Firstly, let's clarify what we mean by rigor. It's all the rage in education circles around the world, and the East certainly prides itself in the rigor that it offers kids. Rigor, I think, refers to three things:
- The level of challenge of the problems/tasks/assessments that kids are expected to do.
- The level of precision and quality expected of kids, especially when it comes to basic skills like mathematical problem solving, critical reading, and analytical writing.
- In order to ensure that kids can meet academic challenges and display strong academic skills, a rigorous education often requires teachers to explicitly teach concepts, assign homework, and provide detailed feedback. Rigor involves lots of practice with the goal of mastery. Rigorous education is often associated more with traditional exam-focused instruction than with constructivist project-based progressive education.
If kids don't have strong skills and lots of rich content knowledge, they might end up just skimming the surface and not really learning anything deep. Without a rigorous skill-focused education, kids' reports and projects might involve sloppy writing and bad grammar; when they read, they might focus more on their feelings and less on actual literary analysis. Additionally, they will almost certainly have weak math foundations full of gaps; it's really hard to gain a strong math foundation without a systematic, sequential, and rigorous program. And as any student can tell you, group projects often mean that a few kids do all the work and learn a lot, while the other kids do very little and learn nothing. So yes, they offer creativity and inspiration, and kids certainly learn a lot from well-designed projects and explorations, but constructivism is not perfect either.