
 
parts  of  our  knowledge".  Ennis  pointed  out,  "The 
definition of critical thinking is reflective thinking by 
emphasizing decision-making about what to believe 
or  do".  Implicitly,  critical  thinkers  evaluate  the 
implicit thoughts of what they hear and read, examine 
the  process  of  self-thinking  when  writing,  solving 
problems,  making  decisions,  or,  or  developing  a 
project (Surya, 2013: 159). Alec Fisher (Ennis) stated 
"Critical thinking is a sensible and reflective thinking 
that focuses on deciding what to believe or do." 
According  to  Webster's  New  Encyclopedic  All 
New 1994 Edition cit, Amri (2010: 62), "critical" is 
"implement  or  practice  the  careful  assessment  and 
objective"  so  that  "critical  thinking"  can  be 
interpreted  as  thinking  that  requires  precision  in 
making decisions. 
Another  definition  given  by  Ennis  (Suryanti  et  al, 
2008: 31) is critical thinking is a process that aims to 
make sensible decisions about what we believe and 
what we do. Critical thinking is one step higher level 
thinking  into  four  groups  which  include  problem 
solving,  decision  making,  critical  thinking,  and 
creative  thinking  (Amri  &  Ahmadi,  2010).  Wijaya 
(Suryanti et al, 2008) says that critical thinking skills 
as part of thinking skills should be owned by every 
member  of  society,  because  there  are  so  many 
problems in life that must be done and resolved (Amri 
and Ahmadi, 2012: 66). 
Based on the above opinion it can be concluded 
that critical thinking describes an active process of 
thinking,  or  not  just  take  for  granted  the  ideas  of 
others. Critical thinking shows that there is reason to 
believe in something and for that ability is part of the 
critical thinking skills that learners must have in order 
to solve all problems.  
Hendra  Surya  (2012:  179)  stated  that  critical 
thinking steps that can be grouped into 3 namely: (1) 
Recognition of problems, assessing information, and 
solving problems or drawing conclusions, (2) Assess 
relevant information, (3) Troubleshooting or drawing 
conclusions. 
Wahab Jufri (2013: 104) states that the indicator 
of critical  thinking skills  is  to  formulate  problems, 
give  arguments,  deduce,  induce,  evaluate,  make 
decisions and determine actions.  Facione  (1990) in 
Liliasari  and  Tawil  (2013:  9)  identified  6  critical 
thinking  skills,  namely  interpretation,  analysis, 
evaluation,  inference,  explanation,  and  self 
regulation.  While  Henri  (1991)  which  quoted  by 
Liliasari  and  Tawil  (2013:  9)  identifies  critical 
thinking  skills  in  5  dimensions,  namely  basic 
clarification,  in-depth  clarification,  inference, 
assessment, strategy, and tactics. 
Based on the aspect of students' critical thinking 
skills which have been proposed, this research uses 
aspects  of  critical  thinking  skills  according  to 
Facione's  (1990)  opinion  in  Liliasari  and  Tawil 
(2013:  9)  is  interpretation,  analysis,  evaluation, 
inference, explanation, and self regulation. 
 
2.2  Review of Learning Media 
2.2.1  Definition of Learning Media 
Media serves as an intermediary in the dissemination 
of information from the sender of information to the 
recipient information. According to Anderson which 
quoted by Sukirman (2012: 28) Media learning is a 
medium  that  allows  the  realization  of  a  direct 
relationship between the work of a subject developer 
with  the  students.  Learning  media  is  a  means  or 
educational tool that can be used as an intermediary 
in the learning process to enhance effectiveness and 
efficiency in achieving teaching objectives (Sanaky, 
2013: 4). Meanwhile, according to Gerlach & Ely that 
when understood in broad outline is human, material, 
or events that build conditions that make students able 
to  acquire  knowledge,  skills,  or  attitudes.  In 
particular,  the  meaning  of  media  in  teaching  and 
learning process tends to be interpreted as graphic, 
photographic, or electronic tools to capture, process 
and rearrange visual or verbal information (Arsyad, 
2013: 3). Winkell quotes from De Corte (2005) who 
stated that instructional media is a non-personal (non-
human) means used or provided by faculty who play 
an important role in teaching and learning, to achieve 
the instructional objectives. 
Based  on  the  above  opinion,  it  can  be  drawn 
understanding  of  instructional  media  which  is 
anything  that  can  be  used  to  communicate  the 
message to students centered on the students so that 
students  are  more  motivated  to  learn  through 
discussion of material that students are interested in. 
2.2.2  Characteristics of Learning Media 
According to Bretz which quoted by Sadirman (2006: 
2) identifies the main characteristics of instructional 
media, among others: (1) Sound, is distinguished also 
be a broadcast media (telecommunications) and the 
recording media. 2) Visual, divided into three namely 
images, lines, and symbols that are one continuum of 
the form that can be caught by the sense of sight. 
According to Gerlach and Ely which quoted by 
Arsyad (2013: 15-17), there are three characteristics 
of  the  media,  namely:  Marks  fixatives  (fixative 
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