E-module development of lathe machinery engineering mechanical engineering expertise program

: Research objectives to: (1) Describe the process of developing e-module lathe machining techniques for class XI SMK. (2) Knowing the feasibility of e-module lathe machining techniques class XI SMK. This research includes a mixed type of qualitative and quantitative research called research and development (Research and Development). The development of this teaching material uses the 4D research and development model which consists of the define, design, development and dissemination. The subjects in this study consisted of material experts and media experts, namely PVTM UST Yogyakarta study program lecturers, as well as class XI students majoring in Mechanical Engineering SMK as users of the developed learning media. Data collection techniques using Google Forms and observation. Data analysis techniques use qualitative and quantitative descriptive approaches. (3) The results of this study are e-modules/electronic modules for lathe machining techniques. The e-module was declared good for use based on due diligence according to material experts with a total percentage of 79.7%, media experts with a total percentage of 77.9%, small group test results with a total percentage of 79.6% and large group trials with a total percentage of 83.6%. (4) Based on these data, the class XI lathe machining technique e-module is very suitable for use in learning.


INTRODUCTION
Education can be defined as a learning cycle that allows individuals to gain knowledge and understanding directly about various things as they go through the cycle.Legally obtained information about a person includes examples of their thinking and behavior that are consistent with the training they have received.Big Indonesian Dictionary (Dahlan, 2009).Education is an ongoing method of fulfilling basic needs in the context of scientific development for individual growth in a chosen direction and applies to lifelong learning.After that, take full responsibility for whatever is decided to do, whatever the consequences (Mad Noor Madjapuni, 2019).Learning inspiration has the capacity to act as a driving force for energy to carry out, decide the course of activities, and decide the strength of an activity.Inspiration drives a person to effectively achieve the goals they need to achieve.Inspiration is an idea that explains the explanation of one's actions.The low learning motivation of students is caused by a lack of innovation in learning media and a lack of innovation in the learning process.This is also one of the elements that contribute to the incompatibility of graduates' abilities with the demands of the industrial world (Choi et al., 2019) (Firman & Rahman, 2020).When a child lacks motivation, normal achievement is disrupted, and he is unlikely to achieve his learning goals.If this is not thought about, students will not learn anything.
As indicated by the gap in the quality of learners, this problem is undoubtedly influenced by a number of variables (Rabiman et al., 2020) (Bambang Sudarsono et al., 2021).These problems are definitely different from one student to another.This includes, the lack of involvement of students in the learning process in class, and the lack of ability of students to be motivated to learn.The process of gaining knowledge is used by teachers in teaching lathe machining techniques still using traditional methods, such as lectures and delivery procedures using Power Point presentations.The information provided is still incomplete, giving rise to many concerns.Students still have difficulty understanding the content of the material and pay less attention to the delivery of the material as instructed by the teacher.This causes students to become uninterested in the repetitive teaching and learning process (Rohman et al., 2020)(Astuti et al., 2021).Other reasons that contribute to this include the use of learning media that is less attractive to students, the creation of information that is not in accordance with the media used, and there are still concerns about how the material should be made.served.A large amount of research should be carried out on the use of instructional media to increase students' interest and motivate them to continue their education (Mandalika et al., 2018) (Lee et al., 2021 (Purnomo et al., 2018) (Otchia & Yamada, 2021).
Among the many variables that affect student performance are teaching materials, learning media, student skills, student excitement and motivation, student abilities, and learning techniques applied (Prasojo et al., 2018) (Sukarno, 2020).One form of way to provide quality learning is to utilize technology in learning.Along with the development of industrial technology 4.0, it demands that 21st century skills alone are not enough, but management of learning in social aspects and virtual learning must be considered (Handoyono & Rabiman, 2020) (Seo et al., 2021).
In an effort to utilize technology in the development of class XI lathe machining engineering emodules, with the aim of increasing the capacity to obtain information that is more creative.The need for the use of electronic modules in the form of interactive visual media to keep abreast of developments in information and communication technology.To arouse students' interest and curiosity about learning material, the e-module is packaged in an attractive way using communicative language, especially by including video material and images that are relevant to lathe machining engineering material in order to arouse enthusiasm and motivation of students to learn where anywhere and anytime.Define The defining stage is useful for determining and define the needs in the learning process and collect various information related to the product to be developed.This stage is divided into five stages, namely: a) Initial Analysis, at this stage to find out the basic problems in e-module development and initial diagnosis and determine the initial steps in developing e-modules that are suitable for development.b) Analysis of Learners, it is very important to do at the beginning of planning.Student analysis was carried out by observing the characteristics of students including age, academic ability, and learning motivation.c) Task Analysis, aims to identify the main tasks to be carried out by students to achieve competency.d) Concept Analysis, aims at the steps to be taken.Concept analysis is made in a learning concept map which will later be used as a means of achieving certain competencies.e) Analysis of Learning Objectives, carried out to determine the learning objectives that are expected to be achieved learning objectives.

METHOD
Design This design stage aims to design a lathe machining engineering e-module.The stages carried out include: a) Preparation of tests, based on the preparation of learning objectives which become a benchmark for students' abilities in the form of products, processes, psychomotor during and after learning activities.b) Selection of Media, carried out as the first action to determine the initial abilities of students.c) Selection of Format, carried out in the first step.Format selection is done so that the learning media chosen are in accordance with the material and characteristics of students.d) Preliminary Design, the preparation of the initial design aims to simulate the learning steps that have been designed.
Develop (Development) This development stage aims to produce e-modules that have been revised based on expert input and trials on students.There are the following steps: a) Media validation by experts.There are three experts involved in the validation process consisting of material experts (experts in related subject areas), media experts (learning technology experts), and learning outcome evaluation experts (teachers and students).b) Revision of the media from several expert inputs at the time of validation.c) Limited trial, adjusting to the actual situation that is happening.d) Revision of media based on limited trial results.e) Trials with a wider scale to find out the results of media revisions based on input from experts.
Disseminate After a limited trial and the instrument has been revised, the next stage is the dissemination stage.The aim of this stage is to disseminate the e-module.In this study, only limited dissemination was carried out, namely by disseminating the final product of the e-module in a limited manner to the lathe machining technique teacher at SMK.The next step is to socialize the results of the e-module development to students and teachers so that it can be used as a learning reference.Meanwhile, media that is still not feasible must be revised according to the steps above until it is suitable for use by students of the Mechanical Engineering Expertise Program at SMK.This data collection technique by means of questionnaires and observation.The purpose of collecting this data is to obtain information related to research.The data collection instrument consists of 3 instrument grids, namely: a) instrument grids for material experts.b) instrument grid for media experts.c) instrument grids for students.The large number of instrument grids for material experts from the lecturers of the PVTM Study Program at the Bachelor of Tamansiswa University, Yogyakarta, for the many media expert instrument grids from the lecturers of the PVTM Study Program, Ungraduate University Tamansiswa Yogyakarta and the number of instrument grids for students consists of class XI of the Mechanical Engineering Expertise Program SMK.
The data analysis technique used in this study is a qualitative descriptive analysis technique.This data analysis analyzes the feasibility of the module from the results of completing a questionnaire by media experts, material experts, and students' responses to the learning e-module.The results of the analysis of the data obtained are used as a reference in improving e-module development.Variable values measured by certain instruments can be in the form of numbers using this measurement scale.The result, will be more accurate, efficient, and communicative.The data in this study were analyzed Copyright © 2020, Jurnal Taman Vokasi, ISSN 2338-1825 (print) | ISSN 2579-4159 (online) using a Likert scale.The Likert scale is used to assess attitudes, opinions, and perceptions of a person or group of social phenomena.Variables that will be used as indicator variables.These indicators are then used as a starting point for compiling instrument items, which can be in the form of statements or questions.Instrument items are evaluated at intervals of 1-4 using the following criteria (Sugiyono 2015: 134) When used as a percentage, it can be formulated as:  The results of the media expert validation calculations consist of aspects of assessing suitability of size and typeface, term consistency, margin consistency, pages, letters, and spacing, image clarity, image layout, and benefits in learning.Media experts who act to give judgments are.Based on these problems, the learning media created are expected to be able to help students achieve learning goals.The hope of making this learning media is that it can increase student learning motivation so that the level of understanding of the material for lathe machining techniques becomes more optimal (Putra et al., 2019) (Gamizar Naufal Rafif et al., 2021).With this module's electronic learning media, students can learn about lathe machining techniques wherever and whenever (Zainul et al., 2018) (Ratnawati et al., 2020).This is because this e-module learning media can be accessed either by computer or smartphone and almost all students have it.

CONCLUSIONS
Based on the results of research and development it can be concluded that: 1.
The electronic development of the material module for lathe machining techniques was developed at SMK with a 4D research model consisting of four stages, namely: Define , Design , Develop and Disseminate .2.
The feasibility results of material experts on lathe machining technique learning media got an average overall score of 79.7% in the "Very Feasible" category.While the feasibility results from media experts on lathe machining technique learning media obtained an overall average score of 77.9%, which means it is included in the "Very Eligible" category.The response of the Mechanical Engineering Skills Competency students in the small-scale field test obtained a score of 79.6% which means it is in the "Very Eligible" category and finally in the large-scale field test it gets a score of 83.6% which means it is included in the "Very Eligible" category.".Based on these data, the "Very Eligible" lathe machining technique module is used in learning.

Figure 4 .
Figure 4. Graph of Percentage of Small Scale Trial Results The results of the large group trials include: (1) Conformity with KI, KD and syllabus; (2) Clarity of learning objectives; (3) Conformity with teaching materials; (4) text readability and communicative; (5) Material completeness and coherence; (6) Conformity of the image with the material; (7) Appropriate size and type of letters; (8) Consistency of terms; (9) Consistency of margins, pages, fonts, and spacing; (10) Image clarity; (11) Drawing layout; (12) Benefits in learning.This large group test was carried out to get input or suggestions from potential users.Respondents for this large group test were taken randomly as many as 31 students of class XI of the Mechanical Engineering Study Program, Dr. Vocational High School.Sutomo Temanggung.The percentage of large group test assessment data given by students is presented in the table below.Table 6.Large Group Validation Results

Figure 5 .
Figure 5. Graph of Percentage of Large-Scale Trial Results Automotive), and Industrial Chemistry (KI).The Mechanical Engineering Expertise Program is one of the leading Expertise Programs owned by SMK Dr.Sutomo Temanggung.The Mechanical Engineering Expertise Program at least accepts four to five classes in each batch in the new school year.As a leading expertise program, the Mechanical Engineering Expertise Program is expected to be able to produce graduates who are competent and ready to compete in the world of work with qualified knowledge and skills

Table 2 .
Table of Eligibility Criteria

Table 3 .
Results of Material Expert Validation Figure 2. Graph of Percentage of Material Expert Assessment

Table 4 .
Media expert validation results