Geometry is an important branch of mathematics. Geometry curriculum can be enriched by using different Technologies such as graphing calculators and computers. Logo-based different software packages aim to improve conceptual understanding in geometry. The goals of this paper are i) to present theoretical foundations of any computer software developed to enrich primary and secondary school geometry curriculum, ii) to introduce main features of Logo, iii) to introduce a new version of Logo called LogoTurk, and iv) to present some recommendations for future research. An appendix shows a car drawn in LogoTurk. (Contains 5 figures and 2 tables.)