Advanced problem solving with rounding, estimation and bounds
I can use my knowledge of rounding, estimation and bounds to solve problems.
Advanced problem solving with rounding, estimation and bounds
I can use my knowledge of rounding, estimation and bounds to solve problems.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Rounding and estimation are practical maths skills.
- Sometimes you will need to apply common sense to rounding in context.
- Using your knowledge of arithmetic procedures, you can determine which bounds to calculate with.
Keywords
Lower bound - The lower bound for a rounded number is the smallest value that the number could have taken prior to being rounded
Upper bound - The upper bound for a rounded number is the smallest value that would round up to the next rounded value
Error interval - An error interval for a number x shows the range of possible values of x. It is written as an inequality a ≤ x < b
Common misconception
Truncating the numbers rather than rounding when considering the suitable degree of accuracy.
Emphasise that the numbers are being rounded and therefore the digit in the next decimal place must be considered.
To help you plan your year 10 maths lesson on: Advanced problem solving with rounding, estimation and bounds, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Advanced problem solving with rounding, estimation and bounds, 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 Rounding, estimation and bounds unit, dive into the full secondary maths curriculum, or learn more about lesson planning.