We report on the programming learning experiences of urban youth ages 8-18 at a Computer Clubhouse located in South Central Los Angeles. Our analyses of the 536 Scratch projects, collected during a two-year period, documents the learning of key programming concepts in the absence of instructional interventions or experienced mentors. We discuss the motivations of urban youth who choose to progr...

A factorial experiment begun in 1980 included ‘Hamlin’ and ‘Valencia’ sweet-orange scions [Citrus sinensis (L.) Osb.], and Milam lemon (C. jambhiri Lush) and Rusk citrange [C. sinensis x Poncirus trifoliata (L.) Raf.] rootstocks, tree topping heights of 3.7 and 5.5 m, between-row spacings of 4.5 and 6.0 m, and in-row spacings of 2.5 and 4.5 m. The spacing combinations provided tree densities of...

There has long been debate on the extent to which the structure of government in metropolitan areas helps or hinders income growth. Polycentrists contend that numerous local governments lead to competition that streamlines government, produces services at least cost, and leads to higher incomes. Centrists argue that large, multiple service governments have scale economies leading to more effici...

Lessons learned from Oakes’s school reform framework (1992) can help us understand similar issues in non-school settings and how to think about equity minded reform in these settings. In this paper, we will apply Oakes’s technical, normative, and political dimensions in the case of the Computer Clubhouse, a Community Technology Center, to illustrate how the barriers to change in afterschool set...

THE opening meeting of the Society was held on the 3rd November, when the retiring president, Professor W. W. D. Thomson, introduced Dr. John McCloy to the chair. After thanking Professor Thomson and the fellows and members of the Society for conferring the honour of presidency upon him, Dr. McCloy then referred to the losses which the Society had sustained during the previous year from the dea...

This paper focuses on the development of a design culture in a Computer Clubhouse, a type of community technology center known for its emphasis on design and creative production. Drawing from theories of situated learning and cultural historical activity, we used a mixed methods approach to document, describe, and analyze local portfoliobuilding practices and the role of mediation that best sup...

Book Published by Microanalysis Society http://www.microbeamanalysis.org/ ISBN# 978-0-7334-3069-5 Thank You to the Workshop Sponsors! Time Tuesday Program Chair Marion Stevens-Kalceff 8:15-8:30 Introduction & Welcome 8:30-9:15 Jens Gotze Application of cathodoluminescence microscopy and spectroscopy in geosciences 9:15-9:45 David Stowe Contrast mechanisms in cathodoluminescence microscopy 9:45-...

We describe how we constructed an automatic scoring function for machine translation quality; this function makes use of arbitrarily many pieces of natural language processing software that has been designed to process English language text. By machine-learning values of functions available inside the software and by constructing functions that yield values based upon the software output, we ar...

One of the fundamental advantages behind Adaptive Comparative Judging (ACJ) is that it is easier and more accurate to comparison judge a series of products, and to develop a rank order of achievement, than it is to score products using a more subjective method or rubric approach. Research in the field of comparative judging has shown very high levels of reliability and close correlations betwee...