The goal of this clinical trial is to learn if 3D-printed heart models and augmented reality can be useful modalities to teach medical students about congenital heart disease. The main questions it aims to answer are:

1. Does using 3D-printed heart models improve learners' understanding of congenital heart disease when compared to traditional slide-based teaching methods?
2. Does using augmented reality heart models improve learners' understanding of congenital heart disease when compared to traditional slide-based teaching methods?
3. How can these modalities best be integrated into standard medical school curricula?

Participants will:

1. Take a pre-test consisting of questions regarding anatomy and physiology of the normal heart as well as two congenital heart diseases.
2. Be randomized into 3 groups that receive a teaching session using either slide-based lecture, 3D-printed models, or augmented reality.
3. Take a post-test of the same questions from the pre-test.
4. Take a delayed post-test of the same questions with additional subjective questions about their experience with their assigned modality.

Inclusion Criteria:

• First year medical student

Exclusion Criteria:

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