Pay Dirt: Multiple Approaches to Cooperative Learning in Physical Geography Richard Knox and Gavin Schwan This paper was completed and submitted in partial fulfillment of the Master Teacher Program, a 2-year faculty professional development program conducted by the Center for Faculty Excellence, United States Military Academy, West Point, NY, 2016. Abstract This paper compares three approaches to cooperative learning in a large introductory physical geography class. Student performance in cooperative learning laboratory exercises was correlated with exam performance. Roughly 500 lower-division students experienced varying levels of in-class, cooperative learning with instructor supervision and out-of-class work. We found a very low correlation between lab work and exam performance, with R-squared values varying from 0.02 to 0.21. Terms experiencing the highest correlation between lab and exam performance involved the greatest amount of in-class work and instructor contact. While inconclusive, this paper encourages the consideration of cooperative learning, assessment structures, and instructor contact in delivery of physical geography courses. Introduction and Research Context According to V.L. Clegg (1979), effective teaching should capitalize on students’ natural curiosity in order to promote motivation and thereby increase learning. Presentation of a problem and provision of a modicum of direction and structure in a supervised classroom environment should encourage student initiative and analysis that makes learning fun and improves understanding. This philosophy nests well with cooperative learning, generally typified as students working together in small groups to accomplish a task that furthers their individual learning (Watson, 1992; McKeachie and Svinicki, 2006). Indeed, research into cooperative learning techniques have shown increased student participation and satisfaction, strongly suggesting that students prefer cooperative methods as compared to traditional lecturebased classroom instruction (Kraft, 1985; Lyman and Foyle, 1991; Lindquist, 1995; Stelt, 1995; Miller and Groccia, 1997; Karim, Rutledge, and Titard 2000; Brown and Klein, 2003; Gupta, 2004; Saunders, 2008). Cooperative learning techniques are thus generally considered effective in harnessing student curiosity and encouraging motivation, and have likewise been shown to improve learning performance (Ravenscroft, et al., 1995; Hampton and Grudnitski, 1996; Hite, 1996; Nowak and Miller, 1996; Whicker, Bol and Nunnery, 1997; McKeachie et al., 2006). Still, research does exist evidencing a negative or weak relationship between cooperative methods and improved learning as assessed by test and course scores (Herzog and Lieble, 1996; 1 Kunkel and Shafer, 1997; Brown et al., 2003; Smith, 2007). Cooperative learning techniques are many and varied (Watson, 1992), and mixed results may therefore indicate that some methods are better than others, potentially dependent on environment and student composition, or that there are better ways of implementation in the classroom. With these factors in mind, the Introduction to Physical Geography course (EV203), a 40 lesson compulsory course at the United States Military Academy known locally as “Dirt”, is structured with several lab periods during which students are assigned to work in pairs to complete various exercises provided in a course-required lab manual. Each term, roughly 500 students were enrolled in the course with class sizes of 15 to 18 students per instructor. Watson (1992) calls this method of cooperative learning, “learning together,” which is little addressed by existing literature as concerns college-level geography and physical science courses, although this appearance may be due to differences in terminology. In Herzog et al (1996), this technique (described though not so named) is examined with inconclusive results, although the researchers do find, in concert with numerous other studies identified above, that students evidently preferred cooperative learning activities as opposed to lecture-based classes. Smith (2007), however, reported a weak correlation between grades and similar group lab work in a geography classroom. Additional studies (Lyman et al., 1991; Gupta, 2004) analyzing the “learning together” technique in a physical science classroom only assess student preference without considering any measureable effects on learning. The purpose of this research was twofold. First, we sought to assess the value of lab work in EV203 in terms of its impact on overall learning as could be determined by individual student grades on tests. The data sets available following a restructuring of the course in the Fall Term of Academic Year 2014 further allowed us to consider three separate terms, over which time the lab experiences varied in instructor-student contact and student time spent working individually and cooperatively. Specifically: Fall Term, Academic Year 2014 (Term 141): Labs were assigned at the beginning of the lab period and were to be turned in at the beginning of the following class period. Students worked in groups of two or three and turned in labs individually. Spring Term, Academic Year 2014 (Term 142): Labs were assigned the class period before the lab period and were due at the end of the lab period. Although permitted to work in groups of two or three, a small number of students would turn the lab in at the beginning of the lab period, having worked on the lab in their own time and without any supervision or help from their peers or guidance from their instructors. Students were still instructed to submit labs individually for a grade. 2 Fall Term, Academic Year 2015 (Term 151): To avoid cadets working individually, labs were assigned at the beginning of the lab period and were due at the end of that same lab period. In most cases students were still instructed to submit labs individually for a grade, but a minority of instructors, allowed the latitude, permitted groups to turn in one lab for a group grade that was applied individually to all students in the group. This method of delivery continues to the present time. With these differences in lab delivery, the second goal of this research was to assess these separate methods to determine if one benefitted students more than the others. Additionally, it afforded the opportunity to measure not only the value of cooperative learning but also studentinstructor contact. Instructors provide valuable context and framing to student groups working on lab assignments in class, and thus the method of lab delivery should ideally maximize student-instructor contact while still promoting cooperative group work. As such, we hypothesized that the method of lab delivery practiced in Term 151 would show the best results. During that term, students were required to complete all work in class, ensuring that all work was cooperatively executed. This method further permitted instructors to monitor student progress, check work, and provide guidance as necessary to shape student understanding. We therefore expected to find that lab scores and test scores were higher in Term 151. Methodology and Data This research made use of lab, exam 1 and 2, and the final exam scores from students enrolled in EV203, during the 141, 142, and 151 terms. Falling around lesson 20, exam 1 evaluated material explored in the weather and climate block and labs 1, 2, 3, and 4. Exam 2, near lesson 32, evaluated material covered during the geomorphology block and labs 5 and 6. The final exam, after lesson 40, evaluated material from all labs, both exams, and 6 or 7 other lessons. Analysis was conducted in three general categories: exam 1 and corresponding labs, exam 2 and corresponding labs, and the final exam and all labs. Labs and exams differed slightly between terms. To evaluate how these differences could impact this research, a mean analysis of scores in each term was conducted. To determine how lab performance correlated with overall course performance, a linear regression was conducted between corresponding labs and exams. A coefficient of determination (R squared) was determined. Results The mean analysis of scores and R squared values are illustrated in figure 1 below. The linear regression and R squared for the final exam and all labs is illustrated in figures 2, 3, and 4, below. 3 Labs 1-4 Exam 1 R squared Mean All terms 89.2 80.1 141 -0.8 1.1 (0.18) Term +/142 0.5 -1.0 (0.15) 151 0.2 -0.2 (0.19) Labs 5-6 Exam 2 R squared 91.2 81.1 0.1 -0.4 (0.09) 0.7 -0.2 (0.03) -0.9 0.6 (0.02) All labs Final Exam R squared 90.0 79.9 -0.4 -0.1 (0.21) 0.6 -1.0 (0.17) -0.3 1.2 (0.21) Figure 1: Means and R squared values of labs, exam 1 and 2, and the final exam This chart illustrates mean values for labs, exams 1 and 2, and the final exam. The left column is the three-term mean value and the subsequent 3 columns illustrate that terms difference from the mean, either positive or negative (in gray). The R squared values between labs and corresponding exam were all positive and are found in parentheses. Term 141 n = 536, term 142 n = 428, term 151 n = 583. Figure 2: final exam and all lab scores, term 141 4 Figure 3: final exam and all lab scores, term 142 Figure 4: final exam and all lab scores, term 151 Discussion With R squared values between 0.02 and 0.21 for labs and exams our analysis is consistent with many researchers (e.g. Herzog and Lieble, 1996, etc.) that found a weak correlation between cooperative learning events and assessments. Generally, correlations compared closely across similar events for all terms with slight decreases in term 142. While all R squared values were very low, values for exam 1 and labs and the final exam and labs were higher between 0.15 and 0.21 while values for exam 2 and labs was near zero from 0.02 to 0.09. This project doesn’t disentangle the impacts of cooperative learning and exam assessment issues. However, our experience in the course allows us to offer some explanation for the extremely low correlations. Still low, exam 1 and labs correlated much higher than exam 2 and labs. It is thought that exam 1 questions more closely match the type of questions posed in labs compared to exam 2 and labs. Instructors frequently tells students to use labs to study for exam 1 but rarely offers that advice for exam 2. This project certainly raises the question of matching 5 assessment topics and styles between labs and exams. Is the low correlation between labs and exams due solely to assessment differences? We don’t think so. Term 142 is unique in that mean lab scores were high, about a ½ percent above the threeterm mean, but correlations of labs and exams were lower than correlations in terms 141 and 151 in five of six cases. It is likely these observations are not just a statistical artifact and may shed some light on this project’s second aim, namely to determine which of the lab delivery methods benefited students the most. Students in 142 spent more time working on labs independently, since they were able to submit the lab and leave. Students in 141 would conduct most of the work in class and then “brush up” the lab afterwards. Students in 151 started and completed the lab in class. At first glance, this is counterintuitive: shouldn’t less instructor supervision result in lower overall grades? Maybe not. Generally, the students that would work on the labs unsupervised, were driven, talented students who normally scored very well. They were “selfstarters” in other words. All else being equal, students like this were able to work in a timeunconstrained environment and perhaps score better than they normally would, leading to a ½ percent increase in overall lab scores. Or, possibly, the ½ percent difference in lab scores is an artifact. So, then, why does this term have the lowest correlation between labs and exams in five of six comparisons? Simply, it is likely that the instructor’s diminished impact, with this term seeing the greatest amount of lab work completed unsupervised, outside of class, is responsible for the low correlation between labs and grades. While students scored as well or better than normal on labs, the instructor was unable to do a number of important things such as help students see the big picture, make connections between the lab work and previous lessons or blocks, and help students focus on concepts that are normally tested on. The first two items, seeing the big picture and making connections, results in meaningful, long term learning by allowing students to build a framework of learning, as opposed to memorizing and dumping tidbits of information, that likely results in better outcomes. Additionally, term 142 saw less cooperation between students, supporting cooperative learning. Regarding term 151, our hypothesis that lab and exam scores would be higher was partially borne out. While lab scores were slightly lower (discussed above), correlation between labs and exam 1 and the final exam were higher. Greater cooperation and instructor contact during laboratory exercises could certainly have resulted in more meaningful learning as shown by the higher lab – exam correlation. The higher correlation for labs and the final exam possibly illustrate a greater degree of long-term learning. Linkages to performance on the final exam are of great interest given its integrative, comprehensive nature. This project bears out the hypothesis that greater focus on cooperative learning and instructor contact at least partially influences better outcomes in the course. We find that term means for labs and exams vary by no more than 1.2% from the threeterm mean. Accordingly, we are comfortable assuming that differences in labs and exams between each term is not the cause of any of the trends noted above. 6 Conclusion and Recommendations Not unlike previous studies of “learning together” styled cooperative activities in a geography classroom environment (Herzog et al, 1996; Smith, 2007), our research finds a very weak correlation between cooperative learning techniques and improved student assessments. The possibility cannot be overlooked that this design of cooperative learning is ineffective in improving student understanding of geographic patterns and processes. Existing literature seems to suggest the popularity of problem-based learning (PBL) in college-level geography classrooms vice cooperative learning techniques as a whole. PBL is a collaborative learning style that differs from cooperative learning in that students are assigned to work on different aspects of a problem and required to combine individual skills and research to address a larger issue. Despite the apparent popularity, available studies, taken as a whole, offer similarly mixed results as compared to literature on cooperative learning techniques. While Spronken-Smith (2005) offers a positive view of PBL, identifying improved evaluation scores, several others (Fournier, 2002; Chappell, 2006; Pawson, Fournier, Muniz et al., 2006) could identify no such benefits and were cautious in recommending the learning style. In sum, these studies into the use of both cooperative and collaborative learning styles in college-level geography classrooms leaves little room for recommending peer learning (the umbrella category related to group classroom work) for geography students on the basis of provable causative relationships between peer learning and consequent improved learning. Still, we should assume the coalescing of multiple variables when considering individual classroom performance, regardless of the chosen learning technique. Examining variations in the delivery of lab work, as this paper does, returns little data of consequence in terms of valuation differences between structures, but may highlight the importance of student-instructor contact and the relationship between peer learning and assessment structure. Future research should weigh these variables in order to more fully understand the value of cooperative learning techniques in the college-level geography classroom. 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