column operations 22 videos

Two Column Proofs
Geometry Triangles
How to organize a two column proof.
statement reason cpctc prove show congruent triangles 
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 
Matrix Operations
Algebra 2 Matrices
How to use simple matrix operations.
adding matrices scalar multiple matrix matrices 
Order of Operations
Algebra PreAlgebra
How to use the order of operations to simplify expressions.
simplify PEMDAS expression 
Order of Operations
PreAlgebra Integers
How to use the order of operations to simplify expressions.
simplify PEMDAS expression 
Set Operation: Union
Precalculus Linear Equations and Inequalities
How to define union.
Venn diagram union set operation or 
Set Operation: Intersection
Precalculus Linear Equations and Inequalities
How to solve define intersection.
Venn diagram union set operation and 
Set Operation: Union
Algebra 2 Linear Inequalities
How to define union.
Venn diagram union set operation or 
Set Operation: Intersection
Algebra 2 Linear Inequalities
How to solve define intersection.
Venn diagram union set operation and 
Complex Fractions and Order of Operations
PreAlgebra Fractions and MIxed Numbers
Simplifying fractions when simplifying with the order of operations

Common Algebra II Mistakes
Algebra 2 Additional Topics
How to avoid making an order of operation mistake.
pandas order of operations mistake error 
Vector Operations in 3D
Precalculus Vectors and Parametric Equations
How to perform vector operations like addition, scalar multiplication, the dot product, and finding the magnitude, in three dimensions.
vectors components vector addition scalar multiplication the dot product the scalar product magnitude length three dimensions 
Square Root Operations
Geometry Pythagorean Theorem
How to simplify square roots using two different methods.
Pythagorean theorem simplifying square roots adding square roots multiplying square roots rationalizing roots 
Square Root Operations
Trigonometry Pythagorean Theorem
How to simplify square roots using two different methods.
Pythagorean theorem simplifying square roots adding square roots multiplying square roots rationalizing roots 
Introduction to Matrices
Algebra 2 Matrices
How to talk about matrices.
matrix dimensions element row column 
Square Matrices
Precalculus Systems of Linear Equations and Matrices
How to determine whether two matrices can be multiplied, and if so, what the dimensions of the product will be.
matrices rows columns dimension matrix multiplication 
Solving Equations with Decimals
PreAlgebra Decimals and Percents
Review of operations with decimals in order to solve equations with decimals

Augmented Matrices
Algebra 2 Matrices
How to use matrices to solve a system of linear equations.
augmented matrix row operations scalar multiple 
Applications
PreAlgebra Integers
Real word situations that involve operations on positive and negative numbers