Myths about teaching can hold you back
- Year 7
Simplifying multiplication and division using multiples of 10
I can factorise multiples of 10^n in order to simplify multiplication and division of both integers and decimals.
- Year 7
Simplifying multiplication and division using multiples of 10
I can factorise multiples of 10^n in order to simplify multiplication and division of both integers and decimals.
Lesson details
Key learning points
- Factorising multiples of 10 can scale the calculation to easier values.
- It is important to consider place value so answers are scaled back correctly when multiplying.
- Factorising multiples of 10 is one of the multiplication and division strategies.
Keywords
Product - A product is the result of two or more numbers multiplied together.
Partitioning - Partitioning is the act of splitting an object or value down into smaller parts.
Common misconception
That 0.0004 is one thousand times smaller than 4 as there are three zeros after the decimal point.
The use of a place value or Gattegno chart is invaluable here to highlight this misconception . The 4 is in the 10 thousandths column.
To help you plan your year 7 maths lesson on: Simplifying multiplication and division using multiples of 10, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 maths lesson on: Simplifying multiplication and division using multiples of 10, 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.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 3 maths lessons from the Arithmetic procedures with integers and decimals unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Select all the calculations which have a negative answer.
Q2.Work out: $$(-4)\times(-6)=$$
Q3.Match each multiplication to the correct product.
$$3\times(-8)$$ -
$$(-24)$$
$$(-6)\times2$$ -
$$(-12)$$
$$(-6)\times(-6)$$ -
$$36$$
$$(-6)\times(-4)$$ -
$$24$$
$$(-6)\times6$$ -
$$(-36)$$
$$(-6)\times(-2)$$ -
$$12$$