This lesson describes the reasons for the need to maintain biodiversity, which include those which are ecological, economic and aesthetic. The PowerPoint and accompanying resources have been designed to cover point 18.3 (b) of the CIE A-level Biology specification.
Many hours of research have gone into the planning of the lesson so that interesting examples are included to increase the relevance of the multitude of reasons to maintain biodiversity. These include the gray wolves and beavers of Yellowstone National Park and the Za boabab in the Madagascar rainforests as examples of keystone species. Students will learn that these species have a disproportionate effect on their environment relative to their abundance and exam-style questions and guided discussion periods are used to challenge them to explain their effect on other species in the habitat. The CIE exams have a heavy mathematical content and this is reflected in this lesson as students are challenged to complete a range of calculations to manipulate data to support their biological-based answers. All of the exam questions that are included throughout the lesson have mark schemes embedded into the PowerPoint to allow the students to assess their progress. Moving fowards, the economic ans aesthetic reasons to maintain biodiversity are considered, and there is a focus on the soil depletion that occurs when a continuous monoculture is used. The 1 Billion tree scheme that began in New Zealand in 2018 is introduced and the reasons that some groups of people are objecting to what they consider to be a pine monoculture are discussed. Students will recognise that the clear felling of the trees dramatically changes the landscape and that the increased runoff that results can have catastrophic affects for both aquatic life and for humans with floods.
A number of quiz competitions are included in the lesson to introduce key terms in a fun and memorable way and some of the worksheets have been differentiated to allow students of differing abilities to access the work
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Topic 18: Biodiversity, classification and conservation (CIE A-level Biology)
Hours of research and planning has gone into each and every one of the 9 lessons that are included in this lesson bundle that covers topic 18 of the CIE A-level Biology course . Conscious that some students do not fully engage in the topics of biodiversity, classsification and conservation, the lessons have been designed to contain a wide range of tasks which will motivate the students whilst the content of the following specification points are covered: 18.1: Biodiversity * Define the terms species, ecosystem and niche * Explain that biodiversity can be considered at three different levels * Explain the importance of random sampling in determining the biodiversity of an area * Use suitable methods to assess the distribution and abundance of organisms in a local area * Use Spearman's rank correlation to analyse the relationship between the distribution and abundance of species and abiotic or biotic factors * Use Simpson's Index of diversity 18.2: Classification * Describe the classification of species into the 8 taxonomic divisions * Outline the characteristic features of the three domains * Outline the characteristic features of the kingdoms * Explain why viruses are not included in the three domain classification and outline how they are classified 18.3: Conservation * The reasons for the need to maintain biodiversity * Discuss methods of protecting endangered species * The role of non-governmental organisations like the WWF and CITES in local and global conservation If you would like to sample the quality of the lessons in this bundle, then download the Spearman's rank correlation, features of the kingdoms and WWF, CITES and conservation lesson as these have been uploaded for free
£12.00
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Topics 17 & 18: Selection, evolution, biodiversity & classification (CIE A-level Biology)
The topics of selection, evolution, biodiversity, classification and conservation are key concepts in Biology, that are regularly assessed in the exams, but are not always that well understood by the students. With this at the forefront of the lesson design, these 16 lesson PowerPoints and their accompanying resources have been intricately planned to cover the detailed content of topics 17 & 18 of the CIE A-level Biology specification through the use of a wide range of tasks to engage and motivate the students. There are plenty of opportunities for the students to assess their current understanding through the completion of exam-style questions and also to check on their prior knowledge by making links to earlier topics. The following specification points are covered by these lessons: Topic 17.1: Variation * The differences between continuous and discontinuous variation * Using the t-test to compare the variation of two different populations * The importance of genetic variation in selection Topic 17.2: Natural and artificial selection * Natural selection * Explain how environmental factors can act as stabilising, disruptive and directional forces of natural selection * Explain how the founder effect and genetic drift may affect allele frequencies in populations * Use the Hardy-Weinberg principle Topic 17.3: Evolution * The molecular evidence that reveals similarities between closely related organisms * Explain how speciation may occur Topic 18.1: Biodiversity * Define the terms species, ecosystem and niche * Explain that biodiversity is considered at three levels * Explain the importance of random sampling in determining the biodiversity of an area * Use suitable methods to assess the distribution and abundance of organisms in a local area * Use the Spearman's rank correlation to analyse relationships between data * Use Simpson's index of diversity Topic 18.2: Classification * The classification of species into taxonomic hierarchy * The characteristic features of the three domains * The characteristic features of the kingdoms * Explain why viruses are not included in the three domain classification Topic 18.3: Conservation * The reasons for the need to maintain biodiversity * Methods of protecting endangered species * The roles of organisations like the WWF and CITES in local and global conservation If you would like to sample the quality of the lessons that are included in this bundle then download the following as these have been shared for free: * Continuous and discontinuous variation * Molecular evidence & evolution * Spearman's rank correlation * WWF, CITES and conservation It is estimated that it will take up to 2 months of A-level Biology teaching time to cover the detail included in these lessons
£22.00
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Topic 18.3: Conservation (CIE A-level Biology)
Each of the 3 lessons in this bundle have been planned extensively to ensure that they contain lots of engaging biological examples that will catch the interest of the students whilst covering the difficult content of topic 18.3 (Conservation) of the CIE A-level Biology specification. The lesson PowerPoints and accompanying worksheets are filled with a wide range of tasks that include guided discussion periods, exam-style questions (with mark schemes) and quick quiz competitions and these combine to cover the following specification points: * The reasons for the need to maintain biodiversity * Methods of protecting endangered species, including the roles of zoos, botanic gardens, national parks, marine conservation zones and seed banks * The roles of non-governmental organisations such as WWF and CITES in local and global conservation If you would like to view the detailed content of this bundle, then download the "WWF, CITES and conservation" lesson as this has been uploaded for free
£5.00
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