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The LEAP Authoring Tool: Supporting complex courseware authoring through reuse, rapid prototyping, a
An important goal of current work in computer-based learning environments is to develop systems that combine the richness and effectiveness of an individually crafted intelligent tutoring system (ITS) with the generality and flexibility of a computer-assisted instruction (CAI) authoring tool. Our effort to achieve this goal is demonstrated in the Learn, Explore and Practice (LEAPsm) ITS shell and its courseware development component, The LEAP Authoring Tool (LAT). The LAT was developed for use b
Author(s): Sparks Randall,Dooley Scott,Meiskey Lori,Blumentha

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Essential Science for Teachers: Life Science: Session 4. Plant Life Cycles
What is a plant? One distinguishing feature of members of the Plant Kingdom is their life cycle. In this session, flowering plants serve as examples for studying the plant life cycle by considering the roles of seeds, flowers, and fruits. A comparison to animal life cycles reveals some surprising similarities and intriguing differences.,Children's ideas about seed are discussed, with references to BSCS TRACKS. Children are about 7/8 years old. They soak lima beans and see the plant embryos. A
Author(s): Harvard-Smithsonian Center for Astrophysics

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Essential Science for Teachers: Life Science: Session 2. Classifying Living Things
How can we make sense of the living world? During this session, a systematic approach to biological classification is introduced as a starting point for understanding the nature of the remarkable diversity of life on Earth.,This segment deals with the "other" organisms that do not easily fall into the plant or animal category. 7 year olds talk about a third ring to the Venn diagram and that bacteria would be an "other".
Author(s): Harvard-Smithsonian Center for Astrophysics

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National Heart, Lung, and Blood Institutes' Diseases and Conditions Index
This site provides information about heart, lung, and blood diseases and sleep disorders. Learn how the heart works. Find out about aneurysms, angioplasty, electrocardiograms, heart attacks, high blood pressure, asthma, cystic fibrosis, sickle cell anemia, insomnia, narcolepsy, and more.
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Ask the Answer Worm!
A product of the National Resource Conservation Service and the US Department of Agriculture, the Ask the Answer Worm Web site gives teachers a great resource to teach young students about the importance of soil as a natural resource. S.K. Worm answers thirteen important questions related to soil conservation, such as "How does water stay in the soil?" and "Why do plants like soil?" Each concise answer is accompanied by a fun and colorful illustration of S.K. Worm commenting on the question at h
Author(s): Creator not set

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Cell Biology Improvement Drive
Wikiversity participants with an interest in Cell biology can participate in the "Cell biology improvement drive". This Learning Project is a service-oriented Wikiversity project devoted to improvement of Cell biology articles at Wikipedia and development of the Wikibooks textbook about Cell biology. Participants in the project can become involved in the construction of new Wikiversity pages that are concerned with Cell biology. This "Cell biology improvement drive" also includes improvement of
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Internet Scout Project
The Manassas, Va.-based Garden Writers Association (GWA) claims a membership of more than 1,800 professional communicators in the lawn and garden industry. Its website, in addition to providing information about the organization and the benefits of membership, including the association's annual symposium scheduled September 9-12, 2005, in Vancouver, also includes several features that will be of interest to the broader community of gardeners. Visitors may peruse an extensive listing of books aut
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Microscope Imaging Station
This site shows what blood is, what happens when the immune system goes awry, what are stem cells are, and more. See videos exploring cell structure and function, cell development and motility, plankton, plants, and protozoa. Learn how the sea urchin helps us understand genes, reproduction, and cancer.
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Essential Science for Teachers: Life Science: Session 3. Animal Life Cycles
One characteristic of all life forms is a life cycle—from reproduction in one generation to reproduction in the next. This session introduces life cycles by focusing on continuity of life in the Animal Kingdom. In addition to considering what aspects of life cycles can be observed directly, the underlying role of DNA as the hereditary material is explored.,Students are asked what existed before a bird becomes a bird? Students explain their ideas about eggs and birds. They present interesting a
Author(s): Harvard-Smithsonian Center for Astrophysics

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Détermination automatique des théorèmes-en-acte des élèves en algèbre. Le cas des équations e
Dans cet article, nous sommes intéressés à la détermination automatique de théorèmes-en-acte en algèbre. Ces théorèmes-en-acte ont été construits de façon abstraite, puis nous avons cherché à automatiser le mécanisme de leur diagnostic. Pour cela, nous avons utilisé le logiciel Aplusix comme support des productions des élèves qui permet d'enregistrer toutes les actions des élèves. Une base de règles correctes et erronées a été mise en place et un interpréteur de règles
Author(s): Chaachoua Hamid,Nicaud Jean-François,Bittar Maril

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Book Writing and Wall Writing from the course History of Information
This course explores the history of information and associated technologies, uncovering why we think of ours as 'the information age.' We will select moments in the evolution of production, recording, and storage from the earliest writing systems to the world of Short Message Service (SMS) and blogs. In every instance, we'll be concerned with both what and when and how and why, and we will keep returning to the question of technological determinism: how do technological developments affect socie
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Passive Building Design - student example 3 (Laura Graham)

Authors: 
Tom Sanya