In 1951, when Maria Montessori described the pattern of human development as the Constructive Rhythm of Life, marking each of four chapters or planes of development with an inverted triangle, she colored the first and third planes red to represent their intensity (Grazzini, 1996). These two red triangles are referred to as creative periods and…

Research and data on youth and delinquency is critical for identifying opportunities and developing strategies to support positive development through prevention and intervention. Responses to youth misbehavior by youth-serving systems -- including education, child welfare, behavioral health, and justice systems -- can play an important role in…

This article builds upon a proiminent definition of construct validity that focuses on variation in attributes causing variation in measurement outcomes. This article synthesizes the defintion and uses Rasch measurement modeling to explicate a modified conceptualization of construct validity for assessments of developmental attributes. If…

Like many Montessori educators, the author was immediately drawn to the materials Maria Montessori designed for children in the conscious absorbent mind. They are simple, beautiful, and attractive to children. To many, including some parents, these materials are the essence of Montessori. However, Maria Montessori herself thought of her Method as…

This article describes how intra- and interdisciplinary learning experiences can activate the interests and capabilities among children in their early years. A developmental sequence delineates a series of stage-by-stage experiences describing the skill and content to be introduced and mastered in the teaching and learning process, which include…

Montessori communities are known for beautiful mealtimes. Even at the Infant & Toddler level, mealtime is a key moment for children to exercise independence and healthy social interactions. Meals and snacks with the youngest Montessori students are an essential component of the work cycle and daily routine. The Practical Life curriculum allows…

Life skills are personal resources that can be trained and applied in a specific situation and transferred to other contexts. The growing body of research has shown that intervention programs produce positive results in learning and transferring life skills. Nonetheless, there is a need to clarify the efficacy of life skills training, namely the…

Four longitudinal models are used to present a short review of research into adolescent psychosocial development. This review reveals adolescent development to proceed in a regular manner. This process of regular development suggests that it might be possible to uncover rules of intra-individual development. The aim of this paper is to propose a…

Incarceration in the United States affects not only the individuals incarcerated, but also the whole family system, including children. 1.5 million children younger than 18 have had parents incarcerated at some point in their life (U.S. Census Bureau, 2021), and children have been called the hidden victims of the mass incarceration that is…

Undocumented immigrants arriving in the United States as minors navigate tremendous constraints as they transition into adolescence and adulthood. Exclusionary immigration laws profoundly shape and complicate the attainment of important milestones and the decisions undocumented minors make about their adult futures. A significant body of research,…

What do cows drink? The correct answer is water, but many are tempted to say milk. The disposition to override an intuitive response (milk) with a more analytic response (water) is known as "cognitive reflection." Tests of cognitive reflection predict a wide range of skills and abilities in adults. In this article, we discuss the…

This paper focuses on two elements of the Passover Seder ritual and their connection to Piagetian education theory. After outlining Piaget's theory of genetic epistemology and its implications for education theory, it focuses on Sigel's distancing theory, which touts question asking as a tool for presenting information to students. This paper…

I grew up immersed in the sounds of nature. However, throughout childhood, the ambient soundscape that once thrilled me was usurped by human-made sounds. I conducted an autoethnographic inquiry to seek the ways that my early and middle childhood music education diverted my attention from local soundscapes to a near-exclusive focus on…

The complexity of understanding unit fractions is often underappreciated in instruction. We introduce a continuum of children's understanding of unit fractions to explore this complexity and to help teachers make sense of children's strategies and recognize milestones in the development of unit-fraction understanding. Suggestions for developing…

Modern developmental science is informed by several shared principles and adopts a lifespan approach that goes from infancy to senescence. Increasingly, disciplines outside psychology are adopting research frameworks (e.g., fetal origins, developmental origins of health and disease, first 1000 days) that prioritize prenatal experience as a driver…