This fully-resourced lesson describes the principles and limitations of optical, transmission electron and scanning electron microscopes. The engaging PowerPoint and accompanying resources have been designed to cover the specification details at the start of topic 2.1.3 of the AQA A-level Biology course and also explains the difference between magnification and resolution.
When designing all four of the lessons to cover the detail of 2.1.3, I was conscious that microscopes and the methods of studying cells is a topic that doesn’t always attract the full attention of the students. In line with this, I aimed to plan lessons that encouraged engagement so that the likelihood of knowledge retention and understanding was increased. An ongoing quiz competition runs across the 4 lessons and in this particular lesson, rounds such as YOU DO THE MATH and IT’S TIME FOR ACTION will introduce key terms and values in a fun and memorable way. Time is taken to look at the key details of each of the types of microscope and students will be able to describe how light or the transmission of electrons through or across a specimen will form an image. Students will come to recognise the difference between magnification and resolution and examples are provided and exam-style questions used to check on understanding. As well as current understanding checks, prior knowledge checks challenge the students to make links to other biological topics which include specialised cells and tissues, cell structures and biological molecules.
As detailed above, this lesson has been written to be the first in a series of 4 lessons and the others, which are uploaded are:
- Measuring the size of an object viewed under an optical microscope
- Use of the magnification formula
- Cell fractionation and ultracentrifugation
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Methods of studying cells (AQA A-level biology)
This bundle of 4 lessons have been intricately planned to cover the detailed content of topic 2.1.3 of the AQA A-level biology specification. This topic, titled "methods of studying cells", isn't every student's cup of tea, so the lessons have been deliberately filled with a range of engaging tasks, including a quiz competition that runs across the 4 lessons. These quizzes act to introduce key terms and numbers in a memorable way and also check on knowledge from the current lesson or previous topics. If you would like to observe the quality of lessons in this bundle, then download the optical and electron microscopes lesson as this has been uploaded for free.
£7.50
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Topic 2.1: Cell structure (AQA A-level Biology)
This bundle of 9 lesson PowerPoints and accompanying resources contain a wide variety of tasks which will engage and motivate the students whilst covering the details of topic 2.1 of the AQA A-level Biology specification. Cells and their structure are linked to all of the other 7 topics in this course so a clear understanding is critical to a student's success. The tasks which include exam-style questions (with displayed mark schemes), discussion points and quiz competitions will cover the following parts of topic 2.1: * The structure and function of the cell-surface membrane, nucleus, nucleolus, mitochondria, chloroplasts, Golgi apparatus, lysosomes, ribosomes, RER and SER, cell wall and cell vacuole * The specialised cells of complex, multicellular organisms * The structures of a typical prokaryotic cell * The differences between prokaryotic and eukaryotic cells * The structure of viruses * The principles and limitations of optical microscopes, transmission electron microscopes and scanning electron microscopes * Measuring the size of an object using an optical microscope * Using the magnification formula * The principles of cell fractionation and ultracentrifugation If you would like to sample the quality of these lessons, then download the eukaryotic animal cells, viruses and microscopes lessons as these have been uploaded for free
£14.00
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Really not for me - poor layout, odd structure. Very different style of teaching
Great way to compare microscopes. Used as part of our intro to A level.
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