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2. Pattern Blocks - Wikipedia

   en.wikipedia.org/wiki/Pattern_blocks

   [6] When Marion Walter, who was also part of the project in the 1960s spoke to Prenowitz in 1996, he said that he considered the allocation of one color to all blocks of a particular shape, much like Cuisenaire rods, which may have given him the idea, to be one of the innovative features of the blocks. Also important in his choice was that ...

3. Mathematics education in the United States - Wikipedia

   en.wikipedia.org/wiki/Mathematics_education_in...

   A typical sequence of secondary-school (grades 6 to 12) courses in mathematics reads: Pre-Algebra (7th or 8th grade), Algebra I, Geometry, Algebra II, Pre-calculus, and Calculus or Statistics. However, some students enroll in integrated programs [3] while many complete high school without passing Calculus or Statistics.

4. Mathematical Kangaroo - Wikipedia

   en.wikipedia.org/wiki/Mathematical_Kangaroo

   Participants of Mathematical Kangaroo 1995 to 2020. Mathematical Kangaroo (also known as Kangaroo challenge, or jeu-concours Kangourou in French) is an international mathematics competition in over 77 countries. There are six levels of participation, ranging from grade 1 to grade 12. The competition is held annually on the third Thursday of March.

5. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   Some students studying math may develop an apprehension or fear about their performance in the subject. This is known as math anxiety or math phobia, and is considered the most prominent of the disorders impacting academic performance. Math anxiety can develop due to various factors such as parental and teacher attitudes, social stereotypes ...

6. Vertex (geometry) - Wikipedia

   en.wikipedia.org/wiki/Vertex_(geometry)

   In geometry, a vertex (pl.: vertices or vertexes) is a point where two or more curves, lines, or edges meet or intersect. As a consequence of this definition, the point where two lines meet to form an angle and the corners of polygons and polyhedra are vertices. [1] [2] [3]

7. Square - Wikipedia

   en.wikipedia.org/wiki/Square

   In non-Euclidean geometry, squares are more generally polygons with 4 equal sides and equal angles. In spherical geometry, a square is a polygon whose edges are great circle arcs of equal distance, which meet at equal angles. Unlike the square of plane geometry, the angles of such a square are larger than a right angle.