摘要：The aims of this study were 1) to describe the
relationship between groundwater surface depth with salinity in the coastal areas of new kungkai beach
of Seluma, and 2) to determine the improvement of learning outcomes (cognitive) of high ability
students, moderate and low by using discovery learning model on the concept of static fluid in class X
computer and network engineering at SMK Negeri 3 Seluma. This research was a quasi experimental
research with one groups pretest-posttest design. The results showed: 1) The relationship between depth
with salinity has a value of 0.6478 with a significance level of 0.001 (<0.05); 2) Learning with discovery
learning model can improve student learning outcomes on cognitive aspects (knowledge). Increased
cognitive results can be seen from the average value of the initial test, the final test and the average
value of gain in the class x Tkj is high-ability groups are at high criteria with a value of 0.75 gain in the
group is in the criteria medium with the value of gain 0,52 and in the low group were in moderate
criteria with a gain value of 0.44. There is a difference in learning outcomes between the high, medium
and low groups. The difference is shown by Fcount > Ftable (4.04 > 3.35) with a significance level of
5%.
关键词：Kedalaman permukaan air tanah; salinitas; model Discovery Learning; SMKN 3 Seluma.
