15 September, S1 - Year 11W*

Title: Rounding & Estimation

Driving Question
Why do we bother with BIDMAS?

Learning Targets

Beginning

To be able to explain a method for rounding decimal numbers to a specific number of places.

Developing

To be able to explain a method for rounding numbers to a specific number of significant figures.

Mastering

To be able to demonstrate how to estimate the values of calculations involving positive numbers greater than one.

Resources

Beginning 

Rounding (from Ten Ticks 4, 3, page 7-8)*

Tarsia - Rounding to nearest 10, 100, 1000

We will start by looking at rounding numbers the nearest 1, 10, 100 or 1000. If you need some help take a look at this video: Rounding

We now move on to looking at rounding numbers to a set number of decimal places. If you need some help take a look at this video: Decimals Points and Significant Figures (first half).

Rounding – Decimal Place and Significant Figures (from Ten Tick 6, 3, page 19)* (top of page)

Stick on Maths
NNS 2 - Rounding Decimals and Ordering Negatives

Developing

We now move on to looking at rounding numbers to a set number of significant figures. If you need some help take a look at this video: Decimals Points and Significant Figures (second half).

Rounding – Decimal Place and Significant Figures (from Ten Tick 6, 3, page 19)* (bottom of page)

CIMT: 4.5 Rounding

Tarsia - Rounding and Limits

Mastering

Finally we look at estimating calculations. If you need some help take a look at this video: Estimation, Rounding and Estimation

CIMT: 4.6 Estimating

Estimation (from MEP 4.6)*

Homework
Watch this video before next lesson.

In your planner note down the five key points you have learnt.