An Individualized Chemistry Teaching Trial via Video Lessons Supplemented with 3D Hands on Materials during Covid-19 Pandemic

Covid-19 Pandemic had a dramatic effect on practicing everyday

routines including education. Due to the fatality the virus, schools are forced

to close and in many cases remote teaching has become a necessity. Although,

online teaching provides some solutions to the educational problems in

difficult times such as pandemic, natural disasters or people who lives in

remote areas, it does not develop still for the full capacity to meet the all

challenges of distance education. Therefore, there still a way to go for

effective online education. One of the most important challenges of online

education is the aces to the hands on activities which we have in face to face

education. In order to overcome this problem, we aimed in this study to

investigate the possibility of using developing hands on supplementary

materials and implement in during individualized education settings during

Covid-19 pandemic to teach symbolic language of the chemistry in high school.

It is hard to keep students’ motivation and interest high towards chemistry in

distance education. We thought providing supplementary hands on materials to

students may enhance their motivation and interest towards chemistry and this

may result more effective learning in individualized learning environment for

the high school students. Within this framework, this study particularly aimed

at examining the effect of video lessons supplemented with 3D hands on

materials on strong intramolecular interactions to ninth grade students in an individualized

instruction trial during Covid-19 lockdowns.<o:p></o:p>

The design-based research approach has been implemented in

development of the 3D instructional supplementary materials while the

effectiveness study was designed as an intervention mixed design. Design-based

research combines teaching methods and techniques with designed teaching

materials and activities and produces products that have meet the teaching

needs. In addition, it is a method that enables the emergence of effective

teaching materials by making necessary evaluations in the application and

analysis of the designs that are related to learning theories and will be

developed in the research. This method is used in the design phase and will

help to create practical designs that can be used to describe the symbolic

language of chemistry by eliminating the deficiencies of the materials to be

designed. In the implementation phase, mixed research design with intervention

was used. This design is a research that provides a solution to the identified

problem by adding qualitative data to the research process by implementing an

intervention (experiment/treatment) program. During investigating the effectiveness

of the teaching qualitative data were also used to better understand the

effectiveness of the materials and their effect on success, as well as

quantitative data.<o:p></o:p>

The study group of the research consists of five students and four

parents. After the materials designed and developed, produced with 3D printers,

and educational videos supporting them are prepared, a pre-test is given to

five students in the treatment group. The application has started with the

delivery of materials and videos to the students. The students have tried to

learn the subject on their own, that is, individually, by watching three videos

and using 18 supplementary 3Dmaterials. The process is completed with the application

of the post-test at the end of the application and the interviews with the

students and their parents took place. Pre and posttest data were subjected to

the gain score analysis and the interview data were content analyzed. The results

showed that video lessons supplemented with 3D materials are enhanced students’

understanding and long-term retention of the subject learned as well as

improved visual and spatial abilities. 3D supplementary materials embody

abstract concepts in chemistry. The results will be further discussed in the

presentation. <o:p></o:p>