Project-based learning addresses the required content standards. In PBL, the inquiry process starts with a guiding question and lends itself to collaborative projects that integrate various subjects within the curriculum. Questions are asked that direct students to encounter the major elements and principles of a discipline.

You can't tear students away from their schoolwork when it involves in-depth investigations with real-world applications.
In PBL, the teacher or the students pose a guiding question [1]: "What happens at night?" "What do nocturnal animals do while we're sleeping?" "What is cystic fibrosis, and how is it caused?" "What would happen if our class formed a business with a real product and started selling stock?" "What will a high school look like in 2050?" (These questions are the basis for projects you'll see in Edutopia.org articles and videos.)
Recognizing that children have different learning styles, concrete, hands-on experiences come together during PBL. Field trips, experiments, model building, posters, and creation of multimedia presentations are all viable activities within PBL, and present multiple ways for students to demonstrate their knowledge -- there is no one right answer.
By creating bridges between subjects, students view knowledge holistically, rather than looking at isolated facts. Education scholar Sylvia Chard [2] says the project approach is an "in-depth investigation of a real-world topic worthy of children's attention and effort."
"The classroom is a place where people can live a fulfilling life together as a community of learners if needs and concerns are appropriately expressed. Problems can be discussed. Support, encouragement, and models can be provided by both teacher and peers. Where expectations for children's learning are high, it is important that the social interaction itself is designed to facilitate learning."
--Education researcher Sylvia Chard
PBL promotes understanding, which is true knowledge. Students explore, make judgments, interpret, and synthesize information in meaningful ways. This approach is more representative of how adults are asked to learn and demonstrate knowledge.
Watch the video Newsome Park [3]. 
PDF files can be viewed on a wide variety of platforms -- both as a browser plug-in or a stand-alone application -- with Adobe's free Acrobat Reader program. Click here [4] to download the latest version of Adobe Reader. To download a free version of the Microsoft PowerPoint Viewer, visit Microsoft's Download Center [5].
This teaching module is organized into five chapters:
To navigate through this module, see the local navigation on each page at the top right.
To further your understanding of PBL, subscribe [11] to Edutopia's FREE e-newsletter Project-Based Learning. Every week, you'll receive concise editorial highlights from other news sources, as well as links to articles, videos, and other content from Edutopia.org.
Links:
[1] http://questioning.org/module/module1.html
[2] http://www.ualberta.ca/~schard/
[3] http://www.edutopia.org/newsome-park
[4] http://www.adobe.com/products/acrobat/readstep2.html
[5] http://office.microsoft.com/en-us/downloads/CD102006831033.aspx
[6] http://www.edutopia.org/teaching-module-pbl
[7] http://www.edutopia.org/teaching-module-pbl-why
[8] http://www.edutopia.org/teaching-module-pbl-what
[9] http://www.edutopia.org/teaching-module-pbl-how
[10] http://www.edutopia.org/teaching-module-pbl-resources
[11] http://www.edutopia.org/edutopia/enews