Program Hot Potatoes; primary education; mathematical knowledge; didactic test

At present time, the information and communication technologies (ICTs) come to the forefront very markedly, and it has even in the primary education. Pupils acquire the basic skills and knowledge how to work with the computer already in the primary school. The connection ICTs with the learning process can be, for example the program Hot Potatoes. It is a software pocket, enabling the creation of the feedback on the basic of the testing the knowledge of pupils. The software has the six different applications, namely: JQuiz, JCloze, JMatch, JMix, JCross and Masher. They allow us to create the different interactive exercises, combine them into one unit and publish them as Web Page.