Abstract:
These research aims to increase of student’s ability to criticals think. Research Desain is
Classroom Action Research with one cycle. Collected data is data about lecturing execution
with observation technic and data about ability of student to criticals think with written tes
technique. From three session of lecturing executed, is observed that student work in
finishing problems have walked better. During execution three sessions lecturing becoming
resistance is prepare result of group discussion to presentation. Skill of student use laptop in
preparing report result of team-work still weakens. Obtained conclusion that “If the learning
strategy of Problem Solving used in lecturing betterly can improve student's ability to
criticals think in items of partial defferential application of function two variables on
Advanced Calculus Courses
