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Objectworlds : a class of computer-based discovery learning environments
It is possible to discern a class of Computer-Based Discovery Learning Environments which centre on novel, concept rich,simulated objects and which include simple but general functions with which the objects may be manipulated. This thesis provides a history of this class of environments, which we call objectworlds, and we also give them a strict definition. We describe Gravitas, a new objectworld we have built, which allows learners to work with objects that behave like gravitating masses moving in a two dimensional space.Gravitas contains a powerful programmable interface to the objects, in the form of a set of Logo commands, and a functionally equivalent but easier to use graphical interface which is controlled by the mouse. We show that the combination of interfaces helps learners to explore the world of these objects more effectively.We contrast the educational experiences learners are afforded by objectworlds with those offered by two closely related kinds of Discovery Learning Environment: Simulations and Modelling Systems. We also describe a psychological framework which provides a useful way of thinking about the construction of computer simulated objects for discovery learning applications
1952-1953 Bulletin
Volume LXIII, Number 3
Scanned from the copy held in University Archives and Special Collections.https://ecommons.udayton.edu/bulletin/1054/thumbnail.jp
A cumulative index to the 1973 issues of Aeronautical engineering: A special bibliography
This publication is a cumulative index to the abstracts contained in NASA SP-7037 (28) through NASA SP-7037 (39) of Aeronautical Engineering: A Special Bibliography. NASA SP-7037 and its supplements have been compiled through the cooperative efforts of the American Institute of Aeronautics and Astronautics (AIAA) and the National Aeronautics and Space Administration (NASA). This cumulative index includes subject, personal author, corporate source, contract, and report number indexes
Food science sourcebook
2 v. : ill. ; 26 cm2nd edition.Rev. ed. of: Source book for food scientists. c1978"An AVI book."Pt. 1. Terms and descriptions -- pt. 2. Food composition,properties, and general data