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Lehigh's College of Education meets this requirement by having all teacher education students compose a digital portfolio, using the Mahara system provided by the university.
Your advisor will oversee your digital portfolio process, making sure that you have all required materials posted. However, your course instructors are also supposed to be part of the process: For all courses that require the generation of an 'artifact' demonstrating part of your PDE-specified competencies, you must post that artifact to your portfolio. (For example, TLT 409, Classroom Environment and Management, requires a "Classroom management plan" as its artifact. This artifact is designed to demonstrate your competency at....) Your course instructor is supposed to withhold your semester grade until your final, corrected version of your artifact is posted to your portfolio as a pdf.