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  2. Video lesson - Wikipedia

    en.wikipedia.org/wiki/Video_lesson

    Animated video lessons, in particular, use engaging visuals and simplified explanations to help break down complex topics, making them especially effective in subjects like Science or Math. [1] The Khan Academy has been successful in teaching mathematics using notes written using Yahoo! 's doodle pad with a voiceover by Salman Khan (educator) .

  3. Block Drug - Wikipedia

    en.wikipedia.org/wiki/Block_Drug

    Block Drug Company was a pharmaceutical company based in Jersey City, New Jersey, United States, that specialized in dental care products.Its most popular products included Polident denture cleanser, Poli-Grip denture adhesive, Dentu-Creme denture toothpaste, Nytol sleeping pill, Tegrin medicated shampoo for psoriasis, Lava hand soaps (acquired from Procter & Gamble), Beano and Phazyme anti ...

  4. Polident - Wikipedia

    en.wikipedia.org/?title=Polident&redirect=no

    This page was last edited on 29 September 2011, at 00:02 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  5. Partial - Wikipedia

    en.wikipedia.org/wiki/Partial

    Partial seizure or focal seizure, a seizure that initially affects only one hemisphere of the brain; Partial or Part score, in contract bridge a trick score less than 100, as well as other meanings; Partial or Partial wave, one sound wave of which a complex tone is composed in a harmonic series; Showing partiality, favor, or bias

  6. Partials Sequence - Wikipedia

    en.wikipedia.org/wiki/Partials_Sequence

    Partials was published on February 28, 2012 by the HarperCollins imprint Balzer & Bray. [2] Common Sense Media gave Partials a five star rating and recommended the book for readers age fourteen and up. [3] The Los Angeles Times noted that although the book is young adult fiction, older readers may enjoy the book as well. [4]

  7. Lesson - Wikipedia

    en.wikipedia.org/wiki/Lesson

    "The Difficult Lesson" by William-Adolphe Bouguereau (1884) Falconry lesson. A lesson or class is a structured period of time where learning is intended to occur. [citation needed] It involves one or more students (also called pupils or learners in some circumstances) being taught by a teacher or instructor.

  8. Otonality and utonality - Wikipedia

    en.wikipedia.org/wiki/Otonality_and_Utonality

    For example, ⁠ 1 / 1 ⁠, ⁠ 5 / 4 ⁠, and ⁠ 3 / 2 ⁠ (just major chord) form an otonality because they can be written as ⁠ 4 / 4 ⁠, ⁠ 5 / 4 ⁠, ⁠ 6 / 4 ⁠. This in turn can be written as an extended ratio 4:5:6. Every otonality is therefore composed of members of a harmonic series. Similarly, the ratios of a utonality share ...

  9. Second partial derivative test - Wikipedia

    en.wikipedia.org/wiki/Second_partial_derivative_test

    Thus, the second partial derivative test indicates that f(x, y) has saddle points at (0, −1) and (1, −1) and has a local maximum at (,) since = <. At the remaining critical point (0, 0) the second derivative test is insufficient, and one must use higher order tests or other tools to determine the behavior of the function at this point.