This is a complete lesson on estimation, looking at the mathematical definition of an estimate and how to estimate answers by rounding numbers to one significant figure. The lesson is designed with the new GCSE specification in mind.

- To understand the idea of an estimate.
- To be able to estimate answers by rounding numbers to one significant figure.

This pack is designed for GCSE higher and foundation tier students. It could also be used with Key Stage 3 students.

Included in this download are the following:

- Full lesson plan for the ‘Estimation’ lesson, including introduction, teaching content, individual activities, plenary and suggested support and extension activities
- Student Worksheet on Estimation
- Times Tables Grid
- Complete Solutions to all Questions

This is the fifth lesson in the ‘Decimals’ unit of work (foundation tier) and also the sixth lesson in the ‘Calculations, Checking & Rounding’ unit of work (higher tier).

The Decimals unit is **available as a pack** including homework activities and a unit assessment. The other lessons in the unit are:

**Lesson 1 – Addition & Subtraction of Decimals****Lesson 2 – Multiplication & Division of Decimals****Lesson 3 – Place Value****Lesson 4 – Rounding Numbers**

The Calculations, Checking & Rounding unit is also **available as a pack** with homework activities and a unit assessment. The other lessons in this unit are: