Starter quiz
- A number that has exactly 2 factors is a ______ number.
- 'prime' ✓
- Which of the following will be less than 20?
- ✓
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- ✓
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- × is ______ than × .
- 'greater' ✓
- Using this fact, × = , which of the following are true?
- × =
- × = ✓
- × = ✓
- × = ✓
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- Calculate × × 15. Give your answer as a mixed number.
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- ✓
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- Calculate × by writing each numerator and denominator as a product of its prime factors.
- ✓
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Exit quiz
- Which of the following is the correct definition for an improper fraction?
- A fraction where the numerator is greater than the denominator.
- A fraction where the denominator is greater than the numerator.
- A fraction where the numerator is greater than or equal to the denominator. ✓
- A fraction where the denominator is greater than or equal to the numerator.
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- Convert into an improper fraction.
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- ✓
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- Calculate × 13.
- ✓
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- Which of the following is not a correct method for calculating × ?
- ×
- 1 × 2 + × ✓
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- Calculate × .
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- ✓
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- Use the most efficient method to calculate × . Give your answer in its simplest form.
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- ✓
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Worksheet
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Presentation
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Lesson Details
Key learning points
- Mixed numbers can be converted into improper fractions.
- It is not necessary to convert both fractions.
- Each fraction should be considered to decide the most efficient way to convert.
Common misconception
Only finding the product of the integers and fractional parts when multiplying mixed numbers.
Link back to the area model, there will be 2 parts which they have not found the area of.
Keywords
Product - A product is the result of two or more numbers multiplied together.
Proper fraction - A proper fraction is a fraction where the numerator is less than the denominator.
Improper fraction - An improper fraction is a fraction where the numerator is greater than or equal to the denominator.
Mixed number - A mixed number is an improper fraction written as its integer part plus the fractional part where the fractional part is a proper fraction.
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