Young children can struggle to learn difficult disciplinary content and important skills for practicing science. Problem-based learning (PBL) may be useful for addressing such difficulties, yet evidence to support its usefulness in elementary school-aged children is limited. We considered the role of a PBL unit in improving students' genetics…

This article describes a self-guided, story-like game with creative drawing for grades 3-5 that teaches the evolution concepts of adaptation, natural selection, ecosystem dynamics, inheritance, and mutation following the "Next Generation Science Standards" ("NGSS"). Drawing reinforces concepts through emphasis on students'…

This collective case study uses a design-based research approach to investigate the role of 3D pens, an emerging technology, in fostering creativity during a lesson on biomes, genetics, and heredity with learners in six classes of 4th and 5th grade students from rural Michigan and Idaho. Data analyzed included video of the classroom lessons,…

Evolution by natural selection is key to understanding life and of considerable practical importance in public health, medicine, biotechnology, and agriculture. "The Next Generation Science Standards" (NGSS) include natural selection among several evolutionary concepts that all third-graders should know. This article explores a novel…

According to the Multiple Deficit Model, comorbidity results when the genetic and environmental risk factors that increase the liability for a disorder are domain-general. In order to explore the role of domain-general etiological risk factors in the co-occurrence of learning-related difficulties, the current meta-analysis compiled 38 studies of…

Previous literature has indicated an important association between reading comprehension and both attention-deficit/hyperactivity disorder (ADHD) and homework habits. This investigation sought to extend previous knowledge by providing information about how ADHD and homework behavior (i.e., completing homework regularly) may jointly influence…

Research on the development of reading skills through the primary school years has pointed to the importance of individual differences in initial ability as well as the growth of those skills. Additionally, it has been theorized that reading skills develop incrementally. The present study examined the genetic and environmental influences on 2…