The teaching learning process by using crossword puzzle gives the
positive effect in improving the student’s vocabulary and the student’s
motivation in learning vocabulary. This is shown by the students’ enthusiasm
in doing crossword puzzle and most of the students more understand what the
teacher said in cycle II than in cycle I. Moreover, the student’s achievement of
vocabulary has improved by using crossword puzzle in teaching learning
process. When we compare between pre test and post test, we will know that
the students’ score in post test is greater than pre test. Furthermore the result
of t-test calculation in cycle I is 5, 97 and in cycle II is 6, 33. T-table with n =
26 is 2, 06. If t-table is same or greater than t-test calculation, so the null
hypothesis (Ho) is rejected. Ho is rejected, therefore there is significance
difference between pre test and post test mean.