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2. Stars and bars (combinatorics) - Wikipedia

   en.wikipedia.org/wiki/Stars_and_bars_(combinatorics)

   The graphical method was used by Paul Ehrenfest and Heike Kamerlingh Onnes—with symbol ε (quantum energy element) in place of a star and the symbol 0 in place of a bar—as a simple derivation of Max Planck's expression for the number of "complexions" for a system of "resonators" of a single frequency.

3. Star (game theory) - Wikipedia

   en.wikipedia.org/wiki/Star_(game_theory)

   Star may also be denoted as the surreal form {0|0}. This game is an unconditional first-player win. This game is an unconditional first-player win. Star, as defined by John Conway in Winning Ways for your Mathematical Plays , is a value, but not a number in the traditional sense.

4. Star (graph theory) - Wikipedia

   en.wikipedia.org/wiki/Star_(graph_theory)

   In graph theory, a star S k is the complete bipartite graph K 1,k : a tree with one internal node and k leaves (but no internal nodes and k + 1 leaves when k ≤ 1). Alternatively, some authors define S k to be the tree of order k with maximum diameter 2; in which case a star of k > 2 has k − 1 leaves. A star with 3 edges is called a claw.

5. Worksheet - Wikipedia

   en.wikipedia.org/wiki/Worksheet

   The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

6. Kumon - Wikipedia

   en.wikipedia.org/wiki/Kumon

   All Kumon programs are pencil-and-worksheet-based, with a digital program that started in 2023. The worksheets increase in difficulty in small increments. [9] [10] Psychologist Kathy Hirsh-Pasek says that using such techniques for 2 to 4-year-olds "does not give your child a leg up on anything". [7] One study has observed a high percentage of ...

7. STAR (software) - Wikipedia

   en.wikipedia.org/wiki/STAR_(software)

   STAR Reading, STAR Early Literacy and STAR Math are standardized, computer-adaptive assessments created by Renaissance Learning, Inc., for use in K–12 education. Each is a " Tier 2 " assessment of a skill (reading practice, math practice, and early literacy, respectively that can be used any number of times due to item-bank technology.