Myths about teaching can hold you back
- Year 10•
- Foundation
Accuracy of final answers
I can appreciate the accuracy in leaving an answer without carrying out the final operation.
- Year 10•
- Foundation
Accuracy of final answers
I can appreciate the accuracy in leaving an answer without carrying out the final operation.
Lesson details
Key learning points
- There is always a choice regarding how you represent a value.
- You need to consider the most suitable way for the situation.
- Rounding reduces accuracy so a rounded answer is not always useful.
- There are agreed forms: one operation remaining and the result of the operation would produce a non-terminating decimal.
- Surd form is one such acceptable way.
Keywords
Recurring decimal - A recurring decimal is one that has a digit or sequence of digits that repeat endlessly.
Terminating decimal - A terminating decimal is one that has a finite number of digits after the decimal point.
Rational number - A rational number is one that can be written in the form a/b where a and b are integers and b is not equal to 0.
Irrational number - An irrational number is one that cannot be written in the form a/b where a and b are integers and b is not equal to 0.
Surd - A surd is an irrational number expressed as the root of a rational number.
Common misconception
Surds are any number with a root symbol.
√4 is not a surd as it is equivalent to 2.
To help you plan your year 10 maths lesson on: Accuracy of final answers, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Accuracy of final answers, 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 4 maths lessons from the Surds unit, dive into the full secondary maths curriculum, or learn more about lesson planning.