Although virtually all Inuit children in eastern Arctic Canada learn Inuktitut as their native language, there is a critical lack of tools to assess their level of language ability. This article investigates how mean length of utterance (MLU), a widely-used assessment measure in English and other languages, can be best applied in Inuktitut. The…

In the present study, a preparation of frog skin was presented, which can be used to demonstrate the basic concepts of blood flow regulation in a very clear and attractive way to high school and university students. In a freshly euthanized "Xenopus," a patch of abdominal skin was exposed from the internal side and viewed with a USB…

Most undergraduate physiology texts describe veins simply as reservoirs for blood and conduits for return of blood to the heart. This article describes a laboratory exercise that can be performed by students to demonstrate that veins are much more than reservoirs and conduits for blood flow: they possess a dynamic rhythmic contraction. In this…

The purpose of this study is to determine the validity of common assumptions about the rate at which school decline manifests. From a population of 981 elementary schools in the state of Virginia, the author uses three operational definitions of school decline to identify samples of declining schools: Absolute (n = 217), Relational (n = 510), and…

The aim of this study is to investigate the effects of solution methods and question prompts on generalization and justification of non-routine problem solving for Grade 9 students. The learning activities are based on the context of the frog jumping game. In addition, related computer tools were used to support generalization and justification of…

Policy implementation at school level is often recognised as transformative enactment. Positioning school leaders as gatekeepers in this enactment is limiting. This study of one Australian school explores the complex contextualised agency of school leaders showing that their role, far more than gatekeeping, can be enabling and transformative.…

This article explores uninvestigated issues in Cantonese and "Hoisan-wa" language maintenance from an ethnic Chinese diaspora point of view. Data come from a larger study looking at Frog Story narratives from 140 Cantonese-English bilingual children in California. Fourteen of these children were found to display uniquely…

Introducing students to the process of scientific inquiry is a major goal of high school and college labs. Environmental toxins are of great concern and public interest. Modifications of a vertebrate developmental toxicity assay using the frog Xenopus laevis can support student-initiated toxicology experiments that are relevant to humans. Teams of…

The introduction to the "Next Generation Science Standards" ("NGSS") calls for students to learn science within the context of practice because "practices alone are activities and content alone is memorization. It is through integration that science begins to make sense and allows students to apply the material" (NGSS…

Spatial processing of numbers has emerged as one of the basic properties of humans' mathematical thinking. However, how and when number-space relations develop is a highly contested issue. One dominant view has been that a link between numbers and left/right spatial directions is constructed based on directional experience associated with reading…

Science educators and school administrators are reexamining the educational value of animal dissection in the nation's schools and are focusing on simulation as an instructional alternative. One implication of the debate is that simulations can lead to equivalent learning to hands-on dissection. The second implication is whether dissection is…

This study examined the discourse skills of deaf and hard of hearing (DHH) children by comparing their oral and written narratives produced for the wordless picture book, "Frog, Where Are You?" (Mayer, 1969), with those of school-age-matched hearing peers. The written stories produced by 42 Italian 7- to 15-year-old children with…

We have realized that our Biology undergraduate students learn biological concepts as established truths without awareness of the body of experimental evidence supporting the emerging models as usually presented in handbooks and texts in general. Therefore, we have implemented a laboratory practice in our course of Physiology and Biophysics, aimed…

In two studies we investigated 2-year-old children's answers to predicate-focus questions depending on the preceding context. Children were presented with a successive series of short video clips showing transitive actions (e.g., frog washing duck) in which either the action (action-new) or the patient (patient-new) was the changing, and therefore…

During early childhood, children adopt a design-based conception of books with increasing consistency. It is not clear if or how young children spontaneously identify the myriad of commercially produced, book-related props, toys, and other materials as support for their early literacy activities. Guidelines for evaluating these supplementary…