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  2. Student teams-achievement divisions - Wikipedia

    en.wikipedia.org/wiki/Student_teams-achievement...

    The students are placed in small groups or teams. The class in its entirety is presented with a lesson and students are subsequently tested. Individuals are graded on the team's performance . Although the tests are taken individually, students are encouraged to work together to improve the overall performance of the group.

  3. Lesson plan - Wikipedia

    en.wikipedia.org/wiki/Lesson_plan

    A lesson plan is the teacher's guide for running a particular lesson, and it includes the goal (what the students are supposed to learn), how the goal will be reached (the method, procedure) and a way of measuring how well the goal was reached (test, worksheet, homework etc.). [2]

  4. Subtraction - Wikipedia

    en.wikipedia.org/wiki/Subtraction

    In what is known in the United States as traditional mathematics, a specific process is taught to students at the end of the 1st year (or during the 2nd year) for use with multi-digit whole numbers, and is extended in either the fourth or fifth grade to include decimal representations of fractional numbers.

  5. Gas - Wikipedia

    en.wikipedia.org/wiki/Gas

    Drifting smoke particles indicate the movement of the surrounding gas.. Gas is one of the four fundamental states of matter.The others are solid, liquid, and plasma. [1] A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).

  6. Exercise (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Exercise_(mathematics)

    At the Russian School of Mathematics, students begin multi-step problems as early as the first grade, learning to build on previous results to progress towards the solution. In the 1960s, collections of mathematical exercises were translated from Russian and published by W. H. Freeman and Company : The USSR Olympiad Problem Book (1962), [ 8 ...

  7. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Historically, the concept of a proof and its associated mathematical rigour first appeared in Greek mathematics, most notably in Euclid's Elements. [4] Since its beginning, mathematics was primarily divided into geometry and arithmetic (the manipulation of natural numbers and fractions ), until the 16th and 17th centuries, when algebra [ a ...

  8. Composition of matter - Wikipedia

    en.wikipedia.org/wiki/Composition_of_matter

    After extended litigation, in 2000, a Canadian court permitted issuance of a patent on a mouse as a "composition of matter." [14] However, in 2002, the Canadian Supreme Court reversed that ruling and held (5-4) that the mouse itself could not be patented, but the biochemical process used to modify it could be. [15]

  9. Reading comprehension - Wikipedia

    en.wikipedia.org/wiki/Reading_comprehension

    A U.S. Marine helps a student with reading comprehension as part of a Partnership in Education program sponsored by Park Street Elementary School and Navy/Marine Corps Reserve Center Atlanta. The program is a community outreach program for sailors and Marines to visit the school and help students with class work.