R2D2 model
The R2D2 Model for Online Learning by Bonk and Zhang
The R2D2 Model was developed by Dr. Curtis J. Bonk and Dr. Ke Zhang in 2006 [1]. The acronym stands for Read, Reflect, Display and Do and was designed to guide instruction in the online learning environment. Bonk and Zhang sought to address the diversity amongst learner styles and preferences by positing a four-quadrant approach in this model.
Each quadrant seeks to apply to a specific type of learner. The read quadrant involves engaging learners through online readings, online lectures, podcasts and virtual explorations for the auditory and verbal learner. The second quadrant, the reflect component, suggests the use of online blogs, self-check examinations, e-portfolios and other reflective activities, to address the affective domain of learning. The third quadrant, the display component, focuses on visual representations and displays of the lesson content, for example the use of animations, concept maps, virtual tours and timelines to reach the visual learner. The fourth and final quadrant, the do component, seeks to address the kinaesthetic learner. It involves the use of real time scenarios, simulations and other hands-on activities that the learner can do in the online environment. [1]
About the Developers - Curtis J. Bonk
Curtis J.Bonk [2] is a Indiana University, School of Education Professor, and Adjunct in the university's School of Informatics, Computing and Engineering. He teaches courses in psychology and technology. [3] Mr. Bonk is the author of more than 435 publications including 20 books and 175 peer reviewed journal articles.[2] In 2021, Curtis Bonk received the David H. Jonassen Excellence in Research Award from Association for Educational Communications & Technology (AECT) [4]. This particular AECT award recognizes individuals who have demonstrated a long-term record of excellence in research in instructional design and technology. The award was established to remember the significant scholarly contributions made to the ECT field by Dr. David H. Jonassen. [3] The AECT named him a fellow in 2024. In 2022 Mr. Bonk was named a fellow by the American Educational Research Association (AERA) American Educational Research Association and was recognized in 2023 by the AERA with the Outstanding International Research Collaboration Award.[4]. Further to this, Curtis Bonk was honoured in the same year by the US Distance Learning Association (USDLA) with a USDLA Excellence in Distance Learning Research Award in Higher Education.[5][5] The Online Learning Consortium (OLC) made him an OLC Fellow for his “For his dedication to advance the principles and practices that underpin OLC’s Five Pillars of Excellence.”[6] Mr. Bonk co-hosts the weekly multiple award-winning podcast show, Silver Lining for Learning.[6].
About the Developers - Dr. Ke Zhang
Ke Zhang is a Professor of Learning, Design and Technology at Kennesaw State University and the Director of the School of Instructional Technology.and Innovation at the University.[7] Ke Zhang was an associate professor in the distinguishly regarded Instructional Technology Program at Wayne State University. Previously, she was an assistant professor at Texas Tech University from 2003 to 2006. She received her Ph.D. and Master's of Science in Instructional Systems from the Pennsylvania State University with a minor in Business Administration.[7]
Dr. Zhang has consulted in areas such as e-learning, instructional technology, organizational change, training, and workforce development with clients like Siemens, Proctor & Gamble, Pepsi, Otis, medical schools, government, and public school systems. Her extensive research activities have resulted in dozens of refereed journal articles, book chapters, and national, international conference presentations on online learning, collaborative technology, problem solving, and e-learning technologies.[8]
Ke also holds numerous positions at national and international professional organizations and prestigious journal review boards. Her popular book, Empowering online learning: 100+ activities for Online Reading, Reflecting, Displaying, and Doing was published by Jossey-Bass in 2008. [9]
The R2D2 Model
Online and distance learning has become increasingly popular over the years with the improvements in technology. It has been reported that in the United States alone, in 2004 2.7 million students took at least one online course, with 91% of the public educational institutions in the US offered online courses or classes. (Allen & Seaman, 2004)[8]
Learning styles differ among learners. Learning styles have been described as visual, auditory, reading/writing.and kinesthetic, known as the VARK learning styles.[9] Bonk and Zhang designed this model to provide an organized system to address all learning styles in the online environment and a mnemonic for easy remembrance of its name and use of it. They state that their model does not address the instructional design and development process, but instead focuses on the appropriate tasks, resources, and activities that should be included in online courses or modules to reach the various learning styles and preferences or skill target areas.[10]
Beyond its alignment with the VARK framework, the R2D2 model is underpinned by several established theories of learning and cognition. Its structure is highly congruent with constructivist learning theory, which posits that learners actively construct knowledge through experiences and reflections. The "Reflect" and "Do" quadrants, in particular, emphasize this active knowledge-building process [11]. Furthermore, the model incorporates principles from Mayer's Cognitive Theory of Multimedia Learning. The "Display" quadrant directly leverages Mayer's principle that people learn more deeply from words and pictures than from words alone, while the segmentation of learning into four distinct phases helps manage essential processing and prevent cognitive overload [12]. The non-linear, flexible nature of the model also allows it to support authentic learning environments, where complex, real-world tasks are central to the learning process, a concept championed by Herrington and Oliver[13] . By integrating these theories, the R2D2 model moves beyond a simple learning styles checklist and positions itself within a broader, evidence-based pedagogical framework.
The four quadrants of the R2D2 model, which was mentioned above refer to Reading, Reflecting, Displaying and Doing.Bonk and Zhang suggested a number of instructional activities and technologies or resources to align with each type of learner based on the quadrant of the model being addressed.
Application of the R2D2 Model
The Reading Component - for reading, listening and knowledge acquisition, learning activities suggested include online and offline reading materials, synchronous online presentations and online searches for information. This addresses auditory, read/write and verbal learners.These learners tend to prefer words, spoken or written explanations. For the online environment, learning activities such as online discussions, group discussions, webquests, charts, audio, online tutorials and webinars are proposed, with technology such as Instant Messenger, Chat platforms, podcast delivery platforms, yahoo groups etc.[14]
The Reflecting Component - the learning activities suggested include mock trials, online debates, collaborative paper writing in groups, writing reflection papers, providing feedback on papers, online role play and other similar types of activities. This addresses the reflective and observational learners who prefer to observe, reflect, and view learning. For the online environment, technology and resources such as blogs, bulletin board, threaded online discussion forums, streamed video, video conferencing, learning management systems like Moodle and Blackboard.[15]
The Displaying Component - the learning activities proposed include graphic representations of knowledge structures by learners, peer evaluations, learner created task timelines, virtual tours, animations, drawing tools, adventure blogging etc. This addresses visual learners who prefer visuals like diagrams, flow charts, pictures, films and demonstrations. For the online environment, technology and resources such as concept mapping, visual understanding environments, timeline tools, bulletin boards and platforms for virtual tours and the like are suggested to reach these learners.[16]
The Doing Component - the learning activities posited by the model include online demonstrations, case simulations and manipulations, project-based learning, case-based learning, online survey research, problem-based learning, online galleries to demonstrate students' learning outcomes and achievements and digital movie making based on reflective writings. This addresses the kinesthetic learners. Kinesthetic learners learn best by active doing, hands on activities and often group work. Technology and resources such as video streamed lectures, online projects, case simulations in business, medicine, science etc., digital video recording hardware and software and webcasts.[17]
The intention of the R2D2 model according to Bonk and Zhang (2006, is for instructors to be able to accommodate learners and learning activities in each quadrant for a more efficient and engaging online learning environment. Additionally, the model puts forward a learning and problem-solving process that is implemented along a continuum that starts with the acquisition of knowledge, followed by the reflection and visualization of it and then finally, to its actual use.[18]
Impact and Influence
The R2D2 model has had a notable impact on the discourse and practice of instructional design, particularly in the realm of online and distance education. Its primary influence lies in providing a practical, easy-to-remember heuristic for designers and instructors seeking to diversify their instructional strategies beyond simple text-based content delivery. The model has been widely cited in instructional design textbooks and competency studies as a key framework for creating engaging online learning experiences[19]
Its influence extends to faculty development and training. Many university centers for teaching and learning, such as the one at the University of Illinois Springfield, have adopted the R2D2 model as a foundational tool for training instructors in best practices for online course design, emphasizing the need to address multiple modalities of engagement [10]. Furthermore, the model's clear structure has made it a valuable tool for organizing and segmenting complex online content, helping to scaffold learning for students and provide multiple pathways to achieve learning objectives. Its publication in a leading distance education journal and subsequent translation into a practical handbook ensured its dissemination to both academic researchers and practicing instructional designers, cementing its place as a recognizable model within the field.
Criticisms/Limitations of the R2D2 model
The R2D2 model's foundation is laid solidly on catering to the learning styles of auditory, visual, read/write and kinesthetic learners.[20] The most significant criticism concerns its foundational reliance on the theory of learning styles, a concept which has been extensively challenged within educational psychology. Major reviews of the literature have found a lack of empirical evidence that tailoring instruction to a student's self-reported learning style improves outcomess. [21].[22][23] Critics argue that by organizing itself around auditory, reflective, visual, and kinesthetic preferences, the R2D2 model promotes an instructional design principle that is not empirically supported.
An identified limitation of the implementation of the R2D2 model is its practicality. The model calls for a lot of resources for it to be implemented effectively and creating high quality activities for all four quadrants of read, reflect, display and do requires time, expertise and financial investment.[24]
A systematic search of the literature reveals a limited number of independent, controlled studies validating the efficacy of the R2D2 model compared to other instructional frameworks. While case studies e.g. Exploring the R2D2 model for online learning activities to teach academic language skills (Cartner & Hallas, 2009) [25][11] report positive outcomes, the broader empirical base for the model remains underdeveloped.
In response to critiques regarding learning styles, proponents of the model argue that its intent is not to label learners but to ensure a variety of instructional methods are present in a course, which is a universally beneficial practice. They contend that the quadrants are a design tool for enriching the learning environment, not a prescription for matching content to a fixed learner profile[26] . However, critics maintain that the model's explicit linkage of quadrants to specific learner types (e.g., "visual learner") perpetuates the very conceptualization that empirical evidence has failed to support [27]. This tension highlights the ongoing debate between designing for perceived preferences versus designing based on evidence-based principles of how all people learn.
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- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08). "Introducing the R2D2 Model: Online Learning for the Diverse Learners of This World". Distance Education. 27 (2): 249–264. ISSN 0158-7919. Check date values in:
|date=(help) - ↑ "Curt Bonk: : Directory: About: School of Education: Indiana University Bloomington". School of Education. Retrieved 2025-10-18.
- ↑ "David H. Jonassen Excellence in Research Award - Association for Educational Communications and Technology". aect.connectedcommunity.org. Retrieved 2025-10-18.
- ↑ "2022 AERA Fellows". www.aera.net. Retrieved 2025-10-18.
- ↑ "2023 International Distance Learning Awards". USDLA. Retrieved 2025-10-18.
- ↑ "Complete List of OLC Fellows". Online Learning Consortium. Retrieved 2025-10-18.
- ↑ "Faculty and Staff - Bagwell". www.kennesaw.edu. Retrieved 2025-10-19.
- ↑ Allen, I. Elaine; Seaman, Jeff (2004). Entering the mainstream: the quality and extent of online education in the United States, 2003 and 2004. Sloan Consortium. Needham, MA: Sloan Consortium. ISBN 978-0-9677741-8-3. Search this book on
- ↑ Knill, Oliver. "VARK Learning Styles". people.math.harvard.edu. Archived from the original on 2025-07-21. Retrieved 2025-10-19.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919. Check date values in:
|date=(help) - ↑ Hartel, Heather A. (2010). "Empowering Online Learning: 100+ Activities for Reading, Reflecting, Displaying, and Doing – By Curtis J. Bonk and Ke Zhang". Teaching Theology & Religion. 13 (1): 82–84. doi:10.1111/j.1467-9647.2009.00585.x. ISSN 1467-9647.
- ↑ Mayer, Richard E. (2009-01-12). Multimedia Learning (2 ed.). Cambridge University Press. doi:10.1017/cbo9780511811678. ISBN 978-0-521-51412-5. Search this book on
- ↑ Herrington, Jan; Oliver, Ron (2000-09-01). "An instructional design framework for authentic learning environments". Educational Technology Research and Development. 48 (3): 23–48. doi:10.1007/BF02319856. ISSN 1556-6501.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919. Check date values in:
|date=(help) - ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Richey, Rita (2011). The instructional design knowledge base: theory, research and practice. James D. Klein, Monica W. Tracey. New York: Routledge. ISBN 978-0-415-80201-7. Search this book on
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Kirschner, Paul A.; van Merriënboer, Jeroen J.G. (2013-07-01). "Do Learners Really Know Best? Urban Legends in Education". Educational Psychologist. 48 (3): 169–183. doi:10.1080/00461520.2013.804395. ISSN 0046-1520.
- ↑ Pashler, Harold; McDaniel, Mark; Rohrer, Doug; Bjork, Robert (2008-12-01). "Learning Styles: Concepts and Evidence". Psychological Science in the Public Interest. 9 (3): 105–119. doi:10.1111/j.1539-6053.2009.01038.x. ISSN 1529-1006.
- ↑ Cuevas, Joshua (2015-11-01). "Is learning styles-based instruction effective? A comprehensive analysis of recent research on learning styles". Theory and Research in Education. 13 (3): 308–333. doi:10.1177/1477878515606621. ISSN 1477-8785.
- ↑ Bonk, Curtis J.; Zhang, Ke (2006-08-01). "Introducing the R2D2 Model: Online learning for the diverse learners of this world". Distance Education. 27 (2): 249–264. doi:10.1080/01587910600789670. ISSN 0158-7919.
- ↑ Cartner, Helen; Hallas, Julia (2009-12-01). "Exploring the R2D2 model for online learning activities to teach academic language skills". ASCILITE Publications: 110–115. doi:10.14742/apubs.2009.2303. ISSN 2653-665X.
- ↑ Bonk, Curtis J. (2008). Empowering online learning: 100+ activities for reading, reflecting, displaying, and doing. Jossey-Bass higher and adult education series. Ke Zhang. San Francisco: Jossey-Bass. ISBN 978-0-7879-8804-3. Search this book on
- ↑ Kirschner, Paul A.; van Merriënboer, Jeroen J.G. (2013-07-01). "Do Learners Really Know Best? Urban Legends in Education". Educational Psychologist. 48 (3): 169–183. doi:10.1080/00461520.2013.804395. ISSN 0046-1520.
