In a proceeding pursuant to CPLR article 78 inter alia to review the respondent board of education's termination of petitioner's part-time employment as a teacher (the petition demands declaratory relief), she appeals from a judgment of the Supreme Court, Nassau County, entered February 21, 1975, which dismissed the petition. Judgment affirmed, without costs. We deem the relief sought to be a review of the determination to summarily dismiss petitioner and other related relief. We concur with the views of Special Term that part-time teaching service does not constitute probationary service for the purpose of acquiring tenure (see Matter of Nyboe v Allen, 10 Misc.2d 895, affd 7 A.D.2d 822; Matter of Zannitto, 14 Ed Dept Rep 16; Matter of Parker, 12 Ed Dept Rep 96; Matter of Sura, 12 Ed Dept Rep 81; Matter of Gates, 12 Ed Dept Rep 194). Nor can it be argued that petitioner acquired tenure by acquiescence and estoppel by virtue of certain actions taken by school officials contrary to the provisions of the Education Law which she relies on. "Tenure by acquiescence and estoppel may only be acquired through actual service beyond the term of probation" (Matter of Mugavin v Nyquist, 48 A.D.2d 727, 728; see, also, Matter of Gunthorpe v Board of Educ. of Union Free School Dist. No. 5, Town of Babylon, 41 Misc.2d 757). As noted earlier, the necessary actual service must be full-time employment. Hopkins, Acting P.J., Martuscello, Margett, Christ and Shapiro, JJ., concur.