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Image Processing for Teaching (IPT) in Science Classrooms

Kadriye O Lewis

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RESULTS AND FINDINGS
The teacher's IPT experience and application
Ms. Rose, who began using IPT in 1998, had five-month's experience using this technology when the study began. Ms. Rose explained that even though she had used IPT in the computer lab and in the classroom as a teacher demonstration tool, introductory tool, assessment tool and visual images concepts, she was still continuing to investigate how to use it in the most effective way in her classroom. Noted Ms. Rose:

"When we were doing Sound Waves, as an example, there is an image that shows both the crest it went through very well, we were able to cut through and do a plot. This became a teacher type of demo I used it that way, where I could demonstrate visual images of a concept (I: CPS: Ms. Rose, p.2). When I did the counter map section, we used IPT as an introductory aspect, did a little bit more work outside of the computer framework, and then I went back in and started using it as an assessment tool" (TI: CPS: Ms. Rose, p.3).

Ms. Rose varies the way she uses IPT depending on the nature of the activities. She may have the students work in pairs on one computer, or she may have the students in small groups or sometimes she demonstrated the IPT activity in front of the whole class. She usually utilizes curriculum related IPT activities. She also uses the tools in IPT to design her own activities. For example, she designed a Sun Dial activity to show her students the relationships between sun and time.

Information gathering

Most of the time Ms. Rose prepared activity sheets for the data collection for her students. This was helpful for the students when they started to make conclusions and draw inferences from their data. Ms. Rose said:

"…It is a State objective…All of the data are right there…if we are doing measurements, there is a measuring table that will store the measurement for them. But I'm finding my kids do better with paper and pencil in front of them, so I have them transfer from that table to the actual table there. The other thing is reality. The Ohio State requires students to develop their own charts, their own graphs, and their own tables rather than computer programs develop them. So, this actually allows them to get the data and report it, then do a chart or table on their own" (TI: CPS: Ms. Rose, p.7).

Using activity sheets was a good way to report and track students' responses from both the teacher's and the students' sides. When the students finished with the task, Ms. Rose collected the activity sheets for evaluation purposes. At the same time she was meeting the state's objectives that require the students to gather data and report information.

Ms. Rose also designed and created an activity "Sun Dial" using the
drawing program, which is part of IPT. Ms. Rose said:

"…. [It] was one of the activities I designed…. I animated it. It was in the middle of winter; normally I would take the kids outside to do a living sundial program. Because of the weather condition we could not do that, so I supplemented this with what I would normally do and used the program that way" (TI: CPS: Ms. Rose, p.2).

The students' background in technology and IPT

According to a computer background questionnaire, all students in the class were computer literate. Ms Rose also stated that her students were familiar with technology and most of the software related to the seventh grade. However, most of the students were confused regarding the use of computers and an understanding of the IPT software. The students' perception of IPT was not related to the images, but the computer program itself. This was not surprising at all since the IPT Technology was new to these students and the teacher. To get correct information from my interviewees I reminded them of the names of the activities in IPT and of the terms I used during my interviews.

Problems encountered in implementation of IPT

Class A had completed seven activities in earth science, biology, physics and math during my data collection. These activities were Devil's Tower in 3-D, An Eagle's - Eye View, It's Just a Phase: Observing the Moon's Cycles (Earth & Space Science), Polygon Patterns (Math), Roller Coaster, Wave Watching (Physics), and Animal Hands (Biology). Ms. Rose defined the activities according to the difficulty level of her students. They sometimes had difficulty following the steps. Therefore, Ms. Rose prepared handouts for the students. She gave me an example of the instruction sheet of step by step directions. One of the interviewees also clearly defined that their teacher usually worked on complicated activities before or after class to determine if there were any problems. When they used that activity the teacher told the students how to avoid the problems or work through them. My third observation, the class was working on how to construct a "Contour Map" Ms. Rose was warning the students:

"Don't use the whole screen since the computer doesn't have enough memory to handle the whole screen (FN-6: CPS: Computer Lab 1: 11-15). …Pay attention the color of the brush, which should be black. If your brush is white, you can't see the background since it is white (FN-6: CPS: Computer Lab 2: 2-3). If you are not good with a mouse, be careful and don't be so close to the boundary you draw" (FN-6: CPS: Computer Lab 2: 9-10).

The students did not have difficulty using the software, because of the teacher's hints and step by step directions for some of the activities. Due to their short time experience with IPT, students were not very comfortable in the use of IPT as the teacher explained that "the IPT software is not user friendly and it is basically a teacher-oriented design." During my interview Ms. Rose strongly emphasized that the user interface of IPT was frustrating describing some of the activities as complicated regarding the steps to be followed. This resulted in the time consuming effort of writing her own directed lessons. She accounted her frustrations saying:

"It is not student friendly at all. This is very much a teacher-oriented
program. It doesn't have self-guides or checks in it that keeps kids from getting into things…. In some of the activities they have to go through so many different steps that it gets to be confusing. …. I don't think the program is set up real well for the teachers to write her own directed lesson" (TI: CPS: Ms. Rose, p.5).

For example, in the activity Roller Coaster, in order for the students to be able to follow the activity independently, her effort to redesign the students' directions proved to be a difficult task. In the end, she opted to present this material as a whole class activity with discussion as the activity proceeded.

In addition to software implementation problems, they sometimes had technological problems with individual computers or the entire system. Mr. Admon, the technology coordinator, was the support personnel responsible for system failures and other issues. On the day I was going to do my second observation, we had some technological difficulties.

Today is Tuesday and I am supposed to do my second class observation. When I got home, I found a message on my voice mail both at home and on my office telephone. It was from Ms. Rose. Her message: "This is Ms. Rose over at CPS. I left the same message at UC, too. The computer system and network is down right now. It seems it will be down this afternoon, too. If we reschedule you for Thursday, then show up on Thursday. Talk to you later, bye" (FN-5: p.5).

When we were talking about technology problems during the interview
Ms Rose stated:

"Technology in itself though can be frustrating 'it's gonna go wrong' like Murphy's law. 'It's gonna go wrong,' plan on it going wrong when you don't want it too" (TI: CPS: Ms. Rose, p.18).

Effects on science teaching and learning

The students I interviewed identified that the advantage of using the IPT software was a different way of being able to visually view real life images. Seels (1994) refers to visual learning as the acquisition and construction of the knowledge as a result of interaction with visual phenomenon (Moore & Dwyer, 1994; Seels, B. A. p. 107). In IPT images the values and meaning are embedded in the images, so the students derive the meaning from the visual information. It is easy to convey meaning through visual instruction. While students learn things visually they also improve their visual thinking skills. Seels (1994) describes visual thinking as the internal reaction stage that involves more manipulation of mental imagery and more sensory and emotional association than other stages of visually learning (Moore & Dwyer, 1994; Seels, 1994, p. 104).

Most of the students used computers to learn science before, but two of them were using it for the first time. Except for one student, none of them had used digital images. Although these students did not have a basic knowledge of digital images, all of them pointed out that computer-based instruction made learning easier, more visual and enjoyable.

Jenny says "…makes learning easier and faster because computer images help us better build pictures and graphics in our minds and heads" (SI-3: CPS: Jenny, p. 1).

Andy says "…. Easier, because if it is more on the paper, it is boring. It is more fun on the computer. I think I'm more interested in learning on the computer" (SI-5: CPS: Andy, p. 2).

Sue says "…. Makes it easier because it gives you pictures instead of reading it out of the book, so giving visual images. In reading you have to picture it in your head, if you don't draw picture right, you may get different picture in your head" (SI-6: CPS: Sue, p. 2).

Ms. Rose believes that students need visual images to learn. She says:

"…. Most of our students need some kind of visual images. We hook
onto that new data based on how we interpret, how we learn, how we store memory, how we hook it on something we already have. They come with limited past experiences and visual images give them something to hook the rest of the stuff they have already known" (TI: CPS: Ms. Rose, p.9).

She approached learning through constructivism and also believed that the child who is unable to learn with abstracts, or who cannot develop abstract concepts or abstract ideas benefited most from the IPT technology. She also pointed out that the activities in the IPT software were designed as hands-on activities, therefore, giving students experiences and opportunities to construct their learning.

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Meridian: A Middle School Computer Technologies Journal
a service of NC State University, Raleigh, NC
Volume 8, Issue 1, Winter 2005
ISSN 1097 9778
URL: http://www.ncsu.edu/meridian/sum2002/ipt/3.html
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