Given its important role in mathematics as well as its role as a gatekeeper to future educational and employment opportunities, algebra has become a focal point of both reform and research efforts in mathematics education. Understanding and using algebra is dependent on understanding a number of fundamental concepts, one of which is the concept of…

Using the US national sample from the 1995 Third International Mathematics and Science Study (TIMSS), this study examined students' competence levels in understanding the matter concept at grades 3, 4, 7, 8 and high school graduation, and compared them to the expectations in the US national science education standards. It was found that…

T-algebra is a project for creating an interactive learning environment for expression manipulation tasks of elementary algebra. Our main didactical principle has been that all the necessary decisions and calculations at each solution step should be made by the student, and the program should be able to understand the mistakes. This paper…

The purpose of this study was to ascertain the extent to which students in a rural Arkansas school district felt that bullying existed in their school. One hundred seventh grade students and 150 eighth grade students in a middle school were surveyed by a Likert questionnaire of ten items. Measures were taken to insure that students of all…

Relations between adolescents' reports of parental management of peer relationships (consulting, mediating, and autonomy granting in regard to peer relationships) and positive friendship quality, friendship conflict, delinquent activity, and drug use were examined in an ethnically diverse sample of 322 7th and 8th graders. Regression analyses…

Today, with the requirements of NCLB and state standards, schools are locked into a culture that seems to assume one size fits all. Teachers' focus is on preparing students to pass tests rather than on developing thoughtful curriculum. In this article, the authors discuss how teachers can move away from the constraints of disciplines and topics…

Burgeoning research on the adolescent (e.g., middle-school) years suggests that this is a particularly vulnerable period for the development of maladaptive eating patterns. Prior research has established a link between perceptions of maternal parenting practices and adolescent onset of problematic eating behaviors. The authors hypothesized that…

This paper considers the main characteristics of contents' connections between technical education and physics curricula, in the sixth, seventh and eighth grade of the Serbian primary school. The undertaken logical and didactic analyses of interconnectedness between contents structure of the two school subjects are based upon comparisons which…

In this article, a heterogeneous latent growth curve model for modeling heterogeneity of growth rates is proposed. The suggested model is an extension of a conventional growth curve model and a complementary tool to mixed growth modeling. It allows the modeling of heterogeneity of growth rates as a continuous function of latent initial status and…

Research finds that the availability of specific coping resources can alleviate the more harmful effects of stress among adolescents. Although studies have investigated the relationship between coping resources and various outcomes among general samples of youth, no research has focused on adolescents who report high personal standards in…

The study presents the frequencies of students' conceptions of growth and cell division before and after one hour of instruction. The investigation supplements qualitative results by directing attention to those conceptions which might occur most frequently to students: teachers can then concentrate their preparation on practical requirements. A…

To examine cumulative impact of anti-smoking messages, 300+ sixth, seventh, and eighth graders at three southern, private schools completed the Youth Tobacco Survey during both fall and spring, 2001-2002. One school had tobacco lessons plus health-promotion teams, the other tobacco lessons, and the third classes as usual. In attitudes and…

This study examined reciprocal associations among adolescents' negative feedback-seeking, depressive symptoms, perceptions of friendship quality, and peer-reported social preference over an 11-month period. A total of 478 adolescents in grades 6-8 completed measures of negative feedback-seeking, depressive symptoms, friendship quality,…

As part of compliance with with the federal No Child Left Behind Act, this document presents the State Report Card of Arizona for 2009-2010. The report card provides tables relating to percentage of students who passed AIMS in Arizona by subject and grade. The tables shown in this document include: (1) Mathematics Grade 3; (2) Reading Grade 3; (3)…

There are two purposes in this study. One is to compare how 7th and 8th graders reason on linear and quadratic geometric number patterns when they have not learned this kind of tasks in school. The other is to explore the hierarchical relations among the four components of reasoning on geometric number patterns: understanding, generalizing,…