This research is an experimental research with data collection using observation and student debriefing sheets, the participants were 16 students with three meetings in class III at Al-Hikmah integrated Islamic elementary school. This research aims to determine the extent to which students are active in learning to master Arabic vocabulary using a lexical approach. So the results obtained were that the lexical approach was able to increase students' activeness in learning Arabic vocabulary mastery. The highest activity presentation with a percentage of 100% was table number 1, 2 and 14, then the second best activity with a percentage of 83% was table number 3, 4, 5. , 8, 11, 12, and 13. And the lowest activity with a percentage of 50% is table number 9. It is also known that there was a significant increase in the first meeting with a score of 60% then increased in the second meeting to 85% then in the third meeting it increased to 96 %. This shows that the lexical approach is effective in increasing the learning activity of Al-Hikmah Pekanbaru integrated Islamic elementary school students. Keywords: Lexical Approach, vocabulary mastery, student activity and improvement.
                        
                        
                        
                        
                            
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