This lesson describes how to use the magnification formula to calculate the actual sizes of specimens in a range of units. The PowerPoint and accompanying resources have been designed to cover point 1.1 (e) of the CIE A-level Biology specification but can also be used as a revision tool on the content of the previous two lessons as prior knowledge checks are included along with current understanding checks.
The students are likely to have met the magnification formula at iGCSE so this lesson has been written to build on that knowledge and to support them with more difficult questions when they have to calculate actual size without directly being given the magnification. A step by step guide is used to walk the students through the methodology and useful tips are provided. The final quiz round of the competition that has run over the course of these 3 lessons will challenge them to convert between units so they are confident when challenged to present actual size in millimetres, micrometres or nanometres.
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Maths in A-level Biology (CIE A-level Biology)
Without doubt, the CIE A-level Biology specification contains a lot of maths calculations and every year, there are a large number of exam questions that require the application of a range of mathematical skills. Therefore, a clear understanding of how and when to apply these skills is closely related to success on this course and the following calculations are covered by the 7 lessons that are included in this bundle: * Using the eyepiece graticule and stage micrometer to measure cells and be familiar with units * Calculating actual sizes of specimens from drawings, photomicrographs and electron micrographs * Using the chi-squared test to determine significance between the observed and expected results of a genetic cross * Use the t-test to compare the variation of two populations * Using the Hardy Weinberg principle to calculate allele, genotype and phenotype frequencies in populations * Use Spearman's rank correlation to analyse relationships between the distribution and abundance of species and abiotic or biotic factors * Using Simpson’s index of diversity to calculate the biodiversity of a habitat All of the lessons contain step by step guides that walk the students through the application of the formulae and there are lots of worked examples and exam-style questions for the students to use to assess understanding
£9.00
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Topics 1 & 2: Cell structure & Biological molecules (CIE A-level Biology)
It's no coincidence that cell structure and biological molecules find themselves as topics 1 and 2 of the CIE A-level Biology course, because a clear understanding of their content is absolutely critical to promote success with the 17 topics that follow. Hours and hours of intricate planning has gone into the 18 lessons included in this bundle to ensure that the detailed content is relevant and can be understood and that links are made to related sections of topics 3 - 19. The lesson PowerPoints and accompanying resources contain a wide range of activities that include: * differentiated exam-style questions with clear mark schemes * directed discussion points * quiz competitions to introduce key terms and values * current understanding and prior knowledge checks Due to the detail included in these lessons, it is estimated that it will take in excess of 2 months of allocated teaching time to cover the content of the resources A number of the resources have been shared for free so these can be downloaded in order to sample the quality of the lessons
£20.00
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Topic 1: Cell structure (CIE A-level Biology)
As Biology is the study of living organisms which are built out of cells, a clear understanding of the topic of cell structure is critical for a student's success in A-level Biology. Intricate planning has gone into all 7 of the lessons included in this bundle and the variety of tasks will engage and motivate the students whilst the details of the following specification points in topic 1 of the CIE A-level Biology course are covered: **Topic 1.1: The microscope in cell studies** * Use an eyepiece graticule and stage micrometer to measure cells * Use of the millimetre, micrometre and nanometre * Distinguish between resolution and magnification * The use of light and electron microscopes * Calculate the actual sizes of specimens **Topic 1.2: Cells as the basic units of living organisms** * Recognise eukaryotic cell structures and outline their functions * State that ATP is produced in the mitochondria and the chloroplast and the role of this molecule in cells * The structure of a typical prokaryotic cell * The differences between eukaryotic and prokaryotic cells * The key features of viruses If you would like to sample the quality of these lessons, download the magnification and resolution lesson, the eukaryotic cell structures lesson and the viruses lesson as these have been shared for free
£7.00
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