In this article, we investigated how a class engaged in whole-class discussions of modeling solutions, across two different types of modeling tasks: a Model Eliciting Activity (MEA) and a Three-Act Task. We analyzed whole-class discourse as small groups presented and responded to each other's solutions to a MEA and a Three-Act Task. We have also…

The later part of the nineteenth century through the early twentieth century has many monikers in U.S. history textbooks, such as the "Gilded Age," the "Progressive Era," and the "Second Industrial Age." What it is rarely called, but should be known as, is the "Nadir of Race Relations." One topic in this…

Equal representation as a social issue is about the participation of one social group, in a particular context, in proportion to the numbers in the group within the total population. The proportion of women in parliament, and of the participation rate of students of lower socioeconomic status in higher education, are examples. The aims of this…