ConcepTest: Stream Diversion Structure #1
This material was originally created for
Starting Point:Introductory Geology and is replicated here as part of the SERC Pedagogic Service.
Initial Publication Date: May 8, 2006
Question:
The town of Pleasantville is located at a meander bend in a floodplain. In order to reduce the threat of property loss due to erosion, Pleasantville's engineer proposes the construction of the diversion structure shown in the diagram below.
Along the course of the diversion, the stream gradient will be ___________ than the gradient along the existing meander bend.
a. greater
b. less than
c. the same
Along the course of the diversion, the stream gradient will be ___________ than the gradient along the existing meander bend.
a. greater
b. less than
c. the same
Student Responses:
No data yet. The correct response is a.
If you would like to help acquire more Before and After statistics for this example, please contact the authors (see link at top of page).
References and Notes:
The use of ConcepTests and Peer Instruction is discussed in detail on the ConcepTest page.
McConnell, D.A., Steer, D.N. and Owens, K.A., 2003, Assessment and Active Learning Strategies for Introductory Geology Courses, Journal of Geoscience Education, 51(2), 205-216.
McConnell, D.A., Steer et al., 2006, Using Conceptests to Assess and Improve Student Conceptual Understanding in Introductory Courses, Journal of Geoscience Education, (54(1), 61-68.