"A well-designed Web Quest combines research-supported theories with effective use of the Internet to promote dependable instructional practices." (March, T. 2003)
Web Quests, if used correctly, are an engaging and challenging experience for learners. They open the learners thinking and engage them through interesting and relevant material. I have completed a web quest for another subject in my first year of my degree, and I found it quite enjoyable, but time consuming at the same time.
I believe that if a teacher had the time to complete a web quest, it could be used so well in the classroom. You would be able to have the students working at their own pace, on a task that you have created yourself. The only real constraint of a web quest is the amount of time it takes to create one.
As I have made one already, I understand the time it takes to complete, even just a simple web quest. And even when you think you have completed it, the amount of links that are needed, etc. can be quite daunting for teachers who are not extremely technological savvy.
If the teacher did have enough free time to complete something like a web quest, and they did have the right classroom environment/computer lab to complete a full class activity, a web quest could be utilised effectively.
There are just so many constraints with a web quest.