As a promising tool for improving math education and closing the achievement gap, the use of educational technology has dramatically expanded in K-12 education in recent years, accelerated by the COVID-19 pandemic. ASSISTments was one of the few digital learning programs recommended for use in response to the COVID-19 pandemic (Sahni et al.,…

Math performance continues to be an important focus for improvement. Many districts adopted educational technology programs to support student learning and teacher instruction. The ASSISTments program provides feedback to students as they solve homework problems and automatically prepares reports for teachers about student performance on daily…

This study examined the within- and between-day variability of time-segmented sedentary behavior (SB), light physical activity (LPA), and moderate-to-vigorous physical activity (MVPA) in adolescents. The sample comprised 154 adolescents (11-16 years old) from two public schools in Florianópolis, Brazil. The proportion of time spent in SB, LPA, and…

The Knowledge Is Power Program (KIPP) is the nation's largest network of public charter schools. KIPP began as a network of charter middle schools designed to serve underserved communities, with the goal of closing achievement gaps and preparing students to succeed in college. KIPP has since expanded its model to include elementary and high…

This exploratory study critically examines the relation between the commonly applied social contextual variables and the assimilation of the concepts of historical time. Using new data, from a classroom-based research study of 120 nine-to ten-year-olds, it contends that extant researchers' application and investigation of the social context of…