<p>In this study I will find out which thoughts and alternative conceptions pupils have about photosynthesis, decomposing and breeding. The method used was qualitative semi-structured interviews with pupils in preschool class and in the third grade. They were interviewed about what a flower needs in order to live, die and to propagate themselves. The result shows that the students have alternative conceptions about these issues. There are no big differences in the notions of the average classes. There is a relation between the children’s way of living and their notions.</p><p>The result shows that all 17 pupils know that the flowers need water and soil. Half of them know that it also needs sun. But only 2 pupils know that the flowers need sugar to live.</p>

In this study I will find out which thoughts and alternative conceptions pupils have about photosynthesis, decomposing and breeding. The method used was qualitative semi-structured interviews with pupils in preschool class and in the third grade. They were interviewed about what a flower needs in order to live, die and to propagate themselves. The result shows that the students have alternative conceptions about these issues. There are no big differences in the notions of the average classes. There is a relation between the children’s way of living and their notions. The result shows that all 17 pupils know that the flowers need water and soil. Half of them know that it also needs sun. But only 2 pupils know that the flowers need sugar to live.