With advancements in educational technology, innovative methods like WebQuest cognitive journeys have been explored to enhance spatial abilities, critical for success in STEM fields. Spatial skills, particularly in geometry and engineering, are essential for problem-solving and future academic success. This study focuses on improving these abilities in Yemeni secondary school students through WebQuest integration in the mathematics curriculum. The study aims to investigate the impact of employing WebQuest cognitive trips on the development of spatial abilities among seventh-grade students in the Engineering unit in Al-Zahra Secondary School in Yemen. A spatial abilities development test was prepared, and computerized software for the sixth unit 'Engineering' for the seventh grade was developed and taught in a WebQuest manner. The study was conducted on a sample of 87 female students, divided into two groups: an experimental group consisting of 45 students and a control group consisting of 42 students. The study revealed several results, the most important of which was the positive effect of using WebQuest cognitive trips in developing the spatial abilities of the study sample. The study recommended restructuring mathematics curriculum units to include activities based on the utilization of the stages of cognitive trips via WebQuest for students to independently access and employ knowledge.