SIGCSE 2000: Austin Buck, Duane and Stucki, David J., Design Early Considered Harmful: Graduated Exposure to Complexity and Structure Based on Levels of Cognitive Development, Proceedings ACM SIGCSE Symposium 2000, Austin, Texas. Portable Document Format (pdf) 235 Kb PostScript Format (ps) 574 Kb Quadratic And Factors Example Introduction to Programming with Java: Web Tutorials

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SIGCSE 2001: Charlotte Buck, Duane and Stucki, David J., JKarelRobot: A Case Study in Supporting Levels of Cognitive Development in the Computer Science Curriculum, Proceedings ACM SIGCSE Symposium 2001, Charlotte, NC. Portable Document Format (pdf) 190 Kb JKarelRobot Materials