A Quick response code known as a QR code is a type of 2D bar code which enables users to get access to information through a smartphone.This process is known as mobile tagging where the smartphone user points a at a QR code which opens a barcode reader application. The user then interprets the code which may contain various options such as an invitation to download a mobile application, a link to video or an SMS message or inviting the reader to respond to a poll. The Technology for QR codes was also developed by a Toyota subsidiary, Densa-Wave, which were initially used for tracking inventory (Rouse,2010). Figure 1 below is a bar chart showing the rate at which QR codes are used by the general public. This survey was conducted by
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Another way of using this code is to provide extension assignments to students who might want to access extension activity on an activity by putting the code on a class assignment.The codes are also useful in compiling research where teachers can provide codes linking to items discovered during a research by posting them in class or class databases relating to the specific topic. In relation to laboratory work, QR codes can be attached to laboratory models like dissected animals or skeletons in order for students to access directions or content related to the model. QR codes also make voting easier by students scanning the code of their desired participants (Miller,2011).
The various ways QR codes are used for educational activities have enabled users to save time and money. The use of printouts has decreased as students can access information such as assignments, announcements or instructions through QR codes which saves the cost incurred in printing out information. Moreover, the use of QR codes help students from accessing wrong websites which might not be visually healthy to students due to the pop ups or other unuseful links which tend to be dangerous to students. According to Burns (2013), QR codes are easy to make due to various websites like Qurify which indicates that what a teacher or lecturer must do is to copy and paste a long web address and as a result the website creates a code that