An Open‐Source Laboratory Manual for Introductory, Undergraduate Soil Science Courses
An Open‐Source Laboratory Manual for Introductory, Undergraduate Soil Science Courses
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本科土壤科学入门课程的开源实验室手册
DOI:
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发表时间:
2017
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通讯作者:
D. Crouse
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作者:
C. Moorberg;D. Crouse
High textbook cost is a major obstacle to affordable higher education. Open textbooks present one solution, but open laboratory manuals must be developed for lab-based courses to successfully reduce overall textbook costs. Here, we present the Soils Laboratory Manual, an open-source lab manual for undergraduate, introductory soil science courses. The manual facilitates the ability for instructors to develop their own editions of the manual customized for their specific course, teaching style, students, or even local soils. The manual was implemented in AGRON 305, an introductory soil science course at Kansas State University. During the fall 2016 and spring 2017 semesters, 213 AGRON 305 students responded to a survey that included questions regarding textbook costs, open textbooks, textbook format, and the Soils Laboratory Manual. Of students surveyed, 62% had forgone purchasing required textbooks due to cost, demonstrating a clear need for textbook alternatives. Overall, the Soils Laboratory Manual was well received. Based on student preferences, lab manual formatting should be optimized for printed copies, or for PDFs viewed using laptops. Adoption of the Soils Laboratory Manual saves AGRON 305 students a cumulative $12,410 per semester. Similar savings are expected as new editions are developed for other soils courses across the United States and abroad. The Soils Laboratory Manual serves as a model for developing opensource resources for natural science courses. C.J. Moorberg, Dep. of Agronomy, Kansas State Univ., 2004 Throckmorton Hall, 1712 Claflin Road, Manhattan, KS 66506; D.A. Crouse, Dep. of Crop & Soil Sciences, North Carolina State Univ., 101 Derieux Place, Campus Box 7620, Raleigh, NC 27695. This is contribution no. 18-021-J of the Kansas Agricultural Experiment Station. Trade names and specific products are named in this article. No endorsement of those products by the publisher is intended, nor is any criticism implied of similar products not mentioned. *Corresponding author (moorberg@ksu.edu). abbreviations: AGRON 305, Agronomy 305—Soils; CC BY-NC-SA 4.0, Creative Commons Attribution—NonCommercial-ShareAlike 4.0 International License; GTAs, graduate teaching assistants; K-State, Kansas State University; LMS, learning management system; NC State, North Carolina State University; OAERs, open/alternative educational resources; PDF, portable document format; RTF, rich text format; SD, standard deviation; SSC 201, Soil Science Laboratory; STEM, science technology engineering, and math. Published in Nat. Sci. Educ. 46:170013 (2017) doi:10.4195/nse2017.06.0013 Received 26 June 2017 Accepted 28 July 2017 Supplemental material available online Available freely online through the author-supported open access option Copyright © 2017 American Society of Agronomy 5585 Guilford Road, Madison, WI 53711 USA This is an open access article distributed under the CC BY-NC-SA license (http://creativecommons.org/licenses/by-nc-sa/4.0/) core ideas • The Soils Laboratory Manual is a blueprint for open-source laboratory resources. • The Soils Laboratory Manual saves students a combined $12,410 per semester. • Open lab manuals should be optimized for laptop screens and printed copies. • Instructors can develop course-specific resources using this opensource lab manual. The continued rising cost of textbooks has become a serious limitation to affordable higher education. The College Board reports that students at 4-year, public institutions of higher education spend $1,250 per year on textbooks (The College Board, 2017). According to a survey conducted by Senack and the Student Public Interest Research Groups, 65% of students surveyed claimed they had forgone purchasing a textbook required for a class due to the high cost of the text, despite 94% of students admitting concern that not buying a textbook may hurt their grade in a course (Senack and The Student Public Interest Research Groups, 2014). Further, 82% of students surveyed said they would perform better in classes if a textbook was freely available online, along with an optional purchase of a hard copy, thus indicating open textbooks as a viable and student-preferred long-term solution to rising textbook costs. It should be noted that this survey included 2039 students from more than 150 universities, providing a general outlook on student views on textbook costs. In an effort to address these student concerns of textbook cost, some universities have established campus-wide efforts to develop and adopt open/alternative educational resources (OAERs) to reduce the burden of textbook costs on students. One example of such an initiative is the Kansas State University (K-State) open/alternative textbook initiative (“The Open/Alternative Textbook Initiative,” Kansas State University, 2016). Lashley et al. (2017) described the initiative in detail, stating that it entails competitively funded awards of up to $5,000 to facilitate the development and adoption of OAERs in K-State courses. They further state that the initiative is funded with a $10 fee that is charged to each student enrolled in courses using OAERs developed through initiative support, of which $9 is returned to the home department for each course to support the continued development of the OAER, and $1 is retained by the initiative for the competitive funding of future OAERs in other K-State courses. They show that this OAER funding model has Published August 23, 2017