Which curriculum model is designed to ensure differentiated curriculum through a theme-based approach?

The choice of a model that emphasizes differentiated curriculum through a theme-based approach is best represented by VanTassel-Baska's Integrated Curriculum Model. This model focuses on integrating content from different subject areas around central themes or topics, allowing for a rich exploration of concepts while catering to diverse learning needs and styles.

VanTassel-Baska's model advocates for the inclusion of higher-level thinking skills and encourages the development of talents and interests through thematic units. By organizing learning around themes, students can draw connections between subjects and apply their knowledge in a more meaningful context, which is essential for fostering engagement and deeper understanding.

The other models mentioned do not focus specifically on a theme-based approach as a primary mechanism for differentiation, making them less suitable choices for this particular question. This thematic integration is critical because it allows for a cohesive learning experience that can be adjusted based on students' abilities and interests, thereby ensuring that all learners are both challenged and supported in their learning journey.