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Physics: Active Web-based Labs
Why:
"Many of the physics teachers are getting near retirement age, and it's hard to replace them. Getting somebody to teach at a small rural school is a problem... And maybe some of them just aren't very well prepared because physics scares a lot of people. Some small schools have to share teachers, but it puts extra time demands on the teacher." |

(Terry Frisch: ILO Physics Instructor)
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Mr. Frisch noted that many physics teachers, particularly in rural areas in Iowa, are nearing retirement age. He believed that getting new replacements may prove to be difficult because not many teachers want to teach in rural areas, and there may be fewer fresh graduates majoring in physics because of the perception that physics is a difficult subject. Additionally, rural schools find it challenging to distribute their limited resources when enrolments are low. Sharing of teachers between small schools limits the teacher's time and energy to design and implement effective curriculum.
In an effort to address this concern, Mr. Frisch decided to continue his teaching career after his retirement. He accepted employment with Iowa Learning Online, and helped to develop and teach a web-based physics course accessible to all high school students in Iowa. The course is designed to be flexible so students can enroll to take the class at a distance with him. Additionally, the units for the course are self-contained so other physics teachers who wish to use parts of the course to supplement their own teaching can do so without having to invest so much time in preparation.
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WHAT:
Usually, I start out with a web walk. I guess it is a lecture where we go through and look at the unit, and they can get a feeling of what's going on. Within each unit are simulations and examples of practice problems for them to do. Sometimes I start out with a quick lab. For example, I'll have them look into a spoon, both sides of a spoon, and they'll see different images when they look into it. It's a quick lab to get started. The question comes up, "How do you think your eyes see these images?" I call it 'disequilibrating,' I want them too think outside the box, just a little bit...
(Terry Frisch: ILO Physics Instructor) |
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Case Quick Reference
Subject: Physics
Grade Level: 11-12
Type: Elective Course
Number of students: 20-25
Setting: Rural and Suburban
Time Line: Semester
Assessment
Quizzes and Tests
Laboratory activities
Web-based simulations
Technologies Used
Iowa Communications Network
WebCT
Internet and WWW
email
Organization
Students from rural high schools enrolled in an elective physics course taught at a distance. The teacher used ICN and WebCT for instructional activities and assigned laboratory activities which students carried out individually or with a partner at the same location. Communication and interaction between students and teacher, and among students were facilitated through ICN, the discussion board in WebCT, and emails. The teacher also traveled to the schools to conduct laboratory experiments with students at their ICN sites. Study coaches at each high school were assigned to assist with technical difficulties, preparations for laboratories, content clarification, and proctored tests.
Resources
Syllabus
Textbook
Orientation activity
Riverdeep simulations
Sample progress report
Sample Unit
Sample Lesson
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Eleventh- and twelfth-grade students from two different rural high schools enrolled in one section of an elective physics course. The course was designed for high school students interested in pursuing studies in science-related areas such as engineering, health science, and architecture.
"Physics is fun!" is Mr. Frisch's motto. He believes that students should enjoy learning physics, and gain knowledge that is applicable to real life situations. Therefore, he continued to use student-centered pedagogical approaches that had been successful in his classroom for many years —demonstrations, quick labs, labs, and problem-solving scenarios. In addition, he often included questions that encouraged critical thinking. These questions encouraged students to reflect their understanding of concepts. He also used cartoon guides from the textbook and his own copy of The Cartoon Guide to Physics to illustrate concepts and add humor into his lessons. A modular textbook was selected, and Mr. Frisch values the illustrations and reviews provided within each unit. Since this was an online course, he added virtual labs and simulations to his curriculum to further enhance his students' learning experience.
Mr. Frisch chose to visit his students at their high schools from where he gave the ICN session. On these occasions, Mr. Frisch organized students to demonstrate to their classmates on ICN instead of only originating from the ICN room at his work site. This approach helped to engage the students, and it also helped the teacher to develop a closer rapport with his students. Mr. Frisch had considered having regional labs, but decided against that option because the distance between the two schools was so great that too much time would be wasted transporting the students to one common location. For the school that had more than one student enrolled in the course, the teacher paired up students so they had a lab partner. In the school that only had one student, that student relied more on the support of his local science teacher.
Mr. Frisch had a firm belief in Piaget's learning theory so his approach had students question real-life situations, develop understanding of the underlying concepts, and then apply this knowledge to other situations. Most units began by exposing students to common everyday activities using demonstrations, quick labs, and/or web walks. For instance, in Unit 5: Work, Energy & Power, he started his first lesson with a series of demonstrations and discussions to get students thinking about the amount of work done when a force acts through a distance. Demonstrations included holding a chair at arm's length and rolling a ball across the desk. Based on their observations, the students completed data tables which noted measures of angles, force, distance, and other relevant factors. This process served to "disequilibrate" the students so they would be intrigued and motivated to proceed with the unit.
Following disequilibration, Mr. Frisch led his students through a web walk which provided carefully selected links on the internet that were related to the current topic. For this unit, the teacher led them to The Physics Classroom and the Multimedia Physics Studio with detailed instructions on where to go and what to expect. With the web walk, the teacher posed thoughtful questions to assist his students in creating their own hypotheses. Students were required to post their thoughts on the electronic discussion board in WebCT. These discussions were threaded with the topic number, e.g. 5.1.1 and 5.1.2. Based on the students' responses, the teacher directed individual questions to students to further facilitate reflection. Students were also encouraged to respond to each other's comments in a reflective and constructive manner by indicating agreement or disagreement plus their reasons.
Web walks and quick labs were often followed by some form of more detailed hands-on lab. The range of labs in the course included experiments that students conducted themselves, virtual labs using Riverdeep software, and/or other simulations online. Their results would then be shared in the electronic discussion board in WebCT to enable classmates to compare their results and monitoring by Mr. Frisch. For the first lesson on Unit 5: Work, Energy & Power, students conducted experiments to see how much power could be produced by various parts of the human body. Students were required to note their observations in tables provided in WebCT, share their results in WebCT discussions, and compare their results with others.
Additional activities related to real life situations were included to ensure that students applied and related their new learned knowledge to life. For this unit, the teacher included a virtual lab on roller coasters. In this lab, the students were first introduced to how roller coasters work on the web at HowStuffWorks. Then they learned about how roller coasters are designed and the factors that need to be considered at the Amusement Parks Physics page from Learner.org web site. Finally, students conducted their own virtual lab at The Virginia Instructors of Physics Online Roller Coaster Lab site where they had to observe the speed of the roller coaster and length of the train. Students then calculated the height differences and presented their results in a Power Point in both WebCT and over the ICN. In other units, the virtual labs are simulations accessed through Riverdeep and saved to electronic portfolios within Riverdeep.
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Assessment of students' comprehension was an important part of this course. The teacher used proctored online quizzes and tests as assessment tools in addition to students' participation and lab results. These quizzes and tests consisted of multiple choice and short answer questions. Student coaches at the respective high schools were provided the password, which they provided for the students to access the quizzes while they proctored the session. For Unit 5: Work, Energy & Power, the students completed an online quiz on Work and Power in the first lesson and a more comprehensive test on Energy in the third lesson.
Each high school had a study coach who was the students' advocate. The study coaches assisted the students when they had technical difficulties or needed help with content. Mr. Frisch emailed instructions to study coaches ahead of time so they could get materials and equipment ready for labs. Occasionally, he brought his own equipment to the school, which saved the student coaches' preparation time. The study coaches received progress reports every two weeks from the teacher, and printed them for the students' parents. For the school which only had one student, the study coach played an additional supporting role since that student did not have a lab partner. Additionally, students found support from other employees such as the media specialist, science teachers, and secretary. Both schools made virtual schooling a community effort.
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HOW?
You will use the virtual classroom to learn information and discuss topics as well as have sessions via the Iowa Communications Network (ICN). The ICN sessions will be scheduled at a time mutually agreed upon by you and me. For hands-on work with appropriate equipment and materials, you will participate in regional sites twice per semester. The course is inquiry-based, so you will be expected to gather data in your distant environment that will be shared with and analyzed by the class.
(Terry Frisch: Course Description in Syllabus) |
The teacher uses two main technologies to teach the course depending on the purpose and the nature of the activity. The Iowa Communications Network is a two-way interactive video system with studio classrooms in all Iowa school districts and most high schools in Iowa. Students gather in their respective ICN rooms at their high schools and the teacher joins them from the originating ICN site at his work location at Iowa Public Television (IPTV) or the nearby Johnston High School (his former school). Mr. Frisch values ICN for visual contact, using it for live demonstrations, synchronous class discussions, and student presentations. His students are also encouraged to meet with him over ICN during his virtual office hours or schedule an appointment if they have questions or concerns. Parent-teacher conferences are also conducted over the ICN, which helped parents to get a better sense of how the course is taught.
The second main technology that the teacher uses to manage his virtual classroom is an online course management software called WebCT. In this virtual environment, the teacher organizes the course with links to 16 units of content, quizzes and tests, discussions, assignments and other aspects. The units are progressively covered over 16 weeks, one unit per week (8 units in Semester 1 and 5 units in Semester 2). Students log in to the virtual classroom with their assigned username and password over the Internet. These lessons and activities are guided by detailed instructions from the teacher, and questions are posed to facilitate the students' thinking process. Students also use the virtual classroom to share their findings and observations. In WebCT, students often post their thoughts and findings on the electronic bulletin board. Power Point presentations and other files are attached and shared in this area.
The teacher uses WebCT to monitor students' participation and discussions, as well as their grades. Additionally, he communicates with his students both privately through email and publically on the electronic bulletin board. In addition, the teacher also uses the chat room in WebCT to review quizzes and tests. Quizzes and tests are also uploaded in the virtual classroom. The teacher enlists the help of study coaches at the students' high school to proctor the quizzes and tests with a password limiting access known by the coach but not the students.
Mr. Frisch recognizes that an important component of the course is the building of community. To develop the sense of community in the online environment, the teacher encourages his students to create and develop their personal homepages in WebCT to share information about themselves. Extra credit points are given for this task. He encourages students to share their thoughts and findings on the electronic bulletin board, and to comment on each other's results. To reduce the feeling of distance, particularly between the teacher and the students, the teacher occasionally alternates his originating ICN site by traveling to the students' high school to conduct labs. When he is at one high school, he guides the students who demonstrate over the ICN so students at the other school can see their classmates doing physics. The ICN room with the demonstration becomes the originating site.
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The technical support that the teacher receives from Iowa Learning Online (ILO) is important. Mr. Frisch has flexible access to the ICN room near his office, which makes it easy for him to schedule appointments with his students. Technical support from IPTV as well as WebCT is also valued. For example, when one of the graphs failed to pop-up during a quiz, the teacher called for support, and the problem was quickly fixed.
ILO courses start one week after the school semester begins and end 16 weeks later, before the end of the school semester. Students are permitted to drop the course within the first two weeks without charge. Students go through an orientation to the course using email and WebCT. The teacher sends students the instructions to the "Getting started with WebCT" activity. Using the instructions, students log into WebCT and navigate through a series of activities that include each facet of the course, including assessing assignments, quizzes, the course calendar, submitting assignments, taking quizzes, and receiving and sending emails. Coaches are emailed the schedule of activities and required resources for the whole course during this orientation process. In this first year of ILO, students were recruited through advertisements in the press, regional meetings including conferences and word of mouth.
Thanks to Terry Frisch and Iowa Learning Online for their help.
This case developed by:
Niki Davis, Ph.D. and Lily Compton, M. A.
Center for Technology in Learning and Teaching
Iowa State University
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Case Studies
Web Links:
Physics Textbook: http://www.aw-bc.com/catalog/academic/product/0,1144,0321052021,00.html
The Cartoon Guide to Physics: http://www.harpercollins.com/global_scripts/product_catalog/book_xml.asp?isbn=0062731009
The Physics Classroom: http://www.physicsclassroom.com/Class/energy/U5L1a.html
Multimedia Physics Studio: http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/index.html
Riverdeep: http://www.riverdeep.com/index.jhtml
HowStuffWorks: http://www.howstuffworks.com/roller-coaster.htm
Amusement Parks Physics: http://www.learner.org/exhibits/parkphysics/index.html
Learner.org: http://www.learner.org/index.html
The Virginia Instructors of Physics Online Roller Coaster Lab: http://www.vast.org/vip/book/online_lab/DEFAULT.htm
Iowa Communications Network (ICN): http://www.icn.state.ia.us/
Iowa Public Television: http://www.iptv.org/
Iowa Learning Online: http://www.iowalearningonline.org/
Download free Adobe Reader: http://www.adobe.com/products/acrobat/readstep2.html
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