Scaffolding middle school students' content knowledge and ill-structured problem solving in a problem-based hypermedia learning environment


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Bulu S. T. , Pedersen S.

ETR&D-EDUCATIONAL TECHNOLOGY RESEARCH AND DEVELOPMENT, cilt.58, sa.5, ss.507-529, 2010 (SSCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Konu: 5
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s11423-010-9150-9
  • Dergi Adı: ETR&D-EDUCATIONAL TECHNOLOGY RESEARCH AND DEVELOPMENT
  • Sayfa Sayıları: ss.507-529

Özet

This study investigated the effects of domain-general and domain-specific scaffolds with different levels of support, continuous and faded, on learning of scientific content and problem-solving. Students' scores on a multiple-choice pretest, posttest, and four recommendation forms were analyzed. Students' content knowledge in all conditions significantly increased from pretest to posttest. However, the continuous domain-specific condition outperformed the other conditions on the posttest. Although domain-general scaffolds were not as effective as domain-specific scaffolds on learning content and problem representation, they helped students develop solutions, make justifications, and monitor learning. Unlike domain-specific scaffolds, domain-general scaffolds helped students transfer problem-solving skills when they were faded. Several suggestions are discussed for making improvements in the design of scaffolds to facilitate ill-structured problem solving.