What type of task can a teacher create in Classroom to organize students' outdoor Math project submissions?

The choice of creating an Assignment in Google Classroom is ideal for organizing students' outdoor Math project submissions. An Assignment allows teachers to provide specific instructions, set due dates, attach relevant resources, and manage student submissions effectively. By using this feature, teachers can also evaluate students' work and provide feedback directly within the platform, streamlining the whole process from submission to grading.

The other options, while related to classroom tasks, do not offer the same level of functionality for project submissions. A "Project" might imply a larger scope of work but lacks the defined structure of instructional and grading capabilities found in an Assignment. A "Task" and "Activity" are more generic terms that do not specify the comprehensive features available in Assignments. This makes Assignments the most effective choice for organizing and managing student submissions for specific projects like an outdoor Math project.