Understanding introductory circuit concepts would be beneficial for K-12 students pursuing
related majors in college. Accordingly, various educational interventions have been designed and
implemented for students at the K-12 level. Previous reviews of circuit interventions were
limited to the undergraduate population, outdated, or did not identify intervention types.
Therefore, we investigated (a) what types of interventions were conducted in circuit education at
the K-12 level around the world from 2000 to 2025? (b) what impact these interventions had on
students, and (c) what similarities and differences exist in these interventions across countries.
We conducted a systematic review by searching and filtering studies published from 2000 to
2025. Specific keyword searches and forward and backward snowballing were used to locate 23
papers, including 38 studies. Due to our defined eligibility criteria, such as publication in
English, 43% of the papers reporting interventions included in this study were administered in
the United States. Among categories of interventions, motivational interventions were the least
common, and regarding learning strategies, cognitive-focused interventions outnumbered
metacognitive and management strategies. Interventions at the high school level were mainly
designed to have effects on student perceptions, as preparations for engineering majors align
more with high school curricula. Hence, there were generally more interventions at this level to
shape perceptions of electrical engineering. High school curricula also covered more advanced
topics, offering instructors greater flexibility in designing interventions and necessitating
strategies to address these challenging subjects.
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