Two spreadsheets providing both one-tailed and two-tailed options – can be used with your own data. Integral ‘help’ and example data are provided as well as critical values. Complements our presentation 3.7.4 Statistics - River Fieldwork - Spearman Rank Test (sold separately).

One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. This engaging presentation employs Student’s t-test to determine if there is a significant difference in the shell heights of dogwhelks from sheltered and exposed shores. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of WJEC, Edexcel, CCEA GCSE and both iGCSE Biology courses. Visually stunning and highly interactive, these presentations are already used in many UK and international schools. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 26 slides – featuring superb, informative graphics, interaction and animation. • interaction and animation are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of six sets of presentations (5 presentations/set) which develop good exam technique in any Biology course for students aged 16 – 19. Set 5 covers the following five topics and analyses 31 exam questions… • Kidney • Meiosis • Metabolic Pathways • Biological Molecules • Mutations Using the staged display of information, students compile, mark and critically evaluate their own answers, those of their peers or an examiner’s comments. The presentations gradually introduce students to the requirements of different question styles, the common sources of error and successful examination technique - all within the context of examination questions. This resource supports our core theory presentations and provides a powerful tool for revision, testing and analysing question styles. Suitable for a single computer, network, interactive whiteboard or digital projector. Fully editable in PowerPoint (.pptx file supplied). Will work on any operating system as long as you have PowerPoint installed. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a good selection of slide images (.png or .jpg files) to allow you to appreciate the full content of the presentations in each set - you do not need to retain these images after download - just download and keep the .pptx files.

One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. This presentation employs Pearson’s PMC Coefficent in a study on the correlation between shell height and aperture length of Dogwhelks on both exposed and sheltered rocky shores. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 35 slides – packed with superb, informative graphics, interactions and animations. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. This presentation focuses on Disruptive, Stabilising and Directional forms of selection. N.B. Our other presentation ‘Natural Selection - 2a’ is only for AS AQA and does not contain Disruptive Selection. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

A top selling presentation - one of 20 interactive PowerPoint presentations which together cover the core content of any Food Technology/Nutrition course in the 14-16+ age range. Well illustrated and easy to edit, these presentations are already used in many UK and international schools. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 25 slides – featuring superb, informative graphics and interaction (html5). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

A top selling presentation - one of 20 interactive PowerPoint presentations which together cover the core content of any Food Technology/Nutrition course in the 14-16+ age range. Well illustrated and easy to edit, these presentations are already used in many UK and international schools. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 47 slides – featuring superb, informative graphics, interactions and animations. • interactions and animations are html5 and mp4 respectively. • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of 59 PowerPoint presentations (Sets 1 - 6) which together cover the Year 2 A Level topics for OCR (A). Contains animations of both batch and continuous fermenters. · Utilizes the benefits of the staged display of information. · Works on all operating systems where MS PowerPoint has been installed. · Suitable for a single computer, network, interactive whiteboard or digital projector. · 38 Slides - editable in PowerPoint (.pptx file supplied). Featuring several animations (mp4). · Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

This is a significant resource from our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 40 slides – packed with superb, informative graphics, interactions and animations. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 40 slides – featuring superb, informative graphics and an interactive labelling exercise. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 40 slides – packed with superb graphics, interactions (including a quiz) and animations. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 19 slides – featuring superb, informative graphics and an interaction (html5). • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 28 slides – featuring superb, informative graphics and an interactive cloze exercise. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 37 slides – featuring superb, informative graphics, interaction and animation. • interaction and animation are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 19 slides – featuring superb, informative graphics which clearly explain a higher level topic. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations which together cover the core content of any GCSE or iGCSE Biology course. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 37 slides – featuring superb, informative graphics and three html5 interactions. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

A major resource from our large collection of interactive PowerPoint presentations suitable for Edexcel GCSE Biology (9-1). • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 38 slides – packed with superb, informative graphics, interactions and animations. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of our large collection of interactive PowerPoint presentations suitable for Edexcel GCSE Biology (9-1). • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 33 slides – featuring superb, informative graphics and animation. • interactions and animations are html5 and mp4 respectively. • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store only allows a PowerPoint preview to consist of a few slides. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.