ments (Kali, Linn, and Roseman, 2008). Teachers, he said, could take those design principles and create a new online science curriculum unit to meet their specific needs. However, Clark reported, more often a teacher will use these design principles or the WISE authoring system to customize existing curriculum materials to meet her or his local needs.
Eisenkraft asked what specific characteristics of the 5E model would promote 21st century skills, and Bybee responded that the primary goal of the model has been to increase student mastery of subject matter, including science concepts. He said that he has learned that, in order to reach any instructional goal, it is important to focus on that specific goal. Therefore, in order to develop 21st century skills through the 5E model, these skills would have to be explicitly targeted for instruction.