• Explore the relationship between decimals, fractions and percentages.
• Demonstrate a simple example of the technique of trial and improvement.
• Extend understanding of the system of place value for decimal fractions.
• Provide entertaining lesson material, with opportunities for further exploration.
• Demonstrate a practical problem-solving approach

After watching the programme, students should:

• Appreciate the equivalence of numbers expressed as fractions, decimals or percentages.
• Understand the meaning of place value for decimal fractions, particularly tenths and hundredths.
• Be aware that the decimal and fractional forms of a number are related, be able to convert between them, and recognise useful decimal and percentage equivalents for commonly used fractions.
• Appreciate that problems can be solved to varying degrees of accuracy.
• Recognise the benefits of adopting a systematic approach to guessing a value, and see the need for recording and monitoring results.
• Understand the use of a scale to record decimal values.
• Be familiar with the language and symbolism used to discuss numbers that are ‘between’ whole numbers.