Conceptest: Equator tilt change

David McConnell, Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University

Created with funding from NSF CCLI Award #0087894. Author Profile
This material was originally created for On the Cutting Edge: Professional Development for Geoscience Faculty
and is replicated here as part of the SERC Pedagogic Service.

Question:

What would happen to the average temperature at the equator during our summer if the tilt angle of Earth's axis increased to 27 degrees?
A. Temperatures would increase
B. Temperatures would decrease
C. Temperatures would stay the same

Student Responses:

These responses were collected from 384 students (mostly freshmen, non-majors) in multiple large Earth Science classes (60+ students).

A. 36% of students chose this answer
B. 52% of students chose this answer (correct)
C. 12% of students chose this answer

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.