Abstract
The EU project kidsINNscience (Innovation in Science Education - Turning Kids on to Science, 2009- 13; 7th Framework Programme) aims to innovate science and technology education. Starting from the common practice of plant growing in kindergarten and primary school, one of the practices suggested using potatoes to face children’s common idea that they are fruits, growing on trees like apples. Adapting this idea to the Swiss school (kindergarten and primary), we stressed the inquiry-basedlearning aspects of the potato growing experience, studying how children build and reorganize their discoveries and observations about plants in general and potato in particular, making science by analogy and representational redescription.