed to work out the size of a sound or image file. Learning Objective: To understand that data storage is measured in binary multiples. And to be able to construct expressions that calculate file sizes and data capacity requirements. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
24 Encryption
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24 Encryption

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This lesson also covers material needed for learning about networks and cyber security, but also fits nicely in a unit of work about data representation. In this lesson, students are given the opportunity to reflect on what encryption is and why it is needed as well as practice skills with a Caesar Cipher. There are a range of activities that allow students to read out loud, discuss with other pupils and communicate learning in written activities. There are practical puzzles to investigate encryption algorithms, and a careers guidance discussion about being an ethical hacker. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
25 End of Unit Assessment - Data Representation
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25 End of Unit Assessment - Data Representation

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This lesson draws the whole unit of work on Data Representation to a close. Start with providing students the opportunity to complete the assessment task under test conditions then when work is marked, use the lesson plan (LP) is an opportunity for Dedicated Improvement and Reflection Time (DIRT). Students will understand the correct answers to the questions on the assessment, and then complete 3 targets set by the teacher in their feedback. There is a marksheet (XLSX) to record student scores and to analyse class performance. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
14 Two's Complement
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14 Two's Complement

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This lesson is the sixth in a series of lessons on data representation and builds on lesson 5 to look at how computers process negative numbers. There are significant links with maths in this lesson and students need to be clear that adding a negative number is the same as subtracting the positive number. The teacher notes demonstrate two different ways to find the two’s complement of a binary number. The worksheet (learning mat) includes exercises to test students understanding of both processes. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
16 Arithmetic Binary Shifts
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16 Arithmetic Binary Shifts

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This lesson is the 8th in a series of lessons that helps students understand the fundamentals of binary numbers and binary arithmetic. This lesson is appropriate for the Edexcel GCSE Computer Science course and for students studying for higher grades. It builds on the previous lesson where students compared binary multiplication with denary multiplication. This lesson demonstrates one method for working with signed integers represented in binary format. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
13 Sign and Magnitude
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13 Sign and Magnitude

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This is lesson 5 in the sequences of lessons on data representation – part of the computer science GCSE course, although it can be adapted for a key stage 3 computing class that is being prepared for GCSE. This lesson introduces one way of showing negative numbers in binary format, and leads students to understand why this format is not good enough for computer programming. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
10 Binary to Denary
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10 Binary to Denary

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Second in a sequence of lessons that ask students to consider how data is stored and manipulated on a computer under the topic of data representation. Fully resourced lesson and detailed lesson plan including numeracy and literacy links. Range of activities. No computer needed. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
21 Digital Sound Files
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21 Digital Sound Files

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This lesson forms part of a unit of work that enables students to understand how text, images and sound are stored and edited on a computer. This lesson focuses on sound recordings and asks students to understand how a digital sound recording can never be as high quality as original sound, and tests them on how the sound recording can be improved in quality. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
17 Hexadecimal
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17 Hexadecimal

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This lesson is a stand alone lesson that introduces students to the concept of hexadecimal and asks them to develop skills in converting between binary and denary and hexadecimal. Students will require knowledge of and skills with converting between binary and denary. It also starts to introduce the idea of colour and images being represented by computer code. It touches on high and low level programming languages. Learning Mat (LM) Worksheet is supplied as PPT, PPTX and PDF formats. Lesson Plan (LP) is supplied as PPT, PPTX and PPT Slideshow. Note that PPT files may lose some functionality.
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Data Representation
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Data Representation

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17 Resources
A collection of lesson plans that cover the GCSE Specification for Pearson Edexcel Computer Science but that have been differentiated for key stage 3 introduction to data representation. All are complete lessons with learning mats (LM) worksheets, and lesson plans (LP). LM are provided in PPTX, PPT and PDF format. LP are provided in PPTX, PPT and PPS format. Note that PPT files may lose some functionality. The lessons take the students on a journey with plenty of recap opportunities to consolidate learning, and a range of learning and teaching activities. Lessons generally do not need computer access, so this unit of work is suitable for cover lessons. There are teacher’s notes which also help to make the lesson appropriate for non-specialist or second subject teachers.
43 Internet Structure
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43 Internet Structure

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This lesson is the 4th in a series of lessons designed to improve students’ understanding of how networks are organised. In this lesson students develop their understanding of key vocabulary such as IP addresses and the role of the router in transferring data between computers. It involves recall of key information from lesson 2 in the unit. Students are asked to describe the handshake process, discuss the format of data packets, and consider possible errors in transmission of data. This lesson is provided in PPTX, PPTS, PPT formats. The learning mat is provided in PPTX, PPT and PDF formats. Some animation and image features may be lost in PPT formats. A homework task is also included in this lesson.
45 Wired and Wireless Networks
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45 Wired and Wireless Networks

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This lesson is the 5th in a series of lessons designed to improve students’ understanding of how networks are organised. In this lesson students consider a range of different features of wired and wireless networks and how they impact on the performance of the network. Students should be taught to be critical about real life situations and apply their learning in this lesson to explain which type of network is best for which type of situation. This lesson is provided in PPTX, PPTS, PPT formats. The learning mat is provided in PPTX, PPT and PDF formats. Some animation and image features may be lost in PPT formats.
40 Network Basics
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40 Network Basics

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A complete lesson and the first lesson of a unit designed to encourage students to understand how and why networks are used. This lesson is focused on the benefits and drawbacks of using a network but also covers the differences between client-server and peer-to-peer networks. The resources include a 'takeaway menu ’ of homework tasks, a selection of possible bell work activities as well as a fully detailed lesson plan and learning mat for students to demonstrate their understanding of the topic. LP in pptx, ppt and pps formats (though some image and animation functionality is lost in earlier versions of PowerPoint. LM, bell work and homework s PPTX, PPT and PDF formats
41 Types of Networks
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41 Types of Networks

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This is the second in a sequence of lessons that introduce students to the principles of network organisation and the reasons why networks are used. This lesson looks at the differences between LAN and WAN, introduces the idea of a PAN, and also considers the role of the router in creating a LAN. The lesson plan is provided in PPTX, PPTS and PPT format, although some image and animation settings lose functionality in the older version of PowerPoint. The learning mat (worksheet) is also available as a PDF version. This will print on A3 paper.