Teaching objectives - Oxfordshire Mathematics Community
Y13 A level Mathematics31 Integration3.5 weeksTeaching objectivesaTo review knowledge of integration from Y12bTo be able to integrate expressions by inspection using the reverse of the chain rulecTo be able to integrate ekx and lnxdTo be able to integrate trigonometric functions using trig identitieseUse integration by inspectionfIntegrate using partial fractions with a linear denominator and simplify the resultgIntegrate using substitution including selecting the correct substitutionhIntegration by partsIUse integration as a limit of a sumJFind the area between 2 curves including choosing the appropriate method of integrationResources for advance preparation:StarterMain teachingIncluding key questions, key teaching points, models and resourcesNotesIncluding Support and ExtensionConsolidation/PlenaryIncluding key questions and homework1UM: can we find the area inside a parabola, a tangent and the x-axis?(extended starter)Discuss different methods available to find area under curveRecap basics of definite and indefinite integration including relevance of +cEnsure students understand that integration can be used as reverse of differentiation and to find area under curveConsider pairings, match strong students with weak. ALL students should be expected to feedback and demonstrate workingOld exam question on finding equation of line given dy/dx and a point the equation passes throughHOMEWORK:Routine practice, particularly of finding equations of lines and areas under curves2Mini whiteboardsStudents to create a polynomial function that they then differentiate. Hold up differentiated function, class to determine original function.Develop understanding of use of chain rule to aid method of integration by inspection. E.g. (2x+1)5, (2x2-3)4Dr Frost maths – integration powerpoint often forget to divide by the differential of the base function, so it is important to ensure all students have a clear understanding of this process.HOMEWORK:Routine practice from old resourcesStarterMain teachingIncluding key questions, key teaching points, models and resourcesNotesIncluding Support and ExtensionConsolidation/PlenaryIncluding key questions and homework3Introduce integration of ex and ln x, link to general principles of integrationUM: Two for one Frost maths – integration powerpoint practice from old resources4UM: trigsy integrals into integration of basic trig functions, using reverse of differentiation.Use knowledge of trig differentiation to find standard results Dr Frost maths – integration powerpoint: Where do the curves y = sin 2x and y = sin x cross? practice from old resources trig identities to integrate more complex functions.Use of double angle formulae, basic identities requirede.g. tan2x +1 = sec2xDr Frost maths – integration powerpoint teachingIncluding key questions, key teaching points, models and resourcesNotesIncluding Support and ExtensionConsolidation/PlenaryIncluding key questions and homework7Integration by inspection e.g. cosxsin2x, 2x3x2-5Tie in with previous 6 lessons practice from old resources8/9Revision of partial fractions may be usefulPartial fractions,Including definite integration and simplification of answers using ln of simplifying expressions using laws of logsExtension: repeated factors in the denominatorHOMEWORK:Routine practice from old resources of integration by substitution practice from old resources12/13Integration by substitution, selection of appropriate substitution.Link to areas under curves and problem solving useful for practising selecting the appropriate substitution practice from old resourcesStarterMain teachingIncluding key questions, key teaching points, models and resourcesNotesIncluding Support and ExtensionConsolidation/PlenaryIncluding key questions and homework14/15(second lesson) by partsDerivation of formula and appropriate useDiscussion as to choice of u and dv. Why is it best to make the polynomial u? When will this not work?Particular care of ln x and use of formula twiceLook at examples like x(x+3)6dx using by parts and substitution to show they give the same answer. A useful flow chart to assist with selecting appropriate method of integration solving: consider integral of excos xcommon errors- incorrect signs when using parts twiceHOMEWORK:Routine practice from old resources between 2 curves we find the area between sin x and sin 2x? practice from old resourcesStarterMain teachingIncluding key questions, key teaching points, models and resourcesNotesIncluding Support and ExtensionConsolidation/PlenaryIncluding key questions and homework17 methodsUse of ICT frost maths: compilation of edexcel old exam questions and use integration as the limit of a sum????? to trapezium rule & fundamental theorem of calculusHOMEWORK:Routine practice from old resources ................
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