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The study was carried out to determine the effect of greeno problem solving method on the academic achievement and interest of students in basic technology in Nsukka Educational zone of Enugu state, Nigeria. A quasi non-randomized control group, pre-test post-test design was used. The population for the study comprised all 6123 junior secondary school two (JSS II) students in 58 secondary schools in Nsukka Education zone in 2018/19 academic session. The instrument used for data collection were basic technology achievement test and interest inventory. Two research questions were posed and two hypotheses were formulated to guide the study. Mean and standard deviation were used to analyze the data for answering research questions while analysis of covariance (ANCOVA) was used to test the hypotheses of no significant difference at 0.05 level of significance. It was found out that the students taught with greeno problem solving method had higher mean post-test scores in the basic technology achievement test than those taught with conventional method. The study also revealed that both methods arose students’ interest. Based on these finding, it was recommended that basic technology teachers should always incorporate in their teachings, the use of greeno problem solving method.