strategies for multiple choice 86 videos

ACT English Tips
ACT ACT English
Short, helpful video on ACT English tips by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
Sneaky English strategies picking up points even if your skills are rusty 
Behavioral Ecology
Biology Ecology
Understanding the parts of behavioral ecology.
behavioral ecology learning communication foraging reproductive strategies social behaviors 
The Inverse of a Square Matrix
Precalculus Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses.
matrices square matrices the identity matrix matrix multiplication invertible inverse matrix 
Derivatives of Polynomial Functions
Calculus The Derivative
How to compute the derivative of a polynomial function using two properties of the derivative.
the constant multiple rule the sum rule of derivatives polynomial functions derivative 
Multiplying and Dividing
PreAlgebra Whole Numbers
Looking at how multiplication represents repeated addition, as well as special cases of multiplying and dividing whole numbers

ACT Math Tips
ACT ACT Math
Short, helpful video on ACT Math tips by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
Top secret strategies that will get you the points even if you don't have the skills 
Population Ecology
Biology Ecology
Understanding the parts of population ecology.
population ecology interact population growth selection strategies population distribution demographics population evolution 
Unit Vectors
Precalculus Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j.
unit vectors length magnitude the unit vectors i and j vector addition scalar multiplication component form 
The Vector Equation of a Line
Precalculus Vectors and Parametric Equations
How to write the vector equation of a line.
position vector direction vector vector addition scalar multiple vector equation line 
The Midpoint and Distance Formulas in 3D
Precalculus Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions.
position vectors the vector from point a to point b the midpoint formula vector addition scalar multiplication 
Perpendicular, Parallel and Skew Lines in Space
Precalculus Vectors and Parametric Equations
How to determine whether two lines in space are parallel or perpendicular.
perpendicular lines dot product direction vectors parallel lines scalar multiple skew lines 
The Angle Between Planes
Precalculus Vectors and Parametric Equations
How to find the angle between planes, and how to determine if two planes are parallel or perpendicular.
normal vector the angle between planes perpendicular planes dot product scalar multiple parallel planes 
Solving Linear Systems Using Matrix Algebra
Precalculus Systems of Linear Equations and Matrices
How to convert a system of linear equations into a matrix equation and solve it.
matrices square matrices matrix equation coefficient matrix inverse matrix identity matrix matrix multiplication 
Simplifying Determinants
Precalculus Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations.
determinant row operations column operations interchanging rows common factors adding a multiple of one row to another 
Genotype
Biology Mendelian Genetics
Understanding genotype used in Mendelian genetics.
genotype phenotype homozygous heterozygous dominant recessive sex linked multiple alleles genetics 
How Do I Study For Algebra?
College counseling How to get better grades
A video that shows you how to study for algebra. A college admissions counselor explains different methods and strategies you can use to help you study for algebra.
college application applying to college college counseling high school counseling algebra 
Using the Conjugate Zeros Theorem
Precalculus Polynomial and Rational Functions
How we find the zeros of a polynomial function when one imaginary zero is known.
polynomial functions quadratic functions zeros multiplicity the conjugate zeros theorem the conjugate roots theorem conjugates imaginary numbers imaginary zeros