On a Mobile Application for Learning Positive and Negative Integers1

The teaching of positive and negative integers is considered in this paper. Two types of models are presented: address - operation models like thermometer or stepping environment in Hejnýs mathematical approach and opposite quantity models like ancient China counting chopsticks or our application “Záporné ísla” (Negative numbers). With the application pupils learn how to count with positive and negative integers while integers are presented as two types of amounts red balls for positive numbers and blue balls for negative numbers. The application was created in the App Inventor, so it works on any android device including mobile phones and tablets. The application is distributed into Google Play for free.