Since slope is a fundamental topic that is embedded throughout the US secondary school
curriculum, this study examined standards documents for all 50 states to determine how they …

The learning and teaching of algebra has always been a fundamental and vibrant stream of
the research carried out within the PME community–from the 1st PME conference in 1977 to …

This article reports an investigation of 251 high school mathematics teachers' meanings for
slope, measurement, and rate of change. The data was collected with a validated written …

The aim of this study is to determine the effect of computer-supported collaborative learning
(CSCL) using GeoGebra software on 11th grade students' achievement in exponential and …

The paper is a reflective account of the design and implementation of mathematical tasks
that evoke uncertainty for the learner. Three types of uncertainty associated with …

We investigated covariational reasoning among 487 secondary mathematics teachers in the
United States and South Korea. We presented an animation showing values of two varying …

The aim of this study was to investigate the effect of using dynamic geometry software
(GeoGebra) on the eighth‐grade students' conceptual understanding and the retention of …

This paper reports the results of a research exploring the mathematical connections of pre-
university students while they solving tasks which involving rates of change. We assume …

Big ideas in the mathematics curriculum for older school students, especially those that are
hard to learn and hard to teach, are covered in this book. It will be a first port of call for …

Since its first publication, Teaching Secondary School Mathematics has established itself as
one of the most respected and popular texts for both pre-service and in-service teachers …