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  2. Student teams-achievement divisions - Wikipedia

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

    STAD has been used in a wide variety of subjects from mathematics to language, arts to social science and used from 2nd grade in schools through college. It is the most appropriate for teaching well defined objectives by incorporating more open-ended assessments, such as essays or performance. [4]

  3. Exercise (mathematics) - Wikipedia

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

    The individual instructors at various colleges use exercises as part of their mathematics courses. Investigating problem solving in universities, Schoenfeld noted: [7] Upper division offerings for mathematics majors, where for the most part students worked on collections of problems that had been compiled by their individual instructors.

  4. Casting out nines - Wikipedia

    en.wikipedia.org/wiki/Casting_out_nines

    The method works because the original numbers are 'decimal' (base 10), the modulus is chosen to differ by 1, and casting out is equivalent to taking a digit sum. In general any two 'large' integers, x and y , expressed in any smaller modulus as x' and y' (for example, modulo 7) will always have the same sum, difference or product as their ...

  5. Investigations in Numbers, Data, and Space - Wikipedia

    en.wikipedia.org/wiki/Investigations_in_Numbers...

    Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

  6. Long division - Wikipedia

    en.wikipedia.org/wiki/Long_division

    If necessary, simplify the long division problem by moving the decimals of the divisor and dividend by the same number of decimal places, to the right (or to the left), so that the decimal of the divisor is to the right of the last digit. When doing long division, keep the numbers lined up straight from top to bottom under the tableau.

  7. How to Solve It - Wikipedia

    en.wikipedia.org/wiki/How_to_Solve_It

    How to Solve It suggests the following steps when solving a mathematical problem: . First, you have to understand the problem. [2]After understanding, make a plan. [3]Carry out the plan.

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