Browsing by Author "Thiel, Leena"

The purpose of this study was to carry out a two phase design study. The aim of the first phase was to create learning material for the division of decimal numbers and after that gather evaluation information of the material. In the second phase the objective was to use the evaluation information to modify the learning material so it can be better adapted to school lessons. The main objective in developing the learning material was to highlight student oriented methods and the use of concrete tools and assignments related to the context. In the first phase of the study the learning material was created using a theory-based research method. In the second phase two teachers were interviewed and asked to evaluate the learning material. Partly transcribed interviews were analyzed by using the guidelines of qualitative research content analysis. The results of this study show that teachers considered the learning material to be useful. Teachers interview estimated that student oriented methods are well suited for the learning material. There still were parts that needed to be improved. Development process can be continued by letting students to test the learning material and simultaneously collecting data of the effectiveness of the learning material.