Circles, frustums and cylinders revision: Difference between revisions

|topic= Area and perimeter of sectors and segments; volume and surface area of cylinders and truncated cones; similarities and unit conversion.

|age=Secondary KS4 higher A-A* material

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|strategy= This resource offer students the opportunity to measure and calculate with large size cylinders and frustum. The challenge for students is to work with ‘real life’ numbers: Scale factors which are not rounded, and sectors with unconventional angle size such as 187 degrees. Teachers have the opportunity to assess students’ work using questioning. It is also a fantastic opportunity to assess students’ ability to communicate the maths to peers. The pedagogical purposes are to revise all circle material, and to introduce the challenge of working with less conventional measures and numbers. It would be hard to use the resource in a conventional size classroom, as the drums and large objects do take a lot of space. Students need to be able to walk around objects and measure comfortably.<br />The learning objectives are for students to be able to: <br />• Apply mathematics of circles and volumes to real objects.<br />• Assess measuring errors and work with ‘real life’ scale factors.<br />• Use a calculator for complex calculations.

|useful information=  

Teachers would require: Samba drums or equivalent large objects (Water containers, buckets, laundry baskets, bins). Large classroom or outdoor space, Tape measures, Calculators, Protractors, Jotting paper

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[[Category:Maths]] [[Category:Secondary]]