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JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 63
e-Jurnal: http://doi.org/10.21009/1
Guided Inquiry Scratch Increase Students' Critical
Thinking Skills on the Linear Motion Concept: Can it be?
Nurhasan Ropi`i1,2,a), Wahyu Hardyanto3, Ellianawati3
1Physics Education, Graduate School, Universitas Negeri Semarang 50237, Indonesia
2Junior High School of Banjarharjo 1, Brebes 52265, Indonesia
3Department of Physics, Faculty of Mathematics and Sciences, Universitas Negeri Semarang 50229,
Indonesia
: a)nurhasanropii@gmail.com
Abstract
The 4C-oriented 21st-century competency education consists of critical thinking and problem
solving, creativity, communication skills, and Ability to Work Collaboratively. Guided inquiry
learning strategy combined with scratch technology is needed to train students' critical thinking
skills. The study aims to determine the improvement of students' critical thinking skills after
being given Guided Inquiry assisted by Scratch media on the Linear Motion concept. The quasi-
experimental study with the design of one group pre-post test design was conducted in class VIII
B of SMP Negeri 1 Banjarharjo in the academic year 2018/2019. The pre-test results showed
that 16.67% of students were categorized quite critical to very critical and 83.33% of students
in the less critical category were not even critical. The post-test results showed that 91.66% of
students were categorized quite critical to very critical and 8.34% of students in the less critical
category were not even critical. The results of data analysis also showed an increase in students'
critical thinking skills by 0.56 with moderate criteria. The application of guided inquiry learning
assisted by scratch media can train and increase students' critical thinking skills on the concept
of linear motion.
Keywords: guided inquiry scratch, critical thinking skills, linear motion concept
INTRODUCTION
The 4C-oriented 21st-century competency education consists of Critical Thinking and Problem
Solving, Creativity, Communication Skills, and Ability to Work Collaboratively (P21 2015). 4C
competency is achieved through an effective, continuous learning process and involves the active
participation of students. Teaching strategies that involve the participation of students in the learning
process through scientific inquiry are more likely to enhance conceptual understanding than strategies
that rely on more passive techniques, which are often needed in an educational environment that is full
of judgment (Minner et al. 2010). The active involvement of students in learning activities can be done
through the application of strategies, models and inquiry-based learning methods.
An inquiry is defined as a series of processes to diagnose problems, criticize experiments,
distinguish alternatives, plan investigations, examine the allegations, find information, build models,
debate with peers, and form coherent arguments (Vlassi et al. 2013). Inquiry-based learning is based
on processes that involve students directly. Students are involved in inquiry-based learning that is
meaningful, has true value and relevance, develops high-level thinking skills that are needed (Zubaidah
2016).
DOI: doi.org/10.21009/1.05107
Received : 11 December 2018
Revised : 28 July 2019
Accepted : 30 July 2019
Published : 30 July 2019
JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 64
e-Jurnal: http://doi.org/10.21009/1
The application of the inquiry learning model can help students to develop critical thinking skills
and allow students to build their knowledge as practiced by scientists (Corlu et al. 2012). Inquiry
learning which is in line with the development of age and the maturity level of critical thinking of
junior high school students is Guided Inquiry learning. It involves structured steps in the form of
guiding questions, namely identifying problems, making hypotheses, collecting and analyzing data,
making conclusion decisions (Sarwi et al. 2016).
The development of information and communication technology in the era of industry 4.0 is
inevitable. The use of technology in online and offline software-based learning media is a prevalent
thing and even becomes a necessity amid the swift use of technology in various fields. Sutrisno (2012)
states that technology can support inquiry learning, collaboration and repositioning in carrying out the
learning process so that the guided inquiry strategy combined with interactive media and worksheet
can develop students' critical thinking skills.
The guided inquiry model is integration between material, pedagogic and technology or known as
technology pedagogy content knowledge (TPACK). The guided inquiry model that is often carried out
has not yet implemented digital technology media. Therefore, there needs to be an update on the use
of digital technology media in applying the guided inquiry model. One medium that can be applied in
inquiry-based learning is Scratch. Scratch offers interesting and compatible features in the form of
animation programs that are integrated both offline and online. Scratch features make it easy for users
to learn and apply them to learning. The use of Scratch of learning physics on the concept of gas kinetic
theory can improve conceptual understanding, activity, critical thinking skills and creativity of students
(Martanti et al. 2013).
The concept of physics about linear motion at the level of junior high school is often taught
conventionally to students in the form of general explanations and formulas. As a result, the ability to
understand the concept of linear motion by students is not optimal and even misconceptions occurring.
The ability to master the concept is closely related to the ability to think critically. Critical thinking
ability of students must be trained in learning.
According to Ennis (2011), aspects of indicators of critical thinking include:
1. Elementary clarification, including focusing questions, analyzing arguments, asking questions
and answering questions that require explanation or challenge;
2. Basic support, including considering source credibility and considering observations;
3. Inference, including: compiling and considering deduction, compiling and considering
induction, arranging decisions and considering the results;
4. Advanced clarification, including: identifying terms and considering definitions, identifying
assumptions;
5. Strategies and tactics, including: determining an action and interacting with others.
Critical thinking is a type of important thinking that requires the use of analytical and evaluative
cognitive processes and mainly consists of analyzing arguments based on logical consistency with the
aim of recognizing false biases and reasoning (Arends 2012).
Several studies on the application of learning media have shown positive results towards improving
students' critical thinking skills. The study of Subhan et al (2018) concluded that there was a positive
effect of animation media in the guided inquiry learning model of critical thinking skills and learning
activities of XI grade students of Makassar Senior High School 21 on the concept of chemical
equilibrium. Syahdiani et al. (2015) research added that inquiry-based interactive multimedia is able to
improve learning outcomes and train students' critical thinking skills. Therefore, it is necessary to apply
the use of scratch media with guided inquiry to improve students' critical thinking skills in the concept
of straight motion.
METHODS
The quasi-experimental research design uses one group pre-post test post design. The study
population was all eighth grade students of SMP Negeri 1 Banjarharjo in the 2018/2019
academic year totaling 9 classes. The selection of research samples using purposive sampling
technique with the consideration of having the lowest average value in the Semester 1
JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 65
e-Jurnal: http://doi.org/10.21009/1
Assessment for science subjects compared to other classes. The sample is class VIII B with 36
students.
The research was conducted in three stages, namely: (1) pre test; (2) treatment guided
inquiry assisted by scratch media; (3) post test. The Guided inquiry process is conducted
through instructions for learning questions on student worksheets that are integrated with
Scratch media as a visualization of linear motion concept learning. The research instrument
used was five essay tests outlined from the indicators of critical thinking skills.
The analysis of the results of tests of students 'critical thinking skills was first carried out
by determining the score on each indicator and the score of each question, according to the
scoring criteria that had been determined based on the indicators of students' critical thinking
skills. According to Subhan et al (2018), the results of the analysis of critical thinking skills
obtained by students during the learning process are categorized in TABLE 1.
TABLE 1. Criteria for Critical Thinking Skills
Percentage of critical
thinking skills (%)
Category
81 – 100
Very critical
66 – 80
Critical
56 – 65
Quite critical
41 – 55
Less critical
0 – 40
Not Critical
To determine the improvement of critical thinking skills, carried out through the analysis
of N-gain test using the value of the pre test and post test value. The results of the critical
thinking N-gain test was categorized into three criteria: low (<g> < 0.3), moderate (0.3 ≤ <g>
<0.7), and high (<g>> 0.7) (Wiyanto 2008).
RESULTS AND DISCUSSIONS
Learning activities in the classroom begin with pre-test activities. Then, students received
treatment with guided inquiry using the scratch media. The guided inquiry process is done
through mentoring students' worksheets that are integrated in learning using scratch media.
Instructions for learning questions are presented through worksheets and visualized through
scratch media. Interactively, students can enter and change the initial data in the form of values
of velocity, time, acceleration of objects to see the visualization of the linear motion concept
in the scratch media. In the final stage of the learning activity, a post test was conducted to
measure students' critical thinking skills. Display of scratch media used in learning is shown
in FIGURE 1.
(a)
(b)
FIGURE 1. Display the scratch media in the linear motion concept, (a) the ball before moving and (b) the ball after moving
JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 66
e-Jurnal: http://doi.org/10.21009/1
The results of data analysis in FIGURE 2 about the critical thinking skills of students during the
pre-test showed that around 16.67% of students were categorized quite critical to very critical while
around 83.33% of students were categorized as less critical, even not critical. This is because students
have not been trained to develop critical thinking skills through learning activities. The results of data
analysis of students' critical thinking skills at the post-test showed that around 91.66% of students were
categorized quite critical to very critical, while around 8.34% of students as less critical, not even
critical. This is because students have been trained to develop their critical thinking skills through the
implementation of guided inquiry learning activities assisted by scratch media. Students can provide a
simple explanation of the question, express argument, make conclusions and express further
explanations about the linear motion concept. Compared with the conditions directed by the teacher,
students in guided inquiry conditions showed a significant improvement both in conceptual
understanding and in their level of thinking skills in explaining the concept of density (Almuntasheri
et al. 2016).
(a)
(b)
FIGURE 2. Students' critical thinking skills (a) pre-test and (b) post-test.
FIGURE 3. N-gain average value of pre-test and post-test.
The results of the N-gain test in FIGURE 3 indicate an increase in the pre-test value to the post-test
value of 0.56 with the middle criterion. In this case, guided inquiry learning assisted by scratch media
has a positive effect on increasing the value of students. The impact of giving treatment in learning can
improve students' critical thinking skills during pre-test and post-test and there is a positive correlation
between the value of the pre-test and post-test on the given treatment (Corlu et al. 2012).
JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 67
e-Jurnal: http://doi.org/10.21009/1
CONCLUSIONS
The application of guided inquiry learning assisted by scratch media can train and increase students'
critical thinking skills in the linear motion concept of 0.56 with medium criteria. Therefore, it is
expected that teachers can apply Guided inquiry scratch in linear-motion concept learning.
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JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Volume 5 Issue 1, July 2019
p-ISSN: 2461-0933 | e-ISSN: 2461-1433 68
e-Jurnal: http://doi.org/10.21009/1
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