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Rounding Rollercoaster:

An introduction to rounding (on a rollercoaster theme).

Age: 8+yrs

Learning Objectives:
  • Year 3: Pupils connect decimals and rounding to drawing and measuring straight lines in centimetres, in a variety of contexts. (non statutory)
  • Year 4: Pupils connect estimation and rounding numbers to the use of measuring instruments. (non statutory)
  • Year 5: Pupils use rounding to check answers to calculations and determine, in the context of a problem, levels of accuracy.
  • Year 6: Pupils divide numbers up to 4 digits by a two-digit whole number using the formal written method of long division, and interpret remainders as whole number remainders, fractions, or by rounding, as appropriate for the context
  • Year 6: Pupils can explore and make conjectures about converting a simple fraction to a decimal fraction (for example, 3 ÷ 8 = 0.375). For simple fractions with recurring decimal equivalents, pupils learn about rounding the decimal to three decimal places, or other appropriate approximations depending on the context. (non statutory)
  • Year 6: Pupils also develop their skills of rounding and estimating as a means of predicting and checking the order of magnitude of their answers to decimal calculations. This includes rounding answers to a specified degree of accuracy and checking the reasonableness of their answers.

Instructions:
  1. There are 10 games. The left hand side is broadly Year 3 to 4 and the right hand side is broadly Year 5 & 6.
  2. The 'Mix It Up' games include a mix of the different levels.
  3. There are 10 questions.
  4. Read the question and choose the deciding digit. - The roller coaster moves to your answer.
  5. Now decide, are you going to round up or down? - Press on an arrow.
  6. Once the rollercoaster has moved to the end/start then choose what the rounded number will be.
  7. After 10 goes there's a fun animation
  8. There's also the occasional sassy rollercoaster guest! They just look at you.
  9. You can check which questions you answered or got wrong by pressing on the progress circles on the LHS.

Have fun!


Music credit: "Happy Times" by Speedy the Spider


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