Myths about teaching can hold you back
- Year 7
Converting fractions with technology
I can convert from fractions to decimals and back again using the converter key on a calculator.
- Year 7
Converting fractions with technology
I can convert from fractions to decimals and back again using the converter key on a calculator.
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Lesson details
Key learning points
- A calculator can be used to simplify fractions.
- A calculator can be used to convert fractions to decimals by dividing.
- A calculator can be used to convert fractions to decimals by using the appropriate key.
- A calculator can be used to convert a decimal to a fraction by using the appropriate key.
Keywords
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.
Common misconception
The calculator rounds recurring/non-terminating decimals to 10 d.p. and it is not terminating.
The fractional form will give a clearer idea if the decimal equivalent is terminating or not.
To help you plan your year 7 maths lesson on: Converting fractions with technology, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 maths lesson on: Converting fractions with technology, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 maths lessons from the Comparing and ordering fractions and decimals (positive and negative) unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Equipment
Licence
Prior knowledge starter quiz
6 Questions
Q1.Complete the statement. A factor is a which exactly divides another .
Q2.Select all the fractions that simplify to $$5 \over 8$$.
Q3.Which of the following factors of 48 and 180 is the best choice to efficiently simplify $$48\over180$$?
Q4.Write 360 as a product of prime factors.
Q5.Which of these fractions is equivalent to $$1080 \over 2100$$
Q6.Match each fraction to its simplified equivalent fraction.
$$84\over210$$ -
$$2\over5$$
$$48\over210$$ -
$$8\over35$$
$$48\over84$$ -
$$4\over7$$
$$84\over48$$ -
$$1 \frac{3}{4}$$
Assessment exit quiz
6 Questions
Q1.Using a calculator, calculate the simplified fraction of $$96 \over 90$$.
Q2.Using a calculator, work out the answer to $${16 \over 15} \times 315$$.
Q3.Sam's calculator gives an answer as a fraction. What is the name of the key that should be pressed first on the Casio fx-991CW in order to convert this fraction to a decimal?
Q4.Using a calculator, match the decimal to the equivalent fraction.
0.77 -
$$77 \over 100$$
0.972 -
$$243 \over 250$$
3.294 -
$$1647 \over 500$$
3.924 -
$$981 \over 250$$