This study investigated income group differences in kindergartners' and first graders' (N = 161) arithmetic by examining the link between accuracy and strategy use on simple and complex addition problems. Low-income children were substantially less accurate than high-income children, in terms of both percentage of correctly solved problems and the…

Research on problem solving typically does not address tasks that involve following detailed and/or illustrated step-by-step instructions. Such tasks are not seen as cognitively challenging problems to be solved. In this paper, we challenge this assumption by analyzing verbal protocols collected during an Origami folding task. Participants…

Background: Institutions of higher education, specifically schools of education, should play a pivotal role in supporting educators' development of data literacy for teaching. While novice teachers are often prepared to use test-based assessment data, they learn these experiences in isolated courses that do not connect to instruction or school…

Introduces the Mystery Festival at the Shrewsbury Middle School in Massachusetts. Claims that this program will enable the children to collect and analyze data, carry out necessary tests, and develop a scientific approach to solving crimes. Describes the process of setting up this festival and recommendations for adapting the program to suit…

CURRENT MODELS OF DECISION-MAKING AND RELATED RESEARCH IN CONNECTION WITH CERTAIN DEVELOPMENTAL TASKS OF ADOLESCENTS WERE REVIEWED. THE DECISION ELEMENTS RECEIVING THEORETICAL ATTENTION WERE (1) DECISION-PROCESS PHASES, (2) DECISION-OUTCOME PROBABILITIES AND STRUCTURAL COMPONENTS, (3) DECISION-PLAN DIMENSIONS, (4) DECISION STRATEGIES, AND (5)…