Kids Don't Like Wearing the Same Jeans as their Mums and Dads: so whose ‘life’ should be in significant life experiences research?

In this article I respond to the special issue of Environmental Education Research (EER) by problematising significant life experiences research from the perspective of research and commentaries on intergenerational differences, environment‐related research with youth, and the silences in significant life experiences (SLE) research on gender, race and class. I argue that the youth of today are very different from older generations, so the achievement of the goals of environmental education through the extension of significant life experiences for older generations to the youth of today is a questionable activity. If our goal is the achievement of environmentally literate youth through environmental education, and, if we are going to use significant life experience research at all, then we need to be investigating the experiences which have been significant to youth at the end of the 20th century, not the experiences of those who were youths decades ago.     

RETIRED EDUCATORS AS ADVOCATES: PROMOTING K-12 EDUCATION ABOUT AGING

Retired educators and other older adults can be influential advocates for K-12 education about aging, by promoting balanced and accurate education related to aging across grade levels and core disciplines. This article presents the processes, outcomes, and evaluation of a pilot project involving retired educators in Colorado and Montana. The experiences from this pilot project can help guide future efforts of retired older adults to increase teacher awareness of the need for K-12 education about aging.     

Order of operations: On convention and met-before acronyms

In our exploration of the order of operations we focus on the following claim: “In the conventional order of operations, division should be performed before multiplication.” This initially surprising claim is based on the acronym BEDMAS, a popular mnemonic used in Canada to assist students in remembering the order of operations. The claim was voiced by a teacher and then presented for consideration to a class of prospective elementary school teachers. We investigate the participants’ understanding of the order of operations, focusing on the operations of multiplication and division. We report on participants’ ways of resolving a cognitive conflict faced as a result of relying on memorized mnemonics.     

The seductive details effect in technology‐delivered instruction

Seductive details are highly interesting information tangential to course objectives. The inclusion of seductive details generally harms performance on recall tests, but few studies have used multimedia training or investigated effects on performance on recognition tests or transfer tasks. We conducted two studies using computer‐based training, instructing college students to use either Excel or Word mail merge. Contrary to most prior results, we found no negative effect for seductive details on recognition tests, and we found a facilitative effect on transfer performance. We discuss implications for theories of learning and transfer, and practical implications for instructional design and delivery.     

An accurate VO2max nonexercise regression model for 18-65-year-old adults

The purpose of this study was to develop a regression equation to predict maximal oxygen uptake (VO2max) based on nonexercise (N-EX) data. All participants (N = 100), ages 18-65 years, successfully completed a maximal graded exercise test (GXT) to assess VO2max (M = 39.96 mL x kg(-1) x min(-1), SD = 9.54). The N-EX data collected just before the maximal GXT included the participant's age; gender; body mass index (BMI); perceived functional ability (PFA) to walk, jog, or run given distances; and current physical activity (PA-R) level. Multiple linear regression generated the following N-EX prediction equation (R = .93, SEE = 3.45 mL x kg(-1) x min(-1), % SEE = 8.62): VO2max (mL x kg(-1) x min(-1)) = 48.0730 + (6.1779 x gender; women = 0, men = 1) - (0. 2463 x age) - (0.6186 x BMI) + (0.7115 x PFA) + (0.6709 x PA-R). Cross validation using PRESS (predicted residual sum of squares) statistics revealed minimal shrinkage (R(p) = .91 and SEE(p) = 3.63 mL x kg(-1) x min(-1)); thus, this model should yield acceptable accuracy when applied to an independent sample of adults (ages 18-65 years) with a similar cardiorespiratory fitness level. Based on standardized beta-weights, the PFA variable (0.41) was the most effective at predicting VO2max followed by age (-0.34), gender (0.33), BMI (-0.27), and PA-R (0.16). This study provides a N-EX regression model that yields relatively accurate results and is a convenient way to predict VO2max in adult men and women.