A theory of instruction for introductory programming skills

ABSTRACT

Background and Context: Current introductory instruction fails to identify, structure, and sequence the many skills involved in programming.

Objective: We proposed a theory which identifies four distinct skills that novices learn incrementally. These skills are tracing, writing syntax, comprehending templates (reusable abstractions of programming knowledge), and writing code with templates. We theorized that explicit instruction of these skills decreases cognitive demand.

Method: We conducted an exploratory mixed-methods study and compared students’ exercise completion rates, error rates, ability to explain code, and engagement when learning to program. We compared material that reflects this theory to more traditional material that does not distinguish between skills.

Findings: Teaching skills incrementally resulted in improved completion rate on practice exercises, and decreased error rate and improved understanding of the post-test.

Implications: By structuring programming skills such that they can be taught explicitly and incrementally, we can inform instructional design and improve future research on understanding how novice programmers develop understanding.     

Developing Preservice Teachers’ Expertise in Equitable Assessment for English Learners

This study illustrated a pathway of growth that a preservice teacher might traverse when learning to use and develop equitable assessments (EA). The study is rare in that it looks at the development of preservice teachers’ understanding and ability to design EA. I examined the understanding and implementation of EA of 23 secondary preservice teachers within two classes. The methods classes focused on the academic content area of science. Participants’ journals, teaching philosophies, and inquiry-based science units served as data sources. Participants progressed from a simple view of EA as “fairness” to a more sophisticated view of EA, including: ways to increase fairness, the importance of challenging students, and using assessments for learning. Results also showed changes in preservice teachers’ views of learners and the purpose of assessment. While understanding developed robustly, teachers’ assessment plans in their units were not as strong. Teacher education programs need to place more emphasis on developing critical understanding of EA practices to meet the needs of diverse learners.     

Creating a distinctive business career outcome programme

This article describes how a small private business school, accredited by the Association to Advance Collegiate Schools of Business, reengineered its career services programme to become a premier programme in the United States. Drawing on theory of involvement, the research gives business schools a strategy to improve business career placement through capital support, student engagement, corporate engagement, alumni engagement, faculty engagement and continuous improvement initiatives. Further, two major outcome categories (i.e. supportive outcomes and end outcomes) are identified and various measures are discussed. Supportive outcomes indicate growth in the number of on-campus business recruiting career events, high internship evaluations by internship supervisors and significant increase in students’ satisfaction with career services. End outcomes provide strong evidence for placement rate success with a 98% career placement rate for the past four years, significant increase on mean starting salaries of graduates across the years following the implementation of the strategic changes, improved quality of positions attained by graduates, and professional success of alumni in their positions. The impact of strategic changes on school ranking, enrolment and donor support are also discussed. The research proposes a model of student career success and identifies various elements influencing the success of such programmes.     

Do We Fear Ageing? A Multidimensional Approach to Ageing Anxiety

Ageing anxiety is the expression of peoples' fear of ageing (Lynch, 2000 Lynch, S. M. (2000). Measurement and prediction of aging anxiety. Research on Aging, 22(5), 533.[Crossref], [Web of Science ®] , [Google Scholar]). Despite greater longevity in the population, there is a lack of research into this aspect of life (Lasher &; Faulkender, 1993 Lasher, K. P., &; Faulkender, P. J. (1993). Measurement of aging anxiety: Development of the Anxiety about Aging Scale. The International Journal of Aging &; Human Development, 37(4), 247–259.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). This research explored fears of ageing across four dimensions: Fear of Old People, Physical Appearance, Psychological Concerns, and Fear of Losses. Three hundred and forty eight participants aged 18–88 participated in an online survey. Findings were: (a) men and women have different fears of ageing; (b) greater quality contact is related to less ageing anxiety; (c) poor health is related to greater ageing anxiety, (d) ageism, defined by Nelson (2005 Nelson, T. D. (2005). Ageism: Prejudice against our feared future self. Journal of Social Issues, 61(2), 207–221.[Crossref], [Web of Science ®] , [Google Scholar]) as prejudice toward ageing is positively correlated with ageing anxiety. The implications of these findings are that better quality contact and more positive attitudes toward ageing are associated with less ageing anxiety. As such, possible key target areas in developing appropriate interventions are provided, with hope to prepare adults of all ages for the inevitable—life is a terminal illness, so enjoy while you can.     

车轮下的丝绸之路

青春,在一番又一番冒险的经历中成长。看看本文中的年轻人,如何以他的车轮品味不同的文化韵味。1蒙古包、牦牛皮一天清早,我在路边休息了一宿之后,醒来发现我的帐篷旁站着一个男孩子,透过遮帘窥视着我。我因身体疼痛、脱水而昏倒了。几个小时过后,我又醒过来,再一次发现他仍在注视着我,手里拿一瓶酸奶。在狂风中他帮我收起帐篷,把我带到他的住地。     

Developmental issues in cognitive mapping: the selection and utilization of environmental landmarks

2 studies were conducted to investigate developmental differences in the ability to select and use environmental landmarks for cognitively organizing distance information from a walk. In experiment 1, second-grade, fifth-grade, and college subjects viewed a simulated walk and selected scenes that were high in potential landmark value. In experiment 2, children from the same grade levels first viewed the walk and then ranked distances among either the test scenes most frequently selected by their peers or those selected most frequently by adults. Results indicated that (a) adults and children may not spontaneously select the same features as real-world landmarks; (b) children are less capable than adults in judging the value of potential landmarks as distance cues; and (c) the ability to use environmental landmarks as cues for distance information developmentally precedes the ability to assess this potential information value.