the angle between planes 150 videos

Postulate, Axiom, Conjecture
Geometry Geometry Building Blocks
How to differentiate between the words postulate, axiom, and conjecture.
postulate axiom conjecture 
Constructing a Perpendicular to a Line
Geometry Constructions
How to find the shortest distance between a point and a line.
construction midpoint perpendicular equidistant shortest distance to a line 
SpeedInstantaneous Speed
Physics Linear and Projectile Motion
Understanding the differences between speed and instantaneous speed.
speed instantaneous speed distance time mechanics 
Vector Quantities  Scalar Quantities
Physics Linear and Projectile Motion
Understanding the differences between vectors and scalar quantities.
vector scalar quantities magnitude direction 
Centrifugal Force
Physics Circular Motion and Rotational Mechanics
Recognizing the differences between centripetal and centrifugal force.
centrifugal force centripetal force centrifuge 
Symbiotic Relationships
Biology Communities and Ecosystems
Understanding the relationships between organisms living in a community.
symbiotic relationships mutualism commensalism parasitism predation 
Empirical Formula  Molecular Formula
Chemistry Chemical Reactions
Understanding the differences between empirical and molecular formulas.
empirical formula molecular formula percent composition 
Heterogeneous Equilibrium  Homgeneous Equilibrium
Chemistry Chemical Equilibrium
Understanding the difference between homogeneous and heterogeneous equilibrium.
homogeneous heterogeneous equilibrium 
Regelation
Physics Heat Transfer and Change of Phase
Understanding the relationship between pressure and state of matter.
regelation freezing point freeze 
Converting Decimals, Percents, Fractions
PreAlgebra Decimals and Percents
How to convert between fractions, decimals, and percents

Slope
Algebra 2 Graphs of Linear Equations
How to find the slope between two points.
slope formula slope 
Rational Exponents
Algebra 2 Roots and Radicals
How to understand the correlation between radicals and fractional exponents.
rational exponents fractional exponents radical 
Analyzing Data
Algebra 2 Real Numbers
How to distinguish between mean, median and mode.
measures of central tendencies mean median mode average 
Tissues And Organs
Biology The Human Body
The relationships between tissues, organs, organ systems.
tissue organ system 
The Definitions of Sine and Cosine
Trigonometry Trigonometric Functions
How we define sine and cosine for all angle measures using the unit circle.
sine cosine right triangle definitions of sine and cosine angles in standard position unit circle definitions of sine and cosine 
The Definitions of Sine and Cosine
Precalculus Trigonometric Functions
How we define sine and cosine for all angle measures using the unit circle.
sine cosine right triangle definitions of sine and cosine angles in standard position unit circle definitions of sine and cosine 
Constructing the Incenter
Geometry Constructions
How to construct the incenter using a compass and straightedge.
point of concurrency angle bisectors equidistant 
Locus and Definition of a Circle and Sphere
Geometry Circles
How to define a circle and a sphere using the word locus.
locus set of points distance plane circle sphere given 
Similar Triangles
PreAlgebra Introductory Geometry
Overview of similarity: congruent angles, proportional corresponding sides

The Tangent Function
Trigonometry Trigonometric Functions
How to define the tangent function for all angles.
tangent right triangle trigonometry the unit circle