"As collaboration and project-based learning become preeminent ways of teaching and learning, many teachers struggle with how to evaluate these types of lessons. Traditional methods of evaluation, which have many flaws on their own, are not well-suited for interdisciplinary, multi-modal learning. Teachers need ideas for encouraging students, providing meaningful feedback, and setting students up for success.
Project-based learning (PBL), also known as challenge-based learning, begins with the assumption that there may be more than one right answer. Finding creative solutions to a problem or a driving question is what makes the learning meaningful and lasting, and also difficult to evaluate from a traditional standpoint. When projects are interdisciplinary, it becomes even more of a challenge for teachers to critique subjects that may be unfamiliar."