DescriptionThe maths skills workbook helps learners to develop their maths skills in the context of the Cambridge IGCSE™ Biology syllabus. These skills are crosslinked to the coursebook to help students understand how to use them. Practice exercises provide opportunities for learners to practise each maths skill. To support students in acquiring these skills, the exercises gradually increase in complexity. Practice questions provide opportunities for students to practise their skills in an active learning format such as discussion opportunities and pair work. Exam-style questions give students the chance to apply the skills they have learnt in an exam-style context. In the last chapter, students will need to select which maths skills they ought to apply in different contexts, without the structure and guidance provided in each of the chapters, helping them become confident, independent learners.Key FeaturesWritten by experts in both biology and mathematics based on research carried out by the Nuffield Foundation and the Association for Science Education (ASE)Maths skills are crosslinked to other resources in the series to help students understand how to use themPractice exercises gradually increase in complexity to support students in developing maths skillsWorked examples illustrate the concept, provide a skills-based step-by-step approach to answering a question, helping learners to develop their thinking processesThe ‘Look out’ feature makes students aware of common misconceptions that might be holding them backExam-style questions require students to select which maths skills they ought to apply in different contexts, without the structure and guidance provided in each of the chapters, helping them become confident, independent learnersTable of ContentsHow to use this seriesHow to use this bookIntroductionSkills gridRepresenting valuesUsing unitsChoosing the correct unitUsing unit symbolsUsing derived unitsRepresenting very large and very small numbersWriting very large numbers in standard formWriting very small numbers in standard formUsing unit prefixes and converting unitsUsing powers of tenUsing negative powers of tenUsing unit prefixesConverting unitsExam-style questionsWorking with dataNaming types of dataIdentifying independent and dependent variablesIdentifying types of dataCollecting dataChoosing a suitable measuring instrumentReading the correct value on measuring instrumentsUsing the correct number of significant figuresRecording and processing dataDesigning a suitable results tableCalculating the meanExam-style questionsDrawing graphs and chartsDrawing bar chartsChoosing a suitable scale for the y-axisDrawing histogramsPutting the data into classesDrawing line graphsDrawing the axesPlotting the data pointsDrawing the line or curve of best fitExam-style questionsInterpreting dataInterpreting bar charts, histograms and pie chartsIdentify the categories and describe what the data showInterpreting relationships in graphsInterpreting straight-line graphsInterpreting more complex line graphsInterpreting scatter graphsReading values from a line graphInterpolationExtrapolationExam-style questionsDoing calculationsCalculating percentagesCalculating percentagesCalculating percentage changeUsing scale drawings and magnificationInterpreting scale drawingsUsing the magnification formulaUnderstanding ratio and probabilityCalculating ratioCalculating probabilityExam-style questionsWorking with shapeCalculating areaCalculating the surface area of a cube and a rectangular blockCalculating the area of a circleExam-style questionsAdditional questions involving several maths skillsGlossaryAcknowledgements.