Measurement estimation activities: The interpretation of Primary School teachers

Abstract This article presents the characterization of the mathematical and pedagogical knowledge regarding the measure estimation concept possessed by the Chilean primary school teachers based on the way they propose to utilize activities aimed to work on this concept. In the analysis, we use a definition of the measurement estimation concept constructed from the previous work of different authors. The methodology is of a descriptive and interpretative nature. The results shows weaknesses in the teachers knowledge about the measurement estimate and its use in the classroom, noting that some teachers confuse the measurement estimation activities indistinctly with the measurement activities or interpreting that they are those activities in which a random response can be given without justification, evidencing the need to include measurement estimation in teacher training.