The fundamental principle of "constructivist education" is that learning takes place when the learner enthusiastically participates in a process of "knowledge construction". This study is aimed at exploring kindergarten teachers' constructivist learning practices in Jordan. The participants of the study consisted of 60 kindergarten teachers; 30 kindergarten teachers taught kindergarten children in public schools and 30 kindergarten teachers taught kindergarten children in private schools in Irbid city of Jordan during the 2018-2019 school year. The study utilised a descriptive quantitative design, with an observation of Jordanian kindergarten teachers to gather data on the constructivist learning practices among Jordanian kindergarten teachers. The researcher designed an observation instrument that consisted of 35 items to collect data about constructivist learning practices. The findings revealed that the constructivist learning practices of kindergarten teachers were not developed to a high level of practice, but they achieved a moderate and low degree. Moreover, the researcher found that there are no "statistically significant" differences at ([alpha] [less than or equal to] 0.05) among the sampled Jordanian kindergarten teachers' implementation of constructivist learning practices based on experience, and their academic qualifications. However, kindergarten teachers utilised constructivist teaching practices in public schools more than in private schools. Professional workshops regarding constructivist learning practices among Jordanian kindergarten teachers are recommended.