Final answer:
The student is demonstrating a growth mindset by breaking down large projects into manageable steps, thereby facilitating success and overcoming challenges.
Step-by-step explanation:
The student creating a Next-Actions list to manage large, multi-step projects is demonstrating a growth mindset. This term refers to the belief that one's abilities can be developed through dedication and hard work. By breaking down tasks into smaller, more manageable steps, the student is adopting a proactive approach to problem-solving. This method helps to alleviate the feeling of being overwhelmed and supports successful project completion. It is a strategy that fosters resilience, persistence, and the ability to tackle challenges constructively, all of which are integral aspects of a growth mindset.