Approximations
Outcomes
In this lesson you will learn about:
- Rounding off numbers.
- Estimating answers to calculations.
Outcomes
In this lesson you will learn about:
This YouTube video explores the concepts of approximations and estimations.
The Earth behaves like a giant bar magnet and as such there is a magnetic field present around it. The Earth’s magnetic field is thought to be caused by flowing liquid metals in the outer core of the planet which causes electric currents and a magnetic field.
Outcomes:
This YouTube video explains how to calculate an irregular area on a map.
This YouTube video explains how to calculate a regular area on a map.
This online tutorial guides you through what information a map shows, map legends and the different types of maps which are available.
This online activity is a math game on rounding numbers.
This is an online activity that provides you with various exercises on rounding whole numbers.
This online tutorial will provide you with some guidelines on how to interpret both topographic and geologic maps.