closed figure   14 videos

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  Figurative Language

  Writing Writing Terms

  The definition and types of figurative language.

  figurative language
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  Significant Figures

  Chemistry Introduction to Chemistry

  How to find the correct number of figures to show when writing numbers.

  significant figures digits rounding
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  Significant Figures

  Physics Introduction to Physics

  How to find the correct number of figures to show when writing numbers.

  significant figures digits rounding
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  Use Your Figures

  SAT SAT Math

  figures estimation diagrams figures drawn to scale figures not drawn to scale
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  Properties of Similar Polygons

  Geometry Similarity

  How to identify if two figures are similar.

  similar figures corresponding angles congruence corresponding sides proportional
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  Optimization Using the Closed Interval Method

  Calculus Applications of the Derivative

  How to evaluate the limit of a function at points where it is not continuous.

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  Polygons

  Geometry Geometry Building Blocks

  How to define a polygon, how to distinguish between concave and convex polygons, how to name polygons.

  polygon closed figure side segment vertex convex concave diagonal
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  Tips for Figuring Out What a Rate Law Means

  Chemistry Chemical Reaction Rates

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  Standing Sound Waves

  Physics Vibration and Waves

  Understanding standing sound waves.

  standing sound waves open boundary condition closed boundary condition
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  Reflectional Symmetry

  Geometry Transformations

  How to identify and describe reflectional symmetry.

  symmetry figure maps isometry mirror image square equilateral triangle
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  Optimization Problems: Applications to Economics

  Calculus Applications of the Derivative

  How to use the optimization methods of calculus to optimize cost or revenue.

  cost revenue average cost optimization methods closed interval method first derivative test second derivative test
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  Transformations and Isometries

  Geometry Transformations

  How to determine the types of transformations, the definition of isometry, and how to say and write a transformation's new image.

  transformation isometry figure image dilation rotation translation reflection rigid transformation prime maps
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  Dilations

  Geometry Transformations

  How to perform and describe a dilation.

  dilation transformation isometry similar figures enlarge reduce scale factor center of dilation
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  Strategies for the Math Section

  PSAT PSAT Prep

  Get familiar with the PSAT Math section, learn the main strategies to master it and improve your PSAT test score

  reading the questions choosing your own numbers using figures and diagrams plugging in answers order of difficulty