13 names from the phone book Whiteboard exercise Play

A mobile phone Slideshow Play

Application of electric motors Student activity Play

Complex reflex arc – answering the phone Animation Play

Cost of a phone call Whiteboard exercise Play

Devices that use microwaves Slideshow Play

Microwaves Student activity Play

Microwaves Animation Play

Microwaves in the kitchen and in a mobile phone Student activity Play

Microwaves in the kitchen and in a mobile phone Whiteboard exercise Play

Mobile telephony Slideshow Play

Mobile telephony Whiteboard exercise Play

Mobile telephony Student activity Play

Mobile telephony Slideshow Play

Mobile telephony Illustration Play

Radio waves Student activity Play

Radio waves and microwaves Student activity Play

Sampling frame Student activity Play

Sampling frame Whiteboard exercise Play

Satellite telephones Student activity Play

Satellite telephony Slideshow Play

Telephony Student activity Play

Telephony Whiteboard exercise Play

Threats related to electromagnetic waves Whiteboard presentation Play

Threats related to electromagnetic waves Class activity Play