1) The document discusses different curriculum design models including horizontal articulation, vertical articulation, subject-centered design, problem-centered design, and learner-centered design.
2) The student prefers the learner-centered design model because it places the learner at the center of the educational process.
3) In their portfolio, the student illustrates three curriculum design models, focusing on the learner-centered model and highlighting how it accounts for the needs, concerns, and abilities of students.