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2. Khan Lab School - Wikipedia

   en.wikipedia.org/wiki/Khan_Lab_School

   Khan Lab School; Established: 2014; 10 years ago () Founder: Sal Khan: Type: Independent School, Non-profit organization: Focus: Designing student-centered global learning experiences, accessible to the world. Location

3. Multiplication - Wikipedia

   en.wikipedia.org/wiki/Multiplication

   Four bags with three marbles per bag gives twelve marbles (4 × 3 = 12). Multiplication can also be thought of as scaling.Here, 2 is being multiplied by 3 using scaling, giving 6 as a result.

4. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   Algebra (and later, calculus) can thus be used to solve geometrical problems. Geometry was split into two new subfields: synthetic geometry, which uses purely geometrical methods, and analytic geometry, which uses coordinates systemically. [23] Analytic geometry allows the study of curves unrelated to circles and lines.

5. Massive open online course - Wikipedia

   en.wikipedia.org/wiki/Massive_open_online_course

   Poster, entitled "MOOC, every letter is negotiable", exploring the meaning of the words "massive open online course" A massive open online course (MOOC / m uː k /) or an open online course is an online course aimed at unlimited participation and open access via the Web. [1]

6. Homothety - Wikipedia

   en.wikipedia.org/wiki/Homothety

   In Euclidean geometry homotheties are the similarities that fix a point and either preserve (if >) or reverse (if <) the direction of all vectors. Together with the translations , all homotheties of an affine (or Euclidean) space form a group , the group of dilations or homothety-translations .

7. Geometry from the Land of the Incas - Wikipedia

   en.wikipedia.org/wiki/Geometry_from_the_Land_of...

   Geometry from the Land of the Incas is a free geometry website funded by advertising, aimed mainly at high school and college age students. Developed by Antonio Gutierrez, the site uses sound, dynamic geometry, animations , science , and Incan history with the goal of raising students' interest in Euclidean geometry.