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  1. Sacristán, A.I. ; Cortés-Zavala, J.C. ; Ruiz-Arias, P.M. (Ed.)
    The phenomenon of the sea level rise is a pressing environmental and social issue of the present age. Starting with the assumption that mathematics can be utilized to help students explore this phenomenon, we designed a simulation in NetLogo, in which students investigated the relationships between the quantities of temperature rise, height of future sea level, and total land area. In this paper, we present the analysis of a whole-class design experiment in a sixth-grade classroom and discuss how our design helped students to examine sea level rise as both an environmental and a social issue. 
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  2. This research study was designed to evaluate the extent and the ways in which sixth-grade students developed their reasoning about the greenhouse effect and covariation as a result of their engagement with an instructional module that seamlessly integrates environmental science, mathematics, and technology. Quantitative and qualitative data were obtained from a design experiment in two sixth-grade classrooms and were compared to the data from a control group of students in a third sixth-grade classroom. The results from the quantitative analysis indicated that students in the treatment group demonstrated a greater development than the control group. The findings from the qualitative analysis illustrated that students developed sophisticated forms of reasoning about the greenhouse effect and covariation through their engagement with dynamic simulations and careful task design that prompted students to explore the covariational relationships underlying the science of the greenhouse effect. We consider the design of this instructional module to be valuable for future efforts to develop integrated science, technology, engineering, and mathematics (STEM) modules. 
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