The issue of students' difficulties in processing operations with percentages has been
addressed in several international research studies from a qualitative perspective. In this …

The GeomBot is a drawing robot that combines the well-known strengths and opportunities
offered by Scratch with those of Papert's original robotic drawing-turtle. In this study we look …

We report an example of a research approach aimed at gathering quantitative pieces of
evidence of solid findings in mathematics education. The main goal of this project is to …

In this paper we interpret pervasive difficulties with second degree inequalities as a macro-
phenomenon emerging from Large Scale Assessment. In line with the theory of reification …

The pandemic crisis that affected us in December 2019 is still reflected in teacher training. In
this article, we describe a teacher-training experiment focused on the use of large-scale …

Standardized Assessment (SA) is a practice spread all over the world, performed both by
single nations and international organizations such as OCSE-PISA and IEA-TIMMS. If we …

In this chapter, we introduce the notion of meta-resource, defined as a material resource
which has been explicitly designed for supporting mathematics teachers' planning of …

In this paper we describe a pre-service teacher professional development program based
on Meta-Didactical Transposition model. We focus on the encounter between the …

This single descriptive case study explores how ongoing and collaborative inquiry-based
professional development supports educators as they explore, develop, and apply practices …

Our study fits within the strand of research linking large-scale assessments and mathematics
education. In particular, our research is based on the use, in teacher professional …