Development of Android-Based Starter Motor Learning Media for Improving Students 'Abilities and Knowing its Learning Motivated Achievements

This study aims to develop Android-based learning media to improve students' abilities regarding the reduction type starter motor system and to determine the acquisition of learning motivation. The method used is pre-experimental design in the form of one-group pretest-posttest, while media development uses the ADDIE method. The population of this study were students who contracted electricity courses. The results of this study indicate an increase in the learning outcomes of the Pre-Test and Post-Test which is significant with the acquisition of the significance test using the t test with a significance value of 0.000, this increase is due to the use of android-based learning media that has been made. So that this learning media has a good impact on increasing students' insight in using technology, especially Android for learning uses. In addition, the students' learning motivation on average is in the category motivated by this media.


INTRODUCTION
Education is an activity that is carried out throughout life by each individual without discriminating in a discriminatory manner, so that education must be able to cover all the needs of its students according to the characteristics of each individual [1].
In order to control the quality of education, an educator must be able to innovate in carrying it out.The Covid 19 Pandemic period forced educators and students not to do direct learning, in accordance with government policies that prohibit the education process from being carried out directly (face-to-face), the government established a policy that Teaching and Learning Process must be done online [2].
This policy forces an educator to use media that can be done online, meaning that educators must use digital media so that it can be done online in accordance with government regulations, thus digital media must be able to provide the needs of students in learning, be it in the form of teaching materials, methods, as well as various teaching media.The point is that digital media must be efficient so that students can communicate creatively and rationally and think critically [3].Learning media are methods and techniques used to communicate between teachers and students so that the learning process becomes more effective [4].
The media used is important in PBM, because it can help educators and students achieve learning goals, namely learning success, there are two important things in PBM, namely learning methods and media [4].One of the teaching methods that can be used is to apply Blended Learning (BL) learning, several things that must be considered when creating the media that will be applied to BL, including the design of learning features (quality of technology, online tools, and face-to-face support).
nothing but to achieve the goal of education [5].
This pandemic period demands the application of a combination of learning media that can provide abilities to students.
The material presented here is the motor starter material which is an important component in a vehicle, with this device it will be easy to start the vehicle.

Learning outcomes
Learning outcomes / learning outcomes are educational technology terms to state student performance that can be measured by the instructor / teacher [10], The short definition is that learning outcomes are continuous changes in the aspects of knowledge, skills and attitudes as a result of one's involvement in learning activities [11].
In this study the learning outcomes are the values obtained by students from the tests given to them after they get the material presented by the resea rcher face-to-face online (through the media zoom meeting), then the delivery of the material is strengthened by providing material through material based on an android application.

Instructional Media
The word media comes from Latin, namely medius, which literally means middle, intermediary, or introduction.
According to Flemming [12] argued that "The media is often referred to as a mediator, Volume 6, Number 1, May 2021 ISSN 2528-2611, e-ISSN 2528-2700 namely the cause or tool that intervenes in two parties and reconciles them".According to [12] argues that "the word media comes from the Latin medius which literally means middle, intermediary or introduction".
According to Gerlach & Ely [12] "Media when it is understood in broad terms is human, material, or events that build conditions that enable students to acquire knowledge, skills, or attitudes.".
The conclusion that can be drawn from some of the definitions of learning media above is that learning media is a facility in the form of a tool used as a means of support in the teaching and learning process by teachers and students so that good, effective learning can be achieved.

Android Android-Based Learning Media
This media is a tool that can be used for the Teaching and Learning Process (PBM), which is included in audio-visual multimedia learning media, because it combines the process of hearing and seeing.The basis for this media is a combination of print and computer technology, so that it can be used by everyone wherever they are, this is because this media is based on an Android system application that can always be taken wherever people go.This learning media is categorized as a tool that combines print and computer technology [12].

Reduction Type Starter Motor
The starter motor is a necessary drive for the engine, because the engine cannot work independently but requires power from the initial propulsion.The starter is one of the engine electrical systems that supports the engine starting tool.The starter system, which is equipped on a motorized vehicle, functions to rotate the motorbike before the combustion process of the fuel-air mixture gas occurs by spark plugs in the motor's combustion chamber.The working principle of the starter system is to convert electrical energy into mechanical energy [13].

Media Development Method
This media is a tool that can be used for computer technology, so that it can be used by everyone wherever they are, this is because this media is based on an Android system application that can always be taken wherever people go.This learning media is categorized as a tool that combines print and computer technology [15].
The purpose of this ADDIE model is to help an educator teach according to his needs, an educator must analyze the material needed, design the appropriate media, to evaluate the material that has been given to his students to find out the knowledge gained [16].The following are the stages of this model:  The sample is a small part of the existing population, the number of samples that must be taken is 10-25% of the total population provided that the population is above 100 people [19].Meanwhile, if the number of samples is less than 100, then all samples must be taken, so the research is called census research or saturated samples [21].
So, the sample used in this study amounted to 39 students.

Instrument Validation
Validity is an assessment of whether or not a measuring instrument will be used in research in the form of an evaluative of the degree of trust that can be proven  while convergent validity tests the theoretically interrelated instruments [23].
The validity test is a test of the feasibility of measuring instruments to be used in this study, while the reliability test is a test that there is no error, there is no measurement error in a test or the instrument is used for measurement elsewhere [25].
The non-test instrument in addition to this research was also validated by material experts, besides that this research instrument was considered standard, because it was taken from a questionnaire that had been tested before validation.The acquisition of the learning motivation questionnaire is then compared with the motivation percentage scale as follows: Abnormal data [27].

Data Homogeneity Test
In addition to the data normality test, a homogeneity test is also needed which functions to see the proportion of samples having the same answer variation [25].

Researchers use the help of the SPSS 20 application to test homogeneity with
Homogeneous criteria if the significance value is more than 0.05 (sig> 0.05) and not homogeneous if the significance value is below 0.05 (sig <0.05) [27].

Significance Test (T-Test)
The criteria for the T test using the SPSS

Figure 1 .
Figure 1.Mind mapping motor starter of reduction type

the
Teaching and Learning Process (PBM), which is included in audio-visual multimedia learning media, because it combines the process of hearing and seeing.The basis for this media is a combination of print and Volume 6, Number 1, May 2021 ISSN 2528-2611, e-ISSN 2528-2700

Figure 4 .
Figure 4. Learning media based on android empirically and theoretically through tests (Messick, S., 1987:1).How well the data collected covers the actual investigation area, and can measure what will be measured in a study[22].

Figure 5 .
Figure 5. Types of validity tests[23] 20 application is that the data is said to have a significant change if the Sig value in the Paired Samples Test calculation results has a value below 0.05 (sig <0.05), on the other hand, if the acquisition is above 0, 05 (sig> 0.05) then the data is said to have no significant effect.Volume 6, Number 1, May 2021 ISSN 2528-2611, e-ISSN 2528-2700 RESULTS AND DISCUSSION Media The figure above shows that of the nine indicators, the results obtained are Very Good, namely there are four indicators (80%), while the remainder, namely one indicator, has a Good value (20%).So it can be concluded that the media created has met the requirements to be applied to the learning process, this is because all indicators in media assessment are categorized as good and can be used.

Figure 6 .
Figure 6.Percentage of media expert evaluation

Figure 7 .
Figure 7. Percentage of material content

Table 2 .
Motivation percentage scale

Table 5 .
Homogeneity test resultsThe criteria in the data significance test are said to have a significant change if the Sig value in the Paired Samples Test calculation results has a value below 0.05 (sig <0.05), on the other hand, if the acquisition is above 0.05 (sig> 0, 05) then the data is said to have no significant effect.The results obtained in this study are a significance value = 0.000, this means that the value is <0.05, it can be said that there is a significant difference between the PreTest and PostTest values caused by the treatment of providing Android-based learning media.