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Table 4 Stages and activities of the DIGIER model

From: Development of an engineering design process-based teaching and learning model for scientifically gifted students at the Science Education Institute for the Gifted in South Korea

StageActivity
Defining the problem• Recognizing the problematic situation
• Recognizing the need for problem solving
• Specific clarification of the problem to be solved
Ingathering information• Gathering information related to the problem by taking advantage of diverse sources
• Organizing information by checking the relations between problem and information
Generating the solution• Generating various solutions
• Refining their solutions
• Making a presentation and evaluating by the group
• Generating a solution by the group based on the evaluation results
• Elaborating the solution by the group
Implementing the best solution• Making a prototype based on the group’s solution
• Arranging the prototype’s characteristics
Evaluating the solution and reflecting• Presenting and evaluating of the prototype’s characteristics by the group
• Finding improvement measures for the prototype’s drawbacks
• Generating a new solution