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  2. Wason selection task - Wikipedia

    en.wikipedia.org/wiki/Wason_selection_task

    Which card or cards must be turned over to test the idea that if a card shows an even number on one face, then its opposite face is blue? The Wason selection task (or four-card problem) is a logic puzzle devised by Peter Cathcart Wason in 1966. [1] [2] [3] It is one of the most famous tasks in the study of deductive reasoning. [4]

  3. Saxon math - Wikipedia

    en.wikipedia.org/wiki/Saxon_math

    The Saxon Math 1 to Algebra 1/2 (the equivalent of a Pre-Algebra book) curriculum [3] is designed so that students complete assorted mental math problems, learn a new mathematical concept, practice problems relating to that lesson, and solve a variety of problems. Daily practice problems include relevant questions from the current day's lesson ...

  4. Quotition and partition - Wikipedia

    en.wikipedia.org/wiki/Quotition_and_partition

    Thought of quotitively, a division problem can be solved by repeatedly subtracting groups of the size of the divisor. [1] For instance, suppose each egg carton fits 12 eggs, and the problem is to find how many cartons are needed to fit 36 eggs in total. Groups of 12 eggs at a time can be separated from the main pile until none are left, 3 groups:

  5. Division (mathematics) - Wikipedia

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

    If the divisor has a fractional part, one can restate the problem by moving the decimal to the right in both numbers until the divisor has no fraction, which can make the problem easier to solve (e.g., 10/2.5 = 100/25 = 4). Division can be calculated with an abacus. [14]

  6. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    Arithmetic is the fundamental branch of mathematics that studies numbers and their operations. In particular, it deals with numerical calculations using the arithmetic operations of addition, subtraction, multiplication, and division. [1]

  7. Mathletics (educational software) - Wikipedia

    en.wikipedia.org/wiki/Mathletics_(educational...

    Mathletics was established as a Personal Learning Environment (PLE) application in 2005 by 3P Learning, catering for Australian schools. The website is structured to facilitate an engagement with students from K-12 educational level, and offers various visual resources in their interactive and online Web 2.0 appropriation of the Australian Curriculum.

  8. Peter Cathcart Wason - Wikipedia

    en.wikipedia.org/wiki/Peter_Cathcart_Wason

    In 1960 Wason developed the first of many tasks he would devise to reveal the failures of human reasoning. The "2-4-6" task was the first experiment that showed people to be illogical and irrational. In this study, subjects were told that the experimenter had a rule in mind that only applied to sets of threes.

  9. Eleven-plus - Wikipedia

    en.wikipedia.org/wiki/Eleven-plus

    Most children took the eleven-plus in their final year of primary school: usually at age 10 or 11. In Berkshire and Buckinghamshire it was also possible to sit the test a year early – a process named the ten-plus; later, the Buckinghamshire test was called the twelve-plus and taken a year later than usual. Originally, the test was voluntary ...

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