In Design Technology work, Year Three/Four pupils completed a unit of work on ‘Alarms.’
Firstly we looked at all of the different types of alarms we come across and their purpose.
Having gathered this information, we revised work on how to make a basic circuit including a light or a buzzer. A development of these circuits was the inclusion of a switch.
Once we had worked out how to make the mechanics of the alarm, we designed the alarm itself and decided what it was hoping to protect. Some were to protect jewellery, with the alarm sounding when the jewellery was removed from its place. One alarm alerted the owner to their briefcase being picked up. Others relied on the idea of a pressure pad to set off a burglar alarm when stood on.
Don't Be Alarmed!
In Design Technology work, Year Three/Four pupils completed a unit of work on ‘Alarms.’
Firstly we looked at all of the different types of alarms we come across and their purpose.
Having gathered this information, we revised work on how to make a basic circuit including a light or a buzzer. A development of these circuits was the inclusion of a switch.
Once we had worked out how to make the mechanics of the alarm, we designed the alarm itself and decided what it was hoping to protect. Some were to protect jewellery, with the alarm sounding when the jewellery was removed from its place. One alarm alerted the owner to their briefcase being picked up. Others relied on the idea of a pressure pad to set off a burglar alarm when stood on.
Posted by Emma Wilkinson on May 20, 2008 03:38 PM
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