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Solve the mystery

Line By Line. Choose the activity( ies ) that best suit your students’ learning needs. Improve understanding of how marks are allocated by using the mark scheme to mark an incorrect solution . View on the IWB..Mark scheme can be printed as support.

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Solve the mystery

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  1. Line By Line Choose the activity(ies) that best suit your students’ learning needs Improve understanding of how marks are allocated by using the mark scheme to mark an incorrect solution . View on the IWB..Mark scheme can be printed as support. Unravel facts and questions to focus on stepping stones in a solution. Can be printed or viewed on the IWB Solve the mystery Marking exercise Focus on the links between the steps in a solution by ordering the steps . Can be printed or viewed on the IWB Improve understanding of how marks are allocated by using the mark scheme to mark a n incorrect solution. For printing. Mark scheme can be printed as support. Put the steps in order Print marking exercise Identify what is being calculated in each step . Can be printed or viewed on the IWB Practice putting together a concise, clear solution to an exam-style question. Can be printed or viewed on the IWB Explain the steps Focus on QWC Emphasise the importance of each step in a solution by writing a mark scheme. Students can assess their answer against the given mark scheme. Print or view on the IWB Write the mark scheme Reflection Students can assess what they still need to learn and the grade they are working at. Test yourself cards Print so students can learn the key points. Take home or work in pairs. Content covered

  2. Line By Line – Content covered Reflection

  3. Line By Line – Solve the mystery The cards give clues to help you solve a mystery. Some give information, others ask questions. Solve the mystery! Explain how you solved the mystery. Include the order in which you used the cards. This is an exam question. What do you think the question is?

  4. Line By Line – Put the steps in order A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. These are the steps in the solution. Put them in order and explain what is happening in each step. Can you insert them into the ‘running order’ for the mystery cards?

  5. Line By Line – Explain the steps A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. Explain the steps in the solution

  6. Line By Line – Write the mark scheme A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. • Volume of the cube = 6 x 6 x 6 • = 216 cm³ • Radius of cylinder = 4 ÷ 2 • = 2 cm • Area of the base = r² • = 3.14 x 2² • = 12.56 cm² • Height of cylinder = 6 – 2 • = 4 cm • Volume of cylinder = r²h • = 12.56 x 4 • = 50.24 cm³ • Volume of wood = 216 – 50.24 • = 165.76 cm³ There are 4 marks. Write a mark-scheme. What mistakes do you think people will make when doing this question? Answers

  7. Line By Line – The mark scheme • Volume of the cube = 6 x 6 x 6 • = 216 cm³ • Radius of cylinder = 4 ÷ 2 • = 2 cm • Area of the base = r² • = 3.14 x 2² • = 12.56 cm² • Height of cylinder = 6 – 2 • = 4 cm • Volume of cylinder = r²h • = 12.56 x 4 • = 50.24 cm³ • Volume of wood = 216 – 50.24 • = 165.76 cm³ A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. B M M A

  8. Line By Line – Marking exercise A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. • Volume of the cube = 6 x 6 x 6 • = 216 cm³ • Radius of cylinder = 4 ÷ 2 • = 2 cm • Area of the base = r² • = 3.14 x 2² • = 12.56 cm² • Volume of cylinder = r²h • = 12.56 x 6 • = 75.36 cm³ • Volume of wood = 216 – 75.36 • = 140.64 cm³ Mark this answer 1 1 3/4 marks 1 0

  9. Line By Line – Print marking exercise A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. • Volume of the cube = 6 x 6 x 6 • = 216 cm³ • Radius of cylinder = 4 ÷ 2 • = 2 cm • Area of the base = r² • = 3.14 x 2² • = 12.56 cm² • Volume of cylinder = r²h • = 12.56 x 6 • = 75.36 cm³ • Volume of wood = 216 – 75.36 • = 140.64 cm³ Mark this answer /4 marks

  10. Line By Line – Focus on QWC A tea-light holder is made by hollowing out a cylinder from a cube of wood. The sides of the cube are 6 cm, and the diameter of the cylinder is 4 cm. The cylinder leaves a layer of wood 2 cm thick to support the tea-light. Work out the volume of the wood. Write out your solution to this question clearly and using correct mathematical statements. Ask another pupil in the class to give you feedback on it.

  11. Line By Line – Reflection Click below the button to reveal the grades I can E D C C C • Self assess • Find or write some evidence to support your assessment • Write down your next steps • You may wish to use the Test Yourself cards.

  12. Line By Line – Test yourself cards These cards have the things you may need to learn in order to do container questions. Copy down the ones YOU need or ask your teacher for a printout.

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