We define and describe how subitizing activity develops and relates to early quantifiers in
mathematics. Subitizing is the direct perceptual apprehension and identification of the …

This study investigated whether mathematics education based on a multi‐tiered response to
intervention (RTI) model can support students' arithmetic competence in primary schools in …

In this paper we present statistical analyses of three textbooks used by Swedish teachers to
support year one children's learning of mathematics. One, Eldorado, is authored by Swedish …

Estimation is a primary activity in everyday life, so getting it “right” in primary school provides
a foundational basis in mathematical reasoning. This study focuses on numerosity …

The actions carried out by children are a mechanism that enables them to come into contact
with their environment, assimilating it, acting on it, and thereby transforming it. From this …

In the development of didactics of mathematics as a professional field in Germany, subject-
related approaches play an important role. Their goal was to develop approaches to …

This study investigates the relationship between children's subitizing activity and their
construction of arithmetic units. In particular, the study hypothesizes a positive association …

Repeating patterning proficiency predicts students' later mathematical proficiency. A
comparative multi-case design enabled the present study to compare patterning success …

What number-related competences do grade one students need to ensure later success and
avoid later failure? We address this question by summarising recent work on the …

The aim of this study was to improve the 2nd-and 3rd-graders' conceptual subitizing skills by
using in-class activities, and to examine whether the practice affects the students' basic …