One of the most frequently seen applications of ICT in the classroom is in gathering and processing data. This is particularly useful in science, mathematics and geography, as well as for environmental studies and even sports science. Often the computer itself is used to acquire the data as well as manipulate it, courtesy of that handy little piece of kit, the datalogger.
Using a datalogger can engage students in the scientific process far more effectively than just giving them a list of data and asking them to put it into a spreadsheet, database or graphing program. Actually being able to gather the data themselves gives them ownership of the process – they are doing science rather than just studying it. They can also use these devices to design their own investigations and form their own hypotheses.
There are more dataloggers on the market now than ever, from very simple devices suitable for primary use to sophisticated beasts appropriate for A-level work. Connectivity can be an important issue with dataloggers, as most are designed for use outside the classroom but then need to be connected in some way to a computer to download and process the data.
Most use USB or serial port connections, but increasingly Bluetooth is becoming an option. This is an advanced radio technology that delivers improved range and reliability over other short-range wireless technologies. It allows cable-free interaction with dozens of Bluetooth devices including PCs, PDAs, printers, mobile phones and input devices. Here we look at some of the ones currently available for school use. Note that prices quoted below are for single units and are ex VAT. Please check the relevant manufacturers’ websites for details of pricing for sets or for special packs.
SEN Sci Data Logger. Supplier Valliant Technology.
