1.48 Bound Calculations Higher GCSE PowerPoint Lesson

 In this 21-slide lesson, pupils will learn how to apply upper and lower bounds to a range of real-life and exam-style calculations. Building on prior knowledge of rounding and error intervals, pupils will explore how measurement accuracy impacts final answers in real-life contexts such as perimeter, area, and speed problems. Through guided examples and practice tasks, students will develop confidence in identifying appropriate bounds, interpreting calculator displays, and justifying whether an answer is a maximum or minimum possible value.

This lesson is for the higher tier only. Lesson on working out upper and lower bounds is available under the foundation number lessons.

The lesson includes:

• Clear, guided examples

• Discussion opportunities from Think, Pair, Share

• Mini whiteboard section to check understanding and clarify misconceptions

• Two structured tasks to practise key skills

• Challenge activity to extend and deepen learning

Perfect for engaging learners while reinforcing essential numeracy concepts.