Respuesta :

The opening activity in a Project Based Learning (PBL project) to introduce the learners to the project topic and challenge is called Brainstorming.

The PBL method is a teaching and learning atmosphere where students learn by active engagement in real-world and meaningful projects.

During the brainstorming opening activity, the problem is defined, questions are asked, and the learning outcomes are formulated.  This activity is followed by studying the concepts of the teaching materials and researching the topic.

Thus, the opening activity in a PBL project is Brainstorming.

Learn more: https://brainly.com/question/17292951