Quantifying exponential growth: Three conceptual shifts in coordinating multiplicative and additive growth

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Covariational reasoning among U.S. and South Korean secondary mathematics teachers (2017, background): “Frank, (2016a, 2017, in press) is investigating students’ difficulties in this area with precalculus and calculus students; Ellis et al. (2016, 2012, 2015) and Fonger, Ellis, and Dogan (2016) are investigating the same with middle school students.”
Teacher moves for supporting student reasoning (2018, methodology): “The development of the TMSSR framework occurred as part of a larger study investigating the influence of quantitative reasoning on students’ understanding of function (Ellis et al. 2016; Ellis et al. 2015; Reiten et al. 2015).”
An Exponential Growth Learning Trajectory: Students’ Emerging Understanding of Exponential Growth Through Covariation (2016, unknown): “The construction of learning trajectories is a critical task facing mathematics education researchers (Steffe, 2004), particularly for challenging or poorly understood conceptual areas. By offering an empirically based learning trajectory articulating the development of students’ initial understandi”