First attempt:
As a soil weathers, the salts move first, and then finally the clays which in turn the horizons start to develop and differentiate. What most likely would this soil order be?
A. Mollisols
B. Alfisols
C. Oxisols
D. Vertisols
The purpose of this question is to see if the students understand the soil orders. I will ask the students to answer the question. Than allow the student to get into groups of 2-3 and discuss the question and reanswer the question again. Open class discussion will follow.
Second Attempt:
As a soil weathers through time, precipitation and additions of vegetation aid in that weathering process. Usually first to move within the soil profile are the salts and last to move are the clays creating different horizons. A profile that has extremely developed horizons would be what soil order?
A. Mollisols
B. Alfisols
C. Oxisols
D. Vertisols
E. Mollisols and Oxisols
After reading the handout in class and talking with Margot I realized that I should be more detailed in my clicker question based on the examples in the handout. The students needed more background and information in the question. Also to stimulate more discussion, I added E to get the students to interpret the option of having two soil orders that could fit this situation. By adding the E would require the students to make significant decision making choices in hence active discussion would take place. The correct answer is C.
I think you did a really good job revising this question. I wasn't sure what you were looking for with your first question, but the second question is much easier to follow. I think that your second question, followed by in class discussion would really help students to understand some of the differences among soil orders.
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