<![CDATA[This study aims to analyze the effect of integrating Autodesk Inventor and Morph 3D PowerPoint on students’ learning outcomes in the Engineering Drawing subject at SMK IPT Karangpanas. A true experimental design with a pretest–posttest control group was employed, involving an experimental class (n = 18) and a control class (n = 19). The test instrument was validated by experts and categorized as “highly feasible,” with strong reliability based on the percentage of agreement. The pretest results showed a significant difference between the two groups; therefore, the learning effectiveness analysis focused on the N-Gain score. Findings indicate that the experimental group achieved medium improvement, whereas the control group showed low improvement. The Mann–Whitney test was used due to the non-normal distribution of the data, resulting in U = 2.000, Z = –5.222, and p = 0.000, confirming a significant difference in the posttest scores between the groups. These results demonstrate that the integration of 3D-based visualization media enhances students’ spatial representation skills more effectively than conventional 2D media. Practically, this study offers an alternative instructional media that vocational teachers can use to clarify object-view concepts and improve the effectiveness of engineering drawing instruction.]]>
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