Features of mathematical activities in interdisciplinary, project-based learning

Project-based learning in mathematics education leads to mathematical activities that are uncommon in regular lessons at school. Among these activities, the following are identified and examined more closely:

⊙ the elaboration and formulation of relevant mathematical problems, including necessary definitions.

⊙ the search for the mathematically feasible, and

⊙ the recognition of opportunities to apply mathematical methods.

Also, implications for the design of project-based learning environments are developed.