# Surds definition of surds activity1

From Karnataka Open Educational Resources

**Activity-1**: Recognise surds

## Estimated Time

Half an hour

## Materials/ Resources needed

Teachers give examples for rational root of rational numbers, irrational root of irrational number and irrational root of rational number.

## Prerequisites/Instructions, if any

Should know rational number and irrational number.

## Multimedia resources

Websites and wikipedia

## Website interactives/ links/ simulations/ Geogebra Applets

## Process (How to do the activity)

Give students some numbers having square root, cube root etc. and ask to simplify them. catagorise the numbers

- Rational root of rational number
- Irrational root of irrational number
- Irrational root of rational number, and defined the number.

## Developmental Questions (What discussion questions)

- Which one of the following is not a surd, Give reason.
- Define surd

## Evaluation (Questions for assessment of the child)

- Identify rational number and irrational number
- Define surd
- Identify the surd

## Question Corner

## Activity Keywords

**To link back to the concept page**
Surds