As an important part of adaptive learning systems, and having a leading role when measured in individual differences literature, working memory (WM) is an important variable for determining individual differences. N-back tasks are kind of measuring scales/tools of working memory and oftenly used in recently studies. When talking about cognitive processes, executive functions are the first thing coming to mind. They are related to prefrontal cortex of the brain and controlled by "central executive" according to Baddeley's Model of WM. As named "workbench of cognition" by Klatzky (1980), WM is more than short term memory (STM). WM keeps information in a specific time (what STM does), then transforms the information according to the required components of performance and combines the all parts for a conclusion. In other words, WM has an important role in processing and construction of knowledge. The aim of this study is to discuss the usage of a multi-media based open source n-back task software, which is translated into Turkish by researchers, as a data collection tool and to share usage suggestions in learning environments.