
 
this, thinking skills are needed that must be trained 
periodically so that students are able to develop and 
assess quality arguments. Some experts suggest how 
to  train  thinking  skills  related  to  strengthening 
argumentation skills in the learning process: 1) train 
students to solve problems (Norman, 1980; Hutchins, 
1995). The problem in question is able to provoke 
students to collect, organize; understand information 
related  to  problem  solving  (Reiser  et  al.,  2001). 
(Norman, 1980), when cognitive knowledge is used 
to manipulate information, cognitive knowledge is a 
means to interact with problems. The quality of the 
test  argument  students  have  (a)  sufficient  data  in 
guaranteeing a claim, (b) coherent explanation for a 
phenomenon  (Sandoval,  2003),  and  (c)  combined 
according  to  data  references  (Sandoval  and 
Millwood, 2005) synthesizing structure, and content. 
Regarding content, this development instrument 
offers  a  pattern  of  reinforcement  so  that  students 
produce  arguments  to  uncover  phenomena  using 
relevant theories, such as Archimedes' principles, and 
ensure the statements produced are connected with 
data.  Explicitly  a  good  instrument  is  capable  of 
forcing  students  to  produce  quality  statements  and 
how  well  supported  by  data  (Sandoval,  2003; 
Sandoval  and  Reiser,  2004).  The  instrument  helps 
students focus on understanding knowledge and ways 
of  supporting  statements  (Driver  et  al.,  1994). 
However, further research is needed to analyze the 
relationship between the structure and relevance of 
statements, the adequacy and accuracy of statements 
and  learning  strategies  that  strengthen  computer-
assisted argumentation skills. 
4  CONCLUSION 
Students’  have  the  skills  to  submit  statements  that 
focus  on  justifying  the  content  or  how  well  the 
statement component supports the understanding of 
students' concepts. Students have also succeeded in 
generating arguments in response to problems related 
to  the  phenomenon  of  "hollow  wood  will  remain 
afloat but the position of the top of the wood will be 
the  same  as  wood  a."  The  success  of  students 
involved  in  producing  arguments  facilitated  by 
argumentation skill instruments broadly and precisely 
guides  the  thinking  process  of  connecting  relevant 
information to a coherent explanation, and it is also 
able  to  articulate  and  justify  student  explanations 
regarding why objects float and sink. The results of 
this study illustrate the importance of strengthening 
argumentation skills in science. This study describes 
students' arguments that provide a lot of information 
about understanding concepts and students' ability to 
communicate  and  justify  written  statements.  This 
study  has  also  guided  how  to  analyze  student 
argumentation  production  focusing  on  statement 
structure,  content,  and  relationships  between 
components.  
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