Joseph Barbosa Beck

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We describe a methodology for enabling an intelligent teaching system to make high level strategy decisions on the basis of low level student modeling information. This framework is less costly to construct, and superior to hand coding teaching strategies as it is more responsive to the learner's needs. In order to accomplish this, reinforcement learning is(More)
Ornithine decarboxylase (ODC) is considered the rate-limiting enzyme in polyamine biosynthesis, and an increase in putrescine after central nervous system (CNS) injury appears to be involved in neuronal death. Cerebral ischemia and reperfusion trigger an active series of metabolic events, which eventually lead to neuronal death. In the present study, ODC(More)
Traditional practices of spacing and expanding retrieval practices have typically fixed their spacing intervals to one or few predefined schedules [5, 7]. Few have explored the advantages of using personalized expanding intervals and scheduling systems to adapt to the knowledge levels and learning patterns of individual students. In this work, we are(More)
In this project, a microworld was created in a Science ASSISTment, a computer based learning environment that assists students with inquiry as it collects data to assess their performance. The microworld assessed middle school students' knowledge of ecology and inquiry skills while addressing common misconceptions in food webs. The students' prior knowledge(More)
New demands associated with living in a highly-technological and globally-FRPSHWLWLYHZRUOGUHTXLUHWRGD\ ¶VVWXGHQWVWRGHYHORSDYHU\GLIIHUHQWVHW of competencies than previous generations of students needed. The general goal of education is to prepare young people to live independent and productive lives. Unfortunately, our current educational system is not(More)
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