THE DEVELOPMENT OF ELECTRONIC-WORKSHEETS (E-WORKSHEETS) BASED ON CROSSWORDS GAMES WITH SUB-MATERIALS OF THE EXCRETORY SYSTEM TO IMPROVE THEMOTIVATION OF HIGH SCHOOL STUDENTS

Education in the 4.0 industrial revolution era has a curriculum that utilizes the internet of things (IoT) as a source or media in the learning process. Learning media that support is e-worksheet with crosswords games that will help students be motivated in the learning process. This study aims to develop a valid and practical e-worksheet based on crossword games with sub-materials Excretory System to improve learning motivation of students. This study is development research that uses the ASSURE model with steps: Analyze learners, State objectives, Select method, media, and materials, Utilize materials, Require learners’ performance and Evaluate/Revise. The e-worksheet research trial included 20 students of XI grades from Muhammadiyah 10 Gresik. Validity was determined by material experts, media experts, and a biology teacher at SMA Muhammadiyah 10 Gresik. The practicality of the e-worksheet was determined using students’ response questionnaire, students’ motivation questionnaire before and after using the product, implementation of motivation, and student activities. Validity and practicality data were analyzed using the descriptive quantitative. The result showed that the developed e-worksheet obtained an average validity percentage of 98.14% with very valid criteria. The practical e-worksheet obtained 93.5% of students’ responses, the increase in students’ motivation improvement from 60.1% to 86.8%, and 91.67% observation motivations implementation. The data that is received shows that e-worksheet based on crossword games are very valid and practical.


INTRODUCTION
Education in the 4.0 industrial revolution era is a phenomenon in which there is a need for the industrial revolution assistance by providing an appropriate curriculum.The changing times also affect changing simple technology into complicated and increasingly complex technology, so a technology-based curriculum is needed.The curriculum required is a curriculum that utilizes the internet of things (IoT) as a source or media in learning.The 2013 curriculum was created as a government effort for the community to achieve excellence in mastering technology.Due to the ongoing COVID-19, technological developments are urgently needed at this moment.Pandemic has made students' motivation decrease because students are required to study online.It is the same with the result of demands in the form of online learning with the occurrence of digital transformation from learning that does not require electronics to learning that relies on electronics (Iivari, 2020).The teacher must be capable of motivating students to learn with technology.
Innovation in developing a media that combines text, sound, images, animation, audio, and video through links or websites in biology learning is carried out to meet the needs of students (Sadikin, 2019).
Interviews conducted with one of the biology teachers at SMA Muhammadiyah 10 Gresik revealed that online learning of sub-materials Excretory System was carried out by some applications such as Moodle, Zoom meeting, and Powerpoint for giving the materials.Students tend to be passive and unmotivated because of limited learning materials and media while online learning on Excretory System.This indicates a lack of learning resources, learning materials, and media (Asma, 2020).
Excretory System materials for high school students have descriptive knowledge that includes structure, function, procedural process, and disorders of organs related to the Excretory System (Aini, 2017).Excretory System also has a few bioprocesses that need to be learned and understood by students.The excretory system that has happened inside the body can be seen by students, this is one of the problems because they got difficulty learning.The difficulty while students learn makes their motivation decrease.The teacher needs to use media learning to help students learn better in Excretory System material.This is accurate with Qumillaila's (2017) statement a series of processes that occur in the body makes it difficult for students to understand that a supporting tool such as technology is needed.Supporting tools that have the advantage of being able to help students motivated with pictures and videos for describing the bioprocess of the Excretory System.
Learning with e-worksheet media is one of the innovations of online learning.The changing innovation or learning will help students be motivated in the learning process.The Excretory System material has several bioprocesses to be detailed or explained in easy grammar to help students understand the materials.Easy grammar tends to help students on understanding and remembering concepts of the material that are given by the teacher.The pictures and videos on the e-worksheet will help students in the process of describing the bioprocesses that occur.A good presentation of learning media is media that is systematically arranged, has an attractive visual, efficient timing is right in the learning process, and provides concepts that are easily accepted by students (Wulandari, 2018).
Crossword games as an e-worksheet innovation in evaluation activities will help students to be interested in giving the right and correct answers.The sense of satisfaction that students feel after correctly answering the question helps to improve their intrinsic motivation.Crossword games are a learning technique based on the game that has the charm that can give a sense of pleasure and can do with various variations (Ningsih, 2020).Crossword games may be utilized as educational games to help students with material stability.Stabilization means that there are repeating materials that can make an easy way for students to remember and understand the materials.It fits the characteristics of crossword games, which are easy to be remembered because they present relatively short messages (Ratnasari, 2017).
The combination of the electronic worksheet and crossword games aims to assist teachers in providing a pleasant learning atmosphere with conducive conditions.Using e-worksheet based on crossword games is rather simple using HTML5, where students can do it anywhere using a cellphone or laptop.This study was conducted to help students become motivated in learning, especially in the Excretory System sub-material, by implementing an e-worksheet based on crossword games.The development data in the form of validity and practicality of the media were reviewed with the results of validation, the results of student responses, the results of learning motivation, and the implementation of student learning motivation.
The results of the validity of the media are known by being given a validation sheet which includes aspects of presentation, content, and linguistics assessed by two expert lecturers (material experts and media experts), and a biology teacher at SMA Muhammadiyah 10 Gresik.The assessment is carried out using a Likert scale on each aspect with a score from 1 to 4 scale rubric.
Validation analysis is known by using the following formula:
The practicality of the e-worksheet based on the crossword games was measured by the students' response questionnaires, student motivation questionnaire, and observation sheets from learning based on motivation.The motivation questionnaire was given to 20 students before and after learning with an e-worksheet based on crossword games.Students assess each aspect with a Likert scale rating from a score of 1-5.
Practical analysis based on motivation questionnaires can be measured by the following formula:

= 100%
The results of the percentage of motivation questionnaire are interpreted based on Table 1.The eworksheet media is identified as practical if the percentage of student motivation is ≥ 61% (Riduwan, 2016).Students' response questionnaires and observation sheets on the implementation of student learning motivation were carried out based on the Guttman scale.Guttman scale assessment used the criteria of "Yes" and "No" and the analysis was carried out using the following formula:

= 100%
The response questionnaire was assessed by 20 students after learning with an e-worksheet based on crossword games learning media.The response questionnaire is identified as practical if the resulting percentage reaches ≥ 70% (Sugiyono, 2013).
The assessment of the practicality of the e-worksheet was measured based on Table 2 The observation questionnaire on the implementation of students' learning motivation was assessed by 3 observes who were assessed during the research.The media is identified as practical with a motivation implementation observation questionnaire if the percentage generated is ≥ 70% (Sugiyono, 2013).The assessment is interpreted based on Table 3. Learning activity with e-worksheet was innovated with crossword games intended to help motivate students in learning.The e-worksheet based on crossword games contains the main cover of the e-worksheet, sub-cover eworksheet (Activity I and Activity II), forewords, instruction to use, indicator and purpose of learning Excretory System material, sections of e-worksheet (materials concept, did you know feature, and crosswords section), discussion section, and references.
The steps of making an e-worksheet have to do with an application called Photoshop for the design process, then save on PNG format and managed to become an electronic worksheet with the flipbook builder application.In the Flipbook build application, several interactive features are provided, such as attached videos, pictures, included hyperlinks to the crossword games, hyperlinks of google form that are needed for students to answer crosswords in JPG format, and hyperlinks for the answer of the discussion section.This application can make eworksheet become a website that will help students to get easier on using them.Visuals and features of the eworksheet are presented in Table 4. and also have different meanings behind it.The visual of the eworksheet can help students' interest feelings.The features can help students to get curiosity feelings while they are in the learning process.The activities that concluded on the e-worksheet can help students to easy to learn.The visuals of the eworksheet main cover were made by adding excretory system organs in the box.The square shape did represent the innovation of eworksheet in crossword games.

2.
Materials features were written with easy language and grammar that can help students to understand the concept.

3.
The crosswords section has a link that is attached with crossword games, this aims to evaluate students about the sub-materials Excretory System.4.
Did You Know feature has videos as an extra knowledge about the excretory system?Videos that were added are experiments and problems on the organ of the excretory system that can be played directly on an e-worksheet without opening another window.

5.
The discussion section has a feature that gives 3 organ excretory system problems that were common in society.A group of students was made to analyze the problems.
The crosswords of the electronic worksheet were made by an application called Eclipse crossword then managed to become a link and then added to the eworksheet.Visuals of the crosswords have a simple and clear design that is present in Table 5.

No
Visuals and Description 1.
Crosswords have clear presents of numbers and questions, so it is easy for students to do work.2.
'CEK JAWABAN' features can help students to know which answer is correct or wrong.

Validity of e-Worksheet Based on Crosswords
The validity of the e-worksheet was evaluated by 3 validators there is 2 validator professors and 1 biology teacher of high school.Validity of it is done to get a valid learning media for trial.Validity results from the validator also have some suggestions that the researcher can do some revisions about it.Table 6.Recapitulation of revision results on e-worksheet based on crosswords

1.
There are a few questions of crosswords that are not enough to reach the basic competencies of the submaterials Excretory System The question already changed into questions that are equal to submaterials Excretory System basic competencies.

2.
Concepts of human bioprocess of urine need to be more specific Concepts have been written more specific, detailed, and clear than before.

3.
The number needed on the crossword games.
The number has already been added to crossword games.

4.
Needed an answer key and discussion for students The answer key was shared with google doc after the learning process The suggestion was given by three validators on the different aspects.The question that was not achieving basic competence or indicators of sub-materials Excretory System already changed by the researcher.The bioprocess of excretory already changed into a clear and detailed explanation.This can help students to understand the concept of the materials.The materials contain fact, concept, principle, and relevant procedures which has a systematically learning purpose regarding materials sequence that will affect learning media or products validity (Putra, 2018).Furthermore, the question with HOTS (Higher-order Thinking) or C4 cognitive level can also help students to think and resolve problems in their lives with related problems.This same as Ariyana's (2018) statement, that learning a HOTS level in it can motivate students to study the problems until they got the solution after reading the materials from pictures, videos, short descriptions, and others.The results of validity data have 9 aspects that are present in Table 7. as recapitulation results of validity media.The average of whole validation aspects has 3.93 which means the e-worksheet based on crossword games is very valid.This means that researchers can do trials.The validity of every aspect of the e-worksheet will helps in the trial of the research.Systematically presence of the e-worksheet must be consistent, conceptualized in the right order, and have the appropriate material concept (Khafida, 2021).In addition, several supporters of the feasibility of presenting an e-worksheet such as images, colors, layouts, and attractive designs as well as structuring the writing language were carried out to assist in increasing student interest and motivation during learning.Moreover, several supported for appropriateness of e-worksheet such as pictures, colors, layout, and attractive design also arranged writing can do as help increase students' motivation while they did learning.
The function of using an e-worksheet based on crossword games can help students to get enthusiastic about learning.The raising of students' competence will happen because there is an innovation in the game's form of crosswords (Susanti, 2020).

Practically of e-Worksheet Based on Crosswords
Practical e-worksheet was reviewed by students' motivation questionnaire, students' response questionnaire, and observation from the learning motivation sheet.

a. Learning Motivation Students
The results of the motivation questionnaire that was given to students can be indicated as practical if the percentage measured ≥ 61%.Recapitulation results of motivation before and after students did learning with eworksheet based on crosswords in The results motivation average before using an eworksheet based on crosswords has 60.1% indicating that students have enough motivation to do learning.The increase did happen after learning that using an eworksheet based on crosswords within 86.8% was a very strong motivation criterion.The improvement of students' motivation makes the media practical to be learning media to students learning with Excretory System material.
Crossword games as an innovation of e-worksheet were made to assist students in learning to be motivated.This accordance with supported statements that crosswords can give stimulation to students for being competitive to be a winner which they need to fill all squares within the right answer (Adan, 2020).Competitive feelings to be a winner can also help by motivating students to get the right answer so they can be the winner.The squares of the crossword games also can be wrong.So that, teachers can observe how many correct and wrong students answer on crosswords.The scores also can give students stimulation for being competitive in games.

b. Students Response
The response that was given by students has a positive response.Students actively asking during the learning process using the media can be meant that they did start to get interested in the media.The results recapitulation is displayed in Table 9.Which shows that an e-worksheet based on crosswords is practical.Based on Table 9.It can be indicated that the eworksheet based on crosswords is included in the very practical within 93.5%.Students gave a few responses about how easy the e-worksheet is to use and how attractive the visual is.Media e-worksheet can help increase students learning motivation due to how eworksheet was made; which are interesting, interactive, and easy to use (Nuzulia, 2016).The visual of the eworksheet is cool and unique they said.It is really different from the other e-worksheet were just looking odd in the color, text style, and pictures.The text that was written about the material also helps students to get the answer to play crossword games.
The presentation of e-worksheet based on crossword games is the lowest because the times that were given when playing the crossword games do need more.Crosswords have a higher level of HOTS, which is students must give the right solution to problems and the square of crosswords can be filled in.

c. Learning Motivation Observation
The media can be practical in learning motivation.The observation was evaluated by 3 observers, who did it during the research.Table 10. is presenting a recapitulation of observation results.The average of motivation learning observation as motivation's Uno (2010) has 91.67% with the very practical category.Motivation indicators include: the desire and urge to succeed, encouragement and need for learning, hopes and aspirations, interesting activities in learning, and a conducive learning environment (Uno, 2010).The students were doing the e-worksheet all activity which means that e-worksheet based on crossword games is very practical.The activities which got very practical are because the visual was on point, the text was written clearly, the pictures are related, and the videos that were added are new to them so they get interested in them.This meant students get helped by the visuals and features of the e-worksheet based crossword games.The characteristic of an e-worksheet can visualize the human excretory system that considered difficult because much of the theoretical and conceptual material needed to be thoroughly understood (Nisa, 2021).
There is some point where the activity got enough motivation.It might happen because the level of crossword games question needed more time to solve, but the time is limited.Recapitulation of motivation learning observation based on motivation indicators by Uno was displayed detailed in Table 11.The practical category indicated that students did motivate while learning.The innovation in the media within the correct learning model and students learning interests can increase students' motivation (Sugihartini, 2017).An independent urge to achieve the goal of learning makes students can do all the activities of the eworksheet.
Innovation with crosswords inside the e-worksheet can increase motivation with features like the submaterials concept, pictures, and videos.Crosswords can increase thinking ability, and concentration, and provide a pleasant learning atmosphere (Irma, 2020).There is an effect to increase student interest that can make ambition to have a high score.The increase in student interest is due to the student's attention to the learning.

CLOSING Conclusion
This development research on e-worksheet based on crossword games obtained valid and practical based on the research's data.The results of the study conclude that e-worksheet based on crossword games can increase students' motivation while learning Excretory System material.This study concludes that e-worksheet based crossword games can be used as a learning media for Excretory System material for high school students.

Suggestion
The use of an e-worksheet based on crossword games requires more time to work due to the cognitive level of analytical crossword questions.
ejournal.unesa.ac.id/index.php/bioeduIndiarti Dwi Fina: e-Worksheet Crosswords for Motivation 693 METHOD This study is development research using the ASSURE method that has 6 steps, there is: step Analyze learners, State objectives, Select method, media, and materials, Utilize materials, Require learner's performance, and Evaluate/Revise.The e-worksheet based on crossword games was tested on 20 students of XI grade Science from SMA Muhammadiyah 10 Gresik who have the same level of knowledge regarding the Excretory System material.The object of this study is an e-worksheet based on crossword games.The subjects of this study are 20 high school students in XI grade.

Table 1 .
Interpretation of students learning motivation

Table 2 .
. Interpretation of practical students' response

Table 3 .
Interpretation of practical motivation learning RESULT AND DISCUSSIONThis development research aims to produce a valid and practical e-worksheet based on crossword games to increase students' learning motivation on Excretory System material.Hal: 691-698 https://ejournal.unesa.ac.id/index.php/bioeduIndiarti Dwi Fina: e-Worksheet Crosswords for Motivation 694

Table 4 .
The visuals and features of the e-worksheet based on crosswords

Table 7 .
Recapitulation of Media Validity

Table 8 .
Recapitulation of Motivation Students

Table 9 .
Recapitulation of Students' Response Questionnaire

Table 10 .
Recapitulation of Motivation Learning Observation

Table 11 .
Recapitulation Based on Motivation Indicators