The benefit of combining teacher-direction with contrasted presentation of algebra principles

European Journal of Psychology of Education - Teacher-directed and self-directed learning have been compared across various contexts. Depending on the settings and the presentation of material,...     

Evidence-based health promotion in nursing homes: A pilot intervention to improve oral health

ABSTRACT

Nursing home residents over the age of 65 years are at high risk for poor oral health and related complications such as pneumonia and adverse diabetes outcomes. A preliminary study found that Massachusetts’ nursing homes generally lack the training and resources needed to provide adequate oral health care to residents. In this study, an intervention targeting Certified Nurses’ Aides (CNAs) was developed and tested. We hypothesized that following the training, CNAs would have increased knowledge and self-efficacy toward providing oral health care to the residents in their charge.

This pilot study used a one-group pretest-posttest design to test the effectiveness of a psycho-educational training intervention. Utilizing the constructs of knowledge and self-efficacy from the Theory of Planned Behavior and the Social Cognitive Theory, we framed the content of a training intervention and administered a 21-item instrument. The survey was distributed to the CNA staff of a single midsize nursing home immediately prior to and after the intervention. The 1-hour training intervention was empirically supported by formative data and delivered by dental faculty researchers.

Findings indicate increases in two areas of oral health knowledge: toothbrush position and frequency of brushing. Self-efficacy, however, did not significantly change. Although the results marginally supported our hypothesis, this pilot study demonstrates the feasibility of delivering interventions to CNAs who have direct responsibility for promoting the oral health of long-term care facility residents.     

The Relative Merits of Explicit and Implicit Learning of Contrasted Algebra Principles

Knowledge representations that result from practicing problem solving can be expected to differ from knowledge representations that emerge from explicit verbalizing of principles and rules. We examined the degree to which the two types of learning improve problem-solving knowledge and verbal explanation knowledge in classroom instruction. We presented algebraic addition and multiplication problems to 153 sixth graders randomly assigned to two conditions. Students in the explicit learning condition had to verbally compare contrasted algebra problems. Students in the implicit learning condition had to generate and solve new problems. On three follow-up tests over 10 weeks, students in the explicit learning condition exhibited better problem-solving knowledge than students in the implicit learning condition, as well as some advantages in verbal concept knowledge. Implicit learning showed some advantages on not directly taught but incidentally learned aspects. Overall, this outcome favors the explicit learning of concepts. Explicit comparison fostered student performance on non-verbal and verbal measures, indicating that verbalization facilitates effective comparison.