
13:17 - Project Maths
... Problem Solving activity“Write down what you see” is only a start Teacher demonstrates in a linear fashion (zig zag in reality) May be the first time students have ever encountered proof Van Hiele level 4- difficult! Takes time. 1 Q or 8 Q???? ...
... Problem Solving activity“Write down what you see” is only a start Teacher demonstrates in a linear fashion (zig zag in reality) May be the first time students have ever encountered proof Van Hiele level 4- difficult! Takes time. 1 Q or 8 Q???? ...
Essentials of Geometry
... Apply geometric concepts to model and solve real world problems. 1 -- Essential Make sense of problems and persevere in solving them. 2 -- Essential Reason abstractly and quantitatively. 3 -- Essential Construct viable arguments and critique the reasoning of others. 4 -- Essential Model with mathema ...
... Apply geometric concepts to model and solve real world problems. 1 -- Essential Make sense of problems and persevere in solving them. 2 -- Essential Reason abstractly and quantitatively. 3 -- Essential Construct viable arguments and critique the reasoning of others. 4 -- Essential Model with mathema ...
PDF
... Area of a triangle There are several ways to calculate a triangle’s area. In hyperbolic and spherical geometry, the area of a triangle is equal to its defect (measured in radians). For the rest of this entry, only Euclidean geometry will be considered. Many formulas for the area of a triangle exist ...
... Area of a triangle There are several ways to calculate a triangle’s area. In hyperbolic and spherical geometry, the area of a triangle is equal to its defect (measured in radians). For the rest of this entry, only Euclidean geometry will be considered. Many formulas for the area of a triangle exist ...
History of geometry

Geometry (from the Ancient Greek: γεωμετρία; geo- ""earth"", -metron ""measurement"") arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers (arithmetic).Classic geometry was focused in compass and straightedge constructions. Geometry was revolutionized by Euclid, who introduced mathematical rigor and the axiomatic method still in use today. His book, The Elements is widely considered the most influential textbook of all time, and was known to all educated people in the West until the middle of the 20th century.In modern times, geometric concepts have been generalized to a high level of abstraction and complexity, and have been subjected to the methods of calculus and abstract algebra, so that many modern branches of the field are barely recognizable as the descendants of early geometry. (See Areas of mathematics and Algebraic geometry.)