A Science teacher by trade, I've also been known to be found teaching Maths and PE! However, strange as it may seem, my real love is designing resources that can be used by other teachers to maximise the experience of the students. I am constantly thinking of new ways to engage a student with a topic and try to implement that in the design of the lessons.
A Science teacher by trade, I've also been known to be found teaching Maths and PE! However, strange as it may seem, my real love is designing resources that can be used by other teachers to maximise the experience of the students. I am constantly thinking of new ways to engage a student with a topic and try to implement that in the design of the lessons.
This lesson introduces and explains the meaning of 11 key terms associated with the genetic inheritance topic. The PowerPoint and accompanying resources have been designed to cover point 6.1.6 of the AQA GCSE Combined Science specification and include explanations of genome, chromosome, gene, allele, genotype, homozygous, heterozygous, phenotype, dominant, recessive and gamete.
The key term, genome, was met earlier in topic 6 so the lesson begins with a knowledge retrieval with the definition for this term. As the genome is the entire DNA of an organism, the next task challenges the students to identify three errors in a passage about DNA. This challenges their recall of the structure of this chemical as a double helix, its location in an eukaryotic cell in the nucleus and an understanding that the gene codes for the sequence of amino acids in a specific protein. This leads into discussions about chromosomes and genes and time is taken to explain that homologous chromosomes have the same genes at the exact same gene loci. The students will learn that alternative forms of the gene (alleles) can be found at these loci and that these structures explain the differences in inherited characteristics. Moving forwards, the main section of the lesson describes the link between the dominant and recessive alleles, homozygous and heterozygous genotypes, and the physical expression as the phenotype. The final key term is gamete, and the students are challenged to recognise a definition for this term using their knowledge of meiosis. Two progress and understanding checks complete the lesson and check on the students’ ability to recognise and write definitions for these 11 terms and to use them accurately in a written description
This lesson describes how the alveoli are adapted for gas exchange by diffusion between the air in the lungs and the blood capillaries. The PowerPoint and accompanying resource are part of the second lesson in a series of 2 which have been designed to cover the content of point 8.2 & 8.3 of the Edexcel GCSE Biology and Combined Science specifications.
During the 1st lesson in this series, the students were shown how to calculate the surface area to volume ratio and so this lesson begins by challenging them to recall that the larger the organism, the smaller the ratio. This is done through the PLAY YOUR CARDS RIGHT format as shown in the cover picture, and leads into the key idea that complex multicellular organisms like humans have developed a range of different adaptations to increase this ratio at their exchange surfaces. Moving forwards, time is taken to consider and discuss how the following adaptations of the alveoli affect the rate of diffusion:
large surface area
lining of the alveoli consisting of a single layer of flattened cells
maintenance of a steep concentration gradient
Each feature is related to diffusion and current understanding and prior knowledge checks are used to allow the students to assess their progress and to challenge them to make links to other topics of the course. All exam questions have mark schemes embedded into the PowerPoint
This lesson describes the key steps involved in transcription, the 1st stage of protein synthesis. The PowerPoint and accompanying resource are part of the first lesson in a series of 2 lessons which have been designed to cover the content of point 3.8 of the Edexcel GCSE Biology specification.
According to the specification, the students are expected to know this process in considerable detail, and the lesson has been planned to reflect this. In a previous lesson in topic 3, the students were introduced to the definition of a gene as a section of a DNA molecule that codes for the sequence of amino acids in a protein. They will learn that this represents coding DNA, so time is then taken to explain that not all DNA codes for proteins and that there are sections of non-coding DNA located in front and behind each gene. This is vital information as it leads into the start of the process, where the binding of RNA polymerase to a section of non-coding DNA located in front of the gene is the trigger for the start of transcription of that particular gene. Moving forwards, a step by step guide describes the key steps which include the lining up of the RNA nucleotides against the exposed bases and the formation of mRNA through the reactions catalysed by RNA polymerase. Students are given key details of RNA nucleotides, specifically the inclusion of uracil bases, and an understanding check challenges them to determine the sequence of RNA bases that will line up against a template strand. These current understanding checks along with prior knowledge checks are found throughout the lesson to allow the students to assess their progress and to challenge them to make links to previous lessons.
This revision lesson will challenge the students on their understanding of the details of photosynthesis (topic B4.1 of the AQA GCSE specification). It has been designed to be used in the final weeks before the GCSE exams, or in the lead up to mocks or an end of topic test, and provides multiple opportunities for the students to check their understanding of the reaction, limiting factors, the inverse square law and the uses of glucose.
The lesson contains a range of tasks, including exam-style questions and quizzes, that will maintain engagement whilst allowing any misconceptions or mistakes to be addressed.
The 4 lessons included in this mini-bundle are detailed and engaging and have been planned to cover the details of topic 4.4, genetic diversity and adaptation, as laid out in the AQA A-level biology specification.
Each lesson is filled with tasks as well as current understanding checks and prior knowledge checks to encourage students to make links between the 4 lessons in this topic as well as across the earlier topics.
This engaging revision lesson challenges the students on their knowledge of the communicable diseases topic as detailed in the AQA GCSE combined science specification. The PowerPoint and accompanying resources include a range of tasks that enable the students to assess their knowledge of the 7 viral, bacterial, fungal and protist infections that are listed in topic B3.1. This lesson has been designed to be used as a final revision resource as the GCSE exams approach, or as part of revision for an end of topic test.
Each of the 11 revision lessons included in this bundle are detailed and engaging and provide the students with multiple opportunities to check their understanding of the following topics in the AQA Combined Science course:
Random and systematic errors
Independent, dependent and control variables
Pathogens
Viral, bacterial, fungal and protist diseases
The movement of water molecules by osmosis
Calculating acceleration from a velocity-time graph
Using resultant force and F=ma
Reactions of acids with metals
Redox reactions and the loss and gain of electrons
The properties of waves
Refraction
Control systems in homeostasis
The regulation of blood glucose concentration
Properties of ionising radiation
Detecting radiation based on penetrating power
Half-life
Decay equations
Classification system using kingdom, phylum, class, order, family, genus and species
The binomial naming system
The three-domain system
Chromosomes
The 3 stages of the cell cycle including mitosis
The formation of gametes by meiosis
Mole calculations
Concentration of solutions
Protons, electrons, and neutrons in atoms, ions and isotopes
Bond energy calculations
The rate of photosynthesis and limiting factors
These resources can be used in the final weeks and months before the GCSE examinations or for revision before end of topic tests or mocks.
If you want to view the quality of these resources, download the control of blood glucose, reactions of acids with metals, mitosis and meiosis and radiation resources as these have been shared for free.
All 4 lessons included in this bundle are fully-resourced and have been designed to cover the content as detailed in topic 6.2 (Nervous coordination) of the AQA A-Level Biology specification. The specification points that are covered within these lessons include:
The structure of a myelinated motor neurone
The establishment of a resting potential
Depolarisation
All or nothing principle
Factors affecting the speed of conductance
The lessons have been written to include a wide range of activities and numerous understanding and prior knowledge checks so students can assess their progress against the current topic as well as be challenged to make links to other topics within this module and earlier modules
If you would like to sample the quality of the lessons, download the saltatory conduction lesson which is free
This bundle contains 19 fully-resourced and detailed lessons that have been designed to cover the content of topic 6 of the AQA A-level Biology specification which concerns the responses of organisms to stimuli. The wide range of activities included in each lesson will engage the students whilst the detailed content is covered and the understanding and prior knowledge checks allow them to assess their progress on the current topic as well as challenging them to make links to other related topics. Most of the tasks are differentiated to allow differing abilities to access the work and be challenged.
The following sub-topics are covered in this bundle of lessons:
Survival and response in flowering plants
The role of sensory receptors as outlined by the Pacinian corpuscle
The human retina as a sensory receptor
The differences in rods and cones that enable different sensitivity to light, colour and visual acuity
The roles of the SAN, AVN, Bundle of His and Purkyne fibres in the conduction system of the heart
The control of heart rate
The structure of a myelinated motor neurone
The factors that affect the speed of conduction of an impulse
The generation and transmission of nerve impulses
The transmission at a cholinergic synapse and a neuromuscular junction
Summation
The contraction of skeletal muscles
The structure and properties of slow and fast skeletal muscle fibres
The principles of homeostasis including negative feedback systems
The control of blood glucose concentration by the controlled release of insulin and glucagon
The causes and control of diabetes type I and II
The gross structure of the kidney
The detailed structure of the nephron
The production of glomerular filtrate
The reabsorption of glucose and water in the PCT
Maintaining a gradient of sodium ions in the medulla by the loop of Henle
The role of the hypothalamus, posterior pituitary and ADH in osmoregulation
This is one of the 8 topics which have to be covered over the length of the 2 year course and therefore it is expected that the teaching time for this bundle will be in excess of 2 months
If you want to see the quality of the lessons before purchasing then the lessons on responses in flowering plants, saltatory conduction, the contraction of skeletal muscles and ultrafiltration are free resources to download
This detailed bundle contains 7 lesson PowerPoints and accompanying resources that cover the following specification points found within topic 9.9 of the Edexcel A-level Biology B specification:
The gross and microscopic structure of the mammalian kidney
The formation of urea in the liver from excess amino acids
The removal of urea from the bloodstream by ultrafiltration
The selective reabsorption of solutes in the proximal tubule
The reabsorption of water through use of a countercurrent multiplier in the loop of Henel
The differences between endotherms and ectotherms
The regulation of temperature by endotherms by a range of behavioural and physiological responses
The wide range of tasks, which include exam-style questions with detailed markschemes, focused discussion points and quiz competitions which introduce key terms and values, will engage and motivate the students whilst the content is covered in the detail required at A-level
If you would like to sample the quality of the lessons included in this bundle, then download the formation of urea and ultrafiltration lesson as this has been shared for free
This bundle contains 17 lessons which are engaging and highly detailed in order to cover the difficult content as set out in topic 9 (Control systems) of the Edexcel A-level Biology B specification.
The lesson PowerPoints and accompanying resources contain a wide variety of tasks which cover the following specification points:
Homeostasis is the maintenance of a state of dynamic equilibrium
The importance of maintaining pH, temperature and water potential in the body
The meaning of negative feedback and positive feedback control
The principles of hormone production by endocrine glands
The two main modes of action in hormones
The division of the autonomic nervous system into the sympathetic and parasympathetic systems
The transport of sodium and potassium ions in a resting potential
The formation of an action potential and the propagation along an axon
Saltatory conduction
The function of synapses
The formation and effects of excitatory and inhibitory postsynaptic potentials
The structure of the human retina
The role of rhodopsin
The distribution of rods and cone cells
The control of heart rate by the autonomic nervous system
The gross and microscopic structure of the kidney
The production of urea in the liver and its removal from the blood by ultrafiltration
Selective reabsorption in the proximal tubule
Water reabsorption in the loop of Henle
Control of mammalian plasma concentration
The differences between ectotherms and endotherms
The regulation of temperature by endotherms
If you would like to sample the quality of this lesson bundle, then download the homeostasis, resting and action potentials and the formation of urea and ultrafiltration lessons as these have been uploaded for free.
This detailed and engaging lesson focuses on the importance of the excretion of carbon dioxide and urea in humans. It also looks at how the urea is formed as a result of deamination in the liver and as such covers the Core and Supplement content of the early section of topic 13 of the CIE IGCSE Biology specification.
The lesson begins with a “Crack the code” type task which will enable the students to learn the meaning of excretion and specifically how it relates to the products of metabolism. Excretion is often confused with egestion by students so this misconception is addressed immediately and as a result they will understand that carbon dioxide and urea have to be excreted whereas faeces is egested. Moving forwards, time is taken to explain why carbon dioxide needs to be excreted and links are made to the earlier topic of enzymes and how a fall in pH could affect their activity. The rest of the lesson focuses on the formation of urea in the liver. Whilst learning about deamination, students will also be introduced to the process of assimilation and the production of rge plasma protein fibrinogen is used to explain the importance of this function of the liver. In addition to understanding checks and prior knowledge checks, quiz competitions are included in the lesson to introduce key terms in a fun and memorable way.
This lesson has been designed for students studying the CIE IGCSE Biology course but is also suitable for older students who are starting the topic of excretion or the functions of the liver and want to recall the key facts.
This clear and concise lesson covers the Link reaction and its site in the cell as detailed in point 5.2.2 (d) of the OCR A-level Biology A specification. The PowerPoint explains how the product of glycolysis, pyruvate, is decarboxylated and dehydrogenated and combined with coenzyme A to form acetyl coenzyme A which will then enter the Krebs cycle.
The lesson begins with a challenge, where the students have to recall the details of glycolysis in order to form the word matrix. This introduces the key point that this stage occurs in this part of the mitochondria and time is taken to explain why the reactions occur in the matrix as opposed to the cytoplasm like glycolysis. Moving forwards, the Link reaction is covered in 5 detailed bullet points and students have to add the key information to these points using their prior knowledge as well as knowledge provided in terms of NAD. The students will recognise that this reaction occurs twice per molecule of glucose and a quick quiz competition is used to test their understanding of the numbers of the different products of this stage. This is just one of the range of methods that are used to check understanding and all answers are explained to allow students to assess their progress.
This lesson has been written to tie in with the other uploaded lessons on glycolysis and the Krebs cycle and oxidative phosphorylation.
This lesson describes the general structure of the 20 amino acids found in proteins and makes clear links to related topics such as genes. The PowerPoint has been designed to cover specification point 2.1.2 (k) of the OCR A-level Biology A course and provides a clear introduction to the following lesson on the formation of dipeptides and polypeptides.
The lesson begins with a prior knowledge check, where the students have to use the 1st letters of 4 answers to uncover a key term. This 4-letter key term is gene and the lesson begins with this word because it is important for students to understand that these sequences of bases on DNA determine the specific sequence of amino acids in a polypeptide. Moving forwards, students are given discussion time to work out that there are 64 different DNA triplets and will learn that these encode for the 20 amino acids that are common to all organisms. The main task of the lesson is an observational one, where students are given time to study the displayed formula of 4 amino acids. They are not allowed to draw anything during this time but will be challenged with 3 multiple choice questions at the end. This task has been designed to allow the students to visualise how the 20 amino acids share common features in an amine and an acid group. A quick quiz round introduces the R group and time is taken to explain how the structure of this side chain is the only structural difference. Students will be introduced to the existence of hydrophobic, hydrophilic, acidic and basic R groups so that they are able to apply this knowledge in future lessons where structure and shape is considered. Some time is also given to look at cysteine in greater detail due to the presence of sulfur atoms and once again a link is made to disulfide bridges for upcoming lessons. The lesson concludes with one more quiz round called LINK TO THE FUTURE where the students will see the roles played by amino acids in the later part of the course such as translation and in the formation of dipeptides.
This engaging lesson describes the relationship between the structure and functions of a phopholipid, focusing on the role performed in membranes. The PowerPoint has been designed to cover specification point 2.2 (g) of the CIE International A-level Biology specification and includes constant references to the previous lesson on the structure and function of triglycerides.
The role of a phospholipid in a cell membrane provides the backbone to the whole lesson. A quick quiz round called FAMILY AFFAIR challenges the students to use their knowledge of the structure of a triglyceride to identify the shared features in a phospholipid. This then allows the differences to be introduced, such as the presence of a phosphate group in place of the third fatty acid. Moving forwards, the students will learn that the two fatty acid tails are hydrophobic whilst the phosphate head is hydrophilic which leads into a key discussion point where the class has to consider how it is possible for the phospholipids to be arranged when both the inside and outside of a cell is an aqueous solution. The outcome of the discussion is the introduction of the phospholipid bilayer which is critical for the lesson in topic 4 on the fluid mosaic model. The final part of the lesson describes how proteins found floating in the cell membrane allow both facilitated diffusion and active transport to occur and this also helps to begin the preparations for the upcoming lessons.
This clear and concise lesson explores the roles of the coenzymes NAD, FAD and coenzyme A in cellular respiration as detailed in point 12.1 (d) of the CIE International A-level Biology specification.
As this specification point comes before the specification points concerning the details of the stages of respiration, this lesson has been designed to introduce the key details whilst focusing on their roles. Students will understand that NAD and FAD are reduced upon accepting hydrogen atoms and then carry these protons and electrons to the cristae where they are used in the production of ATP. In addition, they will learn that coenzyme A is used in the link reaction and helps to deliver the acetyl group to the Krebs cycle
A concise lesson presentation (26 slides) that looks at how sexual reproduction leads to variation and considers the advantages and disadvantages of this form of reproduction. The lesson begins by getting the students to recognise that sexual reproduction needs two parents and therefore two gametes. Time is taken to ensure that students understand that these gametes are produced by meiosis and therefore contain the haploid number of chromosomes. Key terminology like haploid and zygote are used throughout the lesson.
This lesson is suitable for both KS3 and GCSE students
This lesson describes the importance of the cytoskeleton, and focuses on the role of these proteins in the transport within cells and cell movement. The PowerPoint and accompanying resource have been designed to cover point 2.1.1 (j) of the OCR A-level Biology A specification and has been specifically designed to tie in with
The previous lesson covered the ultrastructure of eukaryotic cells and the function of the different cellular components and this lesson has been planned to build on that knowledge to show how the cytoskeleton allows for the movement of these organelles from one part of the cell to another. In particular, the students will recognise how the dragging movement of the motor proteins along the microtubule track is important for the proteins produced at the RER to move to the Golgi before the vesicles are then moved to the membrane for exocytosis. In this way, this lesson also covers specification point 2.1.1 (i). Other examples such as the movement of the synaptic vesicles and the contraction of the spindle fibres during anaphase are used to consolidate understanding further. The cilia and the flagellum are also described and links are made to related topics such as the primary non-specific defences against pathogens.
In order to engage and motivate the students during the 7 lessons in this module, a running quiz competition has been written into each of the lessons and 3 rounds are incorporated into this lesson. A quiz scoresheet to keep track of the points is included in this resource.
This lesson describes a range of methods that are used to conserve habitats and explains how this frequently involves the management of succession. The engaging PowerPoint and accompanying worksheets are part of the final lesson in a series of 4 lessons which have been designed to cover the content of topic 7.4 (Populations in ecosystems) of the AQA A-level Biology specification
Hours of research has gone into the planning of this lesson to source interesting examples that increase the relevance of the biological content and these include the Lizard National Nature Reserve in Cornwall, the Lake Télé Community reserve in the Republic of Congo and the marine conservation zone in the waters surrounding Tristan da Cunha. Students will learn how this form of active management conserves habitats and species in their natural environment, with the aim of minimising human impact whilst maintaining biodiversity. The main issues surrounding this method are discussed, including the fact that the impact of this conservation may not be significant if the population has lost much of its genetic diversity and that despite the management, the conditions that caused the species to become endangered may still be present.
To enrich their understanding of the importance of ex situ conservation, the Millennium Seed Bank Project in Wakehurst is used and time is taken to consider how seed banks can be used to ensure that endangered plant species avoid extinction and how the plants can be bred asexually to increase plant populations quickly.
The final part of this lesson describes how the active management of a habitat in Downe, Kent, has allowed kidney vetch to flourish, which is critical for the small blue butterfly which feeds, lives, and lays eggs on this plant. This example has been specifically chosen to further emphasise the key point that conservation frequently manages succession.
