position time 49 videos

Instantaneous Rate of Change
Calculus The Derivative
How to estimate the instantaneous rate liquid is pouring out of a container at t=4 by computing average rates of change over shorter and shorter intervals of time.
average rate of change instantaneous rate of change change in quantity change in time limits 
Parametric Equations and Motion
Precalculus Vectors and Parametric Equations
How to graph a parametric curve, and how to eliminate the parameter to obtain a rectangular equation for the curve.
position time parametric equations path rectangular equation eliminating the parameter square root function direction of motion 
SpeedInstantaneous Speed
Physics Linear and Projectile Motion
Understanding the differences between speed and instantaneous speed.
speed instantaneous speed distance time mechanics 
Instantaneous Velocity
Physics Linear and Projectile Motion
How to find instantaneous velocity.
instantaneous velocity changes in distance change in time 
Impulse
Physics Energy and Momentum
Understanding the concept of impulse.
impulse change momentum force over time 
Setting in Story
Writing Writing Terms
The importance of setting in a story.
setting time location story takes place 
Economics: Cost & Revenue
Calculus Applications of the Derivative
How to compute the average rate of change of the amount of a drug in a patient's bloodstream over an interval of time, and how to interpret whether the amount is increasing or decreasing over time.

Homeostasis
Biology Cell Functions and Processes
The definition and importance of homeostasis.
homeostasis equilibrium negative feedback positive feedback 
The Angle Between Vectors
Precalculus Vectors and Parametric Equations
How to compute the angle between two vectors.
dot product angle between vectors position vectors 
Area and Perimeter of Triangles
PreAlgebra Introductory Geometry
Understanding why the area of a triangle is 1/2 base times height

Scatterplots and Correlations
Algebra Introduction to Statistics
How to identify positive correlations, negative correlations, or no correlation between two variables.
scatterplot correlation trend line line of best fit 
Applications
PreAlgebra Integers
Real word situations that involve operations on positive and negative numbers

Scientific Units
Chemistry Introduction to Chemistry
How to use and convert scientific units.
scientific units time distance mass volume temperature density speed 
Scientific Units
Physics Introduction to Physics
How to use and convert scientific units.
scientific units time distance mass volume temperature density speed 
Evaluating Sine and Cosine at Special Acute Angles
Trigonometry Trigonometric Functions
How do we measure sine and cosine of pi/4?
sine cosine unit circle definitions of sine and cosine angles in standard position 
Evaluating Sine and Cosine at Special Acute Angles
Precalculus Trigonometric Functions
How do we measure sine and cosine of pi/4?
sine cosine unit circle definitions of sine and cosine angles in standard position 
Lines in 3D
Precalculus Vectors and Parametric Equations
How to find the vector and parametric equations of a line when given two points on the line.
the vector equation of a line position vectors direction vector parametric equations