. . . "The logo Turtles, originally developed at the Massachusetts Institute of Technology Artificial Intelligence Laboratory for teaching concepts in elementary geometry to primary-age children, can also be used in teaching higher-level mathematics. In the exercises described here, the turtle was programed to traverse curved surfaces. Both geometric and topological ideas and concepts are developed. (Sd)."@en . . . . . . . "Turtle Escapes the Plane : Some Advanced Turtle Geometry" . "Turtle escapes the plane : some advanced turtle geometry"@en . . "Turtle Escapes the Plane: Some Advanced Turtle Geometry. ArtificialIntelligence Memo Number 348"@en . . . "Turtle escapes the plane: some advanced turtle geometry" . . . "Reports - Research"@en . . . "Massachusetts Inst. of Tech., Cambridge. Artificial Intelligence Lab." . .