Solutions for outlines of people (woman standing, water skier, woman kneeling, man walking) made from…
Solutions for outlines of people (swimmer, reclining man, butler, diver) made from tangram pieces. Tangrams,…
Solutions for outlines of people (ice skater, saint statue, walking man, reclining man) made from tangram…
Solutions for outlines of people (silhouettes of men) made from tangram pieces. Tangrams, invented by…
Silhouette outlines of people (runners) made from tangram pieces. Tangrams, invented by the Chinese,…
Silhouette outlines of people (runners, dancers) made from tangram pieces. Tangrams, invented by the…
Silhouette outlines of people (woman standing, water skier, woman kneeling, man walking) made from tangram…
Silhouette outlines of people (swimmer, reclining man, butler, diver) made from tangram pieces. Tangrams,…
Silhouette outlines of people (ice skater, saint statue, walking man, reclining man) made from tangram…
Silhouette outlines of people (silhouettes of men) made from tangram pieces. Tangrams, invented by the…
Solutions for silhouette outlines of people (runners) made from tangram pieces. Tangrams, invented by…
Solutions for silhouette outlines of people (runners, dancers) made from tangram pieces. Tangrams, invented…
Solutions for silhouette outlines of people (woman standing, water skier, woman kneeling, man walking)…
Solutions for silhouette outlines of people (swimmer, reclining man, butler, diver) made from tangram…
Solutions for silhouette outlines of people (ice skater, saint statue, walking man, reclining man) made…
Solutions for silhouette outlines of people (silhouettes of men) made from tangram pieces. Tangrams,…
Outlines of sea animals (sea monster, dolphin, sea turtle, stingray) made from tangram pieces. Tangrams,…
Solutions for outlines of sea animals (sea monster, dolphin, sea turtle, stingray) made from tangram…
Silhouette outlines of sea animals (sea monster, dolphin, sea turtle, stingray) made from tangram pieces.…
Solutions for silhouette outlines of sea animals (sea monster, dolphin, sea turtle, stingray) made from…
Outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow, rhombus, hexagon) made…
Outlines of shapes (quadrilateral, hexagon, arrow, pentagon) made from tangram pieces. Tangrams, invented…
Solutions for outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow, rhombus,…
Solutions for outlines of shapes (quadrilateral, hexagon, arrow, pentagon) made from tangram pieces.…
Silhouette outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow, rhombus,…
Silhouette outlines of shapes (quadrilateral, hexagon, arrow, pentagon) made from tangram pieces. Tangrams,…
Solutions for silhouette outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow,…
Solutions for silhouette outlines of shapes (quadrilateral, hexagon, arrow, pentagon) made from tangram…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
Tangram pattern with black pieces and thin white-dotted lines. Tangrams, invented by the Chinese, are…
"The symmetry of this class is as follows: The three crystallographic axes are axes of binary symmetry;…
"A combination of cube and tetrahedron. It will be noted that the tetrahedron faces truncate the alternate…
"The tetrahedron is a form composed of four equilateral triangular faces, each of which intersects all…
"The tetrahedron is a form composed of four equilateral triangular faces, each of which intersects all…
"If a positive and negative tetrahedron occured together with equal development, the resulting crystal…
"The tetrahexahedron is a form composed of twenty-four isoceles triangular faces, each of which intersects…
Illustration used to prove the theorem, "Two angles whose sides are parallel, each to each, are either…
Illustration used to prove the theorem, "Two angles whose sides are perpendicular, each to each, are…
Illustration used to prove that "If two triangles have two sides of one equal respectively to two sides…
Illustration used to prove that "If two triangles have two sides of one equal respectively to two sides…
Illustration used to prove that "If one side of a triangle is prolonged, the exterior angle formed is…
Illustration used to prove that "If two straight lines are parallel to a third straight line, they are…
Illustration used to prove that "If two sides of a triangle are unequal, the angle opposite the greater…
Illustration used to prove that "The sum of any two sides of a triangle is greater than the third side."
Illustration used to prove the theorem, "The sum of the angles of any triangle is two right angles."
"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…
"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…
"Orthohombic. In prismatic crystals terminated by pyramids, domes, and basal plane." — Ford, 1912
Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…