Feasibility Test of Vlog Media Development With A Science-Edutaiment Approach

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INTRODUCTION
Natural Sciences (IPA) is a scientific discipline that studies natural phenomena with the scientific method that produces reliable facts (Trianto, 2015) Science as one of the fields of science that must be mastered by students because science is a science that cannot be separated from everyday life. The science learning process can be held interactively, inspiring, fun, challenging, motivating students to be more active in participating, and providing sufficient space for initiative, creativity and independence according to interests, talents and students' physical and psychological development.
Video Blog is a blog that contains stories, experiences, advice or anything through video content which is often referred to as VLog (Schmittauer, 2017). VLog is a combination of video and blog (blog itself is a combination of web and log). VLog is a form of expression of thoughts, opinions, or experiences that are recorded into a film or video and published online via the internet (Chandra, 2017). According to the opinion of (Fidan & Debbağ, 2018) VLog is a video composed of several types of media, namely audio, visual and text that can be easily accessed with mobile devices. Based on some of the opinions above, it can be concluded that VLog is a video-blog that contains expressions of thoughts, opinions, or experiences that can be accessed with mobile devices that have been published online.
The Science-Edutainment approach brings students to learn with entertainment or fun nuances but does not deviate from the learning objectives (Abdan, 2014). Through fun nuanced learning, it is hoped that students can happily and easily understand learning without pressure. Fun nuances can be created with activities, media or teaching materials used by teachers during learning.
Learning media is a tool used to make it easier to convey learning (Taufiq, Dewi, & Widiyatmoko, 2014). Students tend to be interested in learning by using audio-visual media (Fitriyani & Wiyatmo, 2017). In facilitating the achievement of national education goals, an innovation is needed, including both learning strategies and learning media as learning materials used in accordance with Law no. 20 of 2003 (Budiarso, 2016). Therefore, the selection of VLog-based learning media (video blog) is very appropriate in addition to being easy to use, easy to access anytime and anywhere by students. VLog (video blog) is a video-based blog that includes text, sound, video or images (Fidan & Debbağ, 2018). Through visualization, it is easier for students to understand the learning they are doing.
This study aims to determine the differences and increase in understanding of concepts after learning using VLog media with a science-edutainment approach in science learning with the material of the solar system.

METHOD
This research includes the type of research and development or Research and Development (R&D). This study uses the ADDIE development model. The ADDIE model consists of five stages, namely analysis (analysis), design (design), development (development), implementation (implementation), evaluation (evaluation). The development design uses the ADDIE model shown in Figure 1. Validity test is used to get the level of validity of an instrument. The validity test in the development of VLOG media was carried out by 3 experts who were experts in their respective fields, namely as media experts, as material experts, and as science teachers at Public Junior High School 5 Bangkalan. The validity test can use Aiken's V statistical calculations (Hendryadi, 2017) with the following equation. The instrument validity criteria can be seen in The reliability test in this study used the Borich method known as the Precentage Agreement (PA). According to Borich, the instrument is reliable if the percentage value obtained is more or equal to 75% (Viana & Subroto, 2016). The reliability test equation according to Borich is as follows: : Higher Score side given B : Lower Score side given The instrument validity criteria can be seen in table 2 Very reliable Arikunto in (Viana & Subroto, 2016)

Define stage
The results of research conducted at SMP Negeri 5 Bangkalan. The learning material used in the VLog learning media is the solar system.

Design stage
This stage provides a research instrument in the form of a validation sheet on the media developed for expert validators and natural science teachers for class VII G SMP Ngeri 5 Bangkalan. The display of the VLog media product can be seen in the figure 3 and 4 Lake Kasboyo is located in

Development stage
The development or development stage, in this third stage, is essentially the activity of translating design specifications into physical form, so as to produce development products. This stage consists of validating material experts and teachers of SMP Negeri 5 Bangkalan.

Implementation Stage
The results of the development are applied in learning to students to determine the effect on students' understanding of concepts. Material experts, device experts, and science teachers are given products to determine the feasibility level of the VLog learning media. After being validated then analyzed and revised.

Revision
Follow Up a. Sun Session before entitled ebelum ada Judul b. Entitled in every session The validation of the VLog media was carried out by four experts, namely media experts, material experts and concept understanding tests, device experts and junior high school science teachers. The media expert is Mr. M. Afif Effendi S. Kom. M.T., material expert and concept understanding test, namely Mr. Mochammad Ahied, S.Si., M.Sc., device expert namely Mrs. Wiwin Puspita Hadi, S.Si., M.Pd. and a junior high school science teacher, Mrs. Sulistyowati S.Pd.

Media Feasibility Test
The VLog media feasibility test aims to collect data from respondents, namely media experts and teachers of SMP Negeri 5 Bangkalan. The data is then processed to obtain results on the feasibility of the media. Aspects that must be validated by the validator include functions and benefits, visual media, audio media, typography and language. The validation results were analyzed using formulas 1 and 2 can be seen in Table 7.. The results of the media feasibility recapitulation are also depicted through a bar chart which can be seen in Figure 5. Based on the results of the media feasibility test analysis on VLog media with the science-edutainment approach, the media validation average shows a value of 78.6% which can be seen in table 3 and includes into appropriate criteria for use with minor revisions. The overall reliability value shows a value of 89.234% which can be seen in table 7 and is included in the very reliable criteria. Based on this analysis, it is known that VLog is feasible to be used in the learning process in 7 th Grade Public Junior High School 5 Bangkalan on solar system material.

Material Feasibility Test
Testing the feasibility of the material in the VLog media aims to collect data from respondents, namely material experts and teachers of SMP Negeri 5 Bangkalan. The data is then processed to obtain results on the feasibility of the media. Aspects that must be validated by the validator include functions and benefits, visual media, audio media, typography and language. The validation results can be seen in Table 8. Based on the results of the analysis of the material feasibility test on VLog media, the average percentage of material validation on VLog material shows a value of 92% which can be seen in table 3 and is included in the very valid criteria and is suitable for use without revision. The overall reliability value shows a value of 96% which can be seen in table 3 and is included in the very reliable criteria. Based on this analysis, it is known that the material contained in the VLog media is suitable for use in the learning process in class VII-G UPTD SMP Negeri 5 Bangkalan on the material of the solar system. The results of the material feasibility recapitulation are also depicted through a bar chart which can be seen in Figure  6.

Evaluation Stage
The stages of developing the ADDIE mode carry out an evaluation stage to optimize the VLog learning media on students' learning motivation and understanding of concepts. This evaluation stage uses summative evaluation to determine the effect on student motivation and understanding of students' concepts. This stage is the result of the analysis of the feasibility test by expert validators and the results of student responses at the implementation stage. The results of the data analysis are used as a guide to determine the feasibility of VLog media with a science-edutainment approach.
The results of the VLog media feasibility test with a science-edutainment approach to increase learning motivation and understanding of concepts consist of validity tests and rehabilitation tests carried out by experts, namely media, material experts, device experts and UPTD teachers at SMP Negeri 5 Bangkalan. A product is said to be feasible if the value is 0.61 V 0.80 (Rahmawati & Supramono, 2015) Meanwhile, according to Borich in Viana and Subroto (2016) an instrument is declared good if the percentage value of reliability obtained is more or equal to 75%. Based on the data from the media feasibility test in table 3 by media experts and UPTD teachers of SMP Negeri 5 Bangkalan, it shows that VLog media is feasible to use without revision with an average validity percentage of 78.6%. The reliability results of the VLog media feasibility test are also of good value with an average percentage of 89.2% as shown in table 7.
The feasibility test of VLog media is reviewed from five aspects, namely functions and benefits, visual media, audio media, typography and language. Based on the data recapitulation, the validity of the function and benefit aspects get a value of 75% with a reliability value of 93% which can be seen in table 7. These results show that the aspects of the function and benefits of Vlog media are feasible to use without revision. The use of media with technology that involves students can increase the level of student understanding (La Caze, 2017).
Based on table 3 the visual aspect of the media got a validity value of 93% with very valid criteria and a reliability value of 100% with very reliable criteria. This shows that the visual media on VLog media is good or feasible to use without revision. Good visual media will be easy to attract students to learn. In accordance with what was said (Arsyad, 2014) the use of teaching media in the learning process can generate new desires and interests, generate motivation and stimulate learning activities.
Based on the audio aspect of the media, the validity value is 79% in the valid category and the reliability value is 89% in the very reliable category. This is in accordance with the opinion (Fidan & Debbağ, 2018) regarding VLog in the form of videos composed of several types of media, namely audio, visual and text that can be easily accessed with mobile devices. The good audio and visual, the more it attracts students' attention and students' learning motivation and understanding of concepts increases.
Based on the typography aspect, it got a validity value of 75% with a valid category and a reliability value of 76% with a reliable category. Accuracy in choosing letters is one of the factors that need to be considered in designing VLog media. According to Sihombing in (Sulistiyawati, Prabowo, Ihya, & Ulumuddin, 2017) typography has a very important role in determining the success of a form of visual communication. This also affects the visuals of the VLog media which can convey messages in a clear and easy-to-read form.
Factors that need to be considered in making VLog media are language, in VLog the language used is easily understood by students.

Figure 6. Bar Chart Material Feasibility Rating Percentage
Based on the language aspect, it gets a validity value of 71% with a valid category and a reliability value of 88% with a very reliable category. As explained by Smaldino, Lowther & Russell in (Risabethe & Astuti, 2017) the use of ageappropriate language will meet the quality standards of technology and learning media. This means that the VLog media uses language that is easily understood and understood by ageappropriate students. Material validation assessment includes 3 aspects, namely the feasibility of content, presentation and language. Based on table 8 the feasibility of the material gets a validity value of 92% with a very valid category and a reliability value of 96% with very reliable criteria.
Based on table 4, the content feasibility aspect gets a validity value of 83% with very valid criteria and a reliability value of 94% with a very reliable category. This shows that the content of the material is in accordance with the Core Competencies and Basic Competencies used and is suitable for use as a learning resource. The material used is science material for class VII, KD 3.11. Analyzing the solar system, the rotation and revolution of the earth, the rotation and revolution of the moon, and their impact on life on earth.
Based on table 4, the appearance feasibility aspect got a validity value of 93% with very valid criteria and a reliability value of 94% with very reliable criteria. This shows that the presentation of the material on the VLog media has been presented well. Presentation of material using media will make it easier for teachers to convey learning and attract students' attention and interest in learning (Arsyad, 2014).
Based on table 4, the language aspect gets a validity value of 100% with very valid criteria and a reliability value of 100% with very reliable criteria. This shows that the language used in VLog media to convey material on the solar system is easy to understand and understand by students. The choice of language must also be age-appropriate with students so that students can more easily digest the material presented (Risabethe & Astuti, 2017).

CONCLUSION
VLog media with a science-edutainment approach is appropriate to be used as a learning medium on the material of the solar system. The average results of the product feasibility test are 85.3% with media feasibility 78.6%, and material feasibility 92%. The feasibility test on the VLog media product obtained very valid criteria, which means that it is suitable for use in science learning with solar system material.