Final answer:
The teacher is promoting student choice by providing different options for students to showcase their mastery, allowing them to use their preferred methods of expression.
Step-by-step explanation:
The teacher is promoting student choice by allowing them to demonstrate their mastery of skills through various means such as creating a brochure, recording a podcast, writing an essay, or performing an act. This method of assessment acknowledges that different students may excel with different forms of expression and helps them to engage more deeply with the material. By offering a range of options, the teacher provides opportunities for learners to tailor their projects to their interests and strengths, which can enhance both learning outcomes and student engagement.