"These cover all the content areas and are FREE to use."
Project Based Learning (PBL) provides opportunities for students to collaborate on specific tasks to resolve one or more challenges. The effort is driven by asking questions that feed the investigative processes where students do some level of research to collect data and then draw conclusions by summarizing what they found.
Read the article and reduce your learning curve on PBL ... share it with your colleagues and get all the students at your school on the best track.
This ain't just 'bout your class, it's how you prepare your students for better careers as life long learners.
Happy Hump Day, Jack