Myths about teaching can hold you back
- Year 7
Multiplication and division where two or more values are negative
I can use the mathematical structures that underpin multiplication and division of negative integers.
- Year 7
Multiplication and division where two or more values are negative
I can use the mathematical structures that underpin multiplication and division of negative integers.
Lesson details
Key learning points
- Multiplication with negative numbers can be turned into a subtraction.
- Division is the inverse operation of multiplication.
- The rules for multiplying with negative numbers can be extended to division.
Keywords
Absolute value - The absolute value of a number is its distance from zero. E.g. 5 and (-5) are both 5 away from zero and so both have an absolute value of 5.
Product - A product is the result of two or more numbers multiplied together.
Common misconception
Using the phrase '2 negatives make a positive'.
Ensuring pupils understand the structure of the maths and not 'tricks' is so important. Encourage the use of correct language at all times
To help you plan your year 7 maths lesson on: Multiplication and division where two or more values are negative, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 maths lesson on: Multiplication and division where two or more values are negative, 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.
Equipment
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Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Work out $$2\times (-3)$$
Q2.Match each calculation to its correct answer.
$$4\times (-3)$$ -Â
$$(-12)$$
$$(-3)\times 5$$ -Â
$$(-15)$$
$$5\times (-6)$$ -Â
$$(-30)$$
$$(-4)\times 2$$ -Â
$$(-8)$$
$$10\times (-2)$$ -Â
$$(-20)$$
Q3.Select all the calculations that have a product of $$-24$$
Q4.Work out: $$(-32)\div8=$$
Q5.Select all the calculations that have an answer of $$-7$$
Q6.Match each multiplication calculation to a division calculation with the same answer.
$$(-2)\times9$$ -Â
$$(-72)\div4$$
$$2\times(-4)$$ -Â
$$(-64)\div8$$
$$4\times(-5)$$ -Â
$$(-100)\div5$$
$$(-4)\times3$$ -Â
$$(-36)\div3$$
Assessment exit quiz
6 Questions
Q1.Select all the calculations which will have a negative answer.
Q2.Work out: $$(-5)\times(-3)=$$
Q3.Match each multiplication to the correct product.
$$(-6)\times(-4)$$ -Â
$$24$$
$$(-6)\times4$$ -Â
$$(-24)$$
$$3\times(-4)$$ -Â
$$(-12)$$
$$(-3)\times(-4)$$ -Â
$$12$$
$$9\times2$$ -Â
$$18$$
$$3\times(-6)$$ -Â
$$(-18)$$