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Linear Perspective: Brunelleschi's Experiment

An introduction to Filippo Brunelleschi's experiment regarding linear perspective, c. 1420, in front of the Baptistry in Florence http://smarthistory.khanacademy.org/Brunelleschi.html

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Florence
806
04:15

Identifying parallel and perpendicular lines

Identifying Parallel and Perpendicular Lines

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Angles between intersecting lines
546
03:34

Trolls, tolls, and systems of equations

A troll forces us to use algebra to figure out the make-up of his currency. We end up setting up a system of equations

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System for solving the King's problems
477
06:50

Interpreting a graph exercise example

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Linear and nonlinear functions
539
02:22

Linear and nonlinear functions (example 3)

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Linear and nonlinear functions
519
02:12

Linear and nonlinear functions (example 2)

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Linear and nonlinear functions
505
03:34

Linear and nonlinear functions (example 1)

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Linear and nonlinear functions
507
02:25

Solving linear systems by graphing

Solving Linear Systems by Graphing

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Solving linear systems graphically
558
08:29

Figuring out angles between transversal and parallel lines

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Angles between intersecting lines
514
02:15

Using algebra to find measures of angles formed from transversal

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Angles between intersecting lines
538
04:40

Vertical slice of rectangular pyramid

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Constructing and slicing geometric shapes
534
03:29

Constructing triangles with constraints

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Constructing and slicing geometric shapes
534
03:58

Constructing a right isosceles triangle

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Constructing and slicing geometric shapes
534
01:25

Splitting pie with family

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Angles
487
04:33

Solving for angles

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Angles
532
02:59

Using algebra to find the measures of vertical angles

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Angles
515
02:33

Example using algebra to find measure of supplementary angles

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Angles
547
02:36

Example using algebra to find measure of complementary angles

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Angles
515
02:32

Introduction to vertical angles

Figuring out angles at the intersection of two lines

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Angles
477
07:18

Recognizing linear functions

Recognizing Linear Functions

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Linear and nonlinear functions
527
04:00