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Math Help 24/7
Welcome to Math Help 24/7
Below you will find math courses that have links to video tutorials created by Valencia math professors. The videos use a variety of technologies, all simple to view, but some will require flash player. If you need flash player installed, you will be given directions on how to install this at the time it is needed.
One type of video used is called a Pencast, created by the Livescribe pen. A tutorial video for getting the most out of viewing Pencast is also available.
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- Integer Basics
- Addition and Subtraction
- Multiplication and Division
- Pre-Algebra Skills
- Translating word problems into symbols
- Collecting like terms
- Order of operations
- Solving linear equations with variables on both sides
- Fraction Basics
- Addition and Subtraction
- Multiplication and Division
- Fraction Skills
- Solving equations with fractions
- Applications with fractions
- Decimal Basics
- Addition and Subtraction
- Multiplication and Division
- Decimal Skills, Percent, and Applications
- Solving equations with decimals
- Applications with percents
- Comparing fractions with decimals
- Perimeter, Area, Volume
- Perimeter
- Area
- Volume
- Measurement conversion
Joshua Guillemette
Courses: MAT0018C, MAT0028C, MAT1033C
Hobbies: NASCAR, Chess, and Reading Non-Fiction
Alison Hammack
Courses: MAT0018C, MAT0028C, MAT1033C
Hobbies: Parenting sons, Family adventures, Horses
Darren Lacoste
Courses: MAT0018C, MAT0028C
Hobbies: Strategy Games, Singing
Jennifer McCormick
Courses: MAT0018C, MAT0028C, MAT1033C, MAC1105, MGF1106, MAC1114
Hobbies:
Julie Phelps
Courses: MAT0018C, MAT0028C, MAT1033C, MAC1105
Hobbies:
- Linear Equations
- Solving equations that contain fractions
- Solving literal equations
- Solving linear inequalities
- Find equation of a line given a table or graph
- Linear Equation Applications
- Learning the four problem-solving steps
- Dimensions of a rectangle
- Distance, rate, time
- Sale, discount, discount rate
- Simple interest
- Percent increase/decrease
- Mixture or interest problems
- Graphs and Graph Information
- Interpreting slope
- Plotting points, writing ordered pairs
- Verifying solutions of equations
- Determining slope from points
- Graphing with intercepts
- Graphing horizontal & vertical lines
- Writing y=mx+b from graph
- Graphing from y=mx+b using slope
- Convert standard form to y=mx+b
- Completing tables to graph lines, mx+b
- Complete table to graph lines, standard form
- Complete table to graph line, standard=0
- Setting a graphing window outside of the standard window
- Exponents and Polynomials
- Order of operations
- Integer exponents
- Fractions
- Decimals
- Factoring
- Factoring polynomial expressions
- Solving trinomials by factoring
- Factoring a trinomial using x-factor
- Rational Expressions
- Addition and Subtraction
- Multiplication and Division
- Simplifying rational expressions
- Measurement conversion
- Radicals
- Simplifying radicals
- Addition and Subtraction
- Rationalizing the denominator
- Pythagorean theorem
Lisa Cohen
Courses: MAT0028C, MGF1106, MAC2233
Hobbies:
Joshua Guillemette
Courses: MAT0018C, MAT0028C, MAT1033C
Hobbies: NASCAR, Chess, Reading
Alison Hammack
Courses: MAT0018C, MAT0028C, MAT1033C
Hobbies: Parenting, Family Adventures, Horses
MAT0028
Darren Lacoste
Courses: MAT0018C, MAT0028C
Hobbies: Strategy Games, Singing
Jennifer Lawhon
Courses: MAT0028, MAC1105, MGF1106, STA2023
Hobbies: Running, Singing, Playing Piano
Julie Phelps
Courses: MAT0018C, MAT0028C, MAT1033C, MAC1105
Hobbies:
Amanda Saxman
Courses: MAT0028, MAT1033, MAC1105, MAE2801
Hobbies: Dancing, Singing, Reading
- Exponent review - negative and rational exponents
- Solving equations with rational expressions
- Solving equations using the quadratic formula
- Interpreting slope
- Solving inequalities graphically
- Word problems
- Factoring
- Solving linear inequalities
- Addition and subtraction of rational expressions
- Compound inequalities and interval notation
- Quadratic max/min applications
- Solving by extracting roots
- Solving systems of equations by elimination
- Equations of lines from a table
- Equations of lines from a graph
- Graphing inequalities
- Finding points of intersection on the calculator
- Negative exponents
- Solving systems of equations by substitution
- Division and multiplication of rational expressions
- Vertex form
- Completing tables on the calculator
- Intermediate Algebra Videos - (this link goes to a series of videos presenting exercises similar to those found in the current textbook by Mark Clark and Cynthia Anfinson)
Joel Berman
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Golf, Knitting, Riding my motorcycle
Lisa Cohen
Courses: MAT0028, MGF1106, MAC2233
Hobbies:
Abdellatif Dasser
Courses: MAP2302, MAC 2311, 2312, 2313, MAC2233, MAC 1105
Hobbies: Playing soccer, swimming, and reading
Joshua Guillemette
Courses: MAT0018, MAT0028, MAT1033
Hobbies: NASCAR, Chess, and Reading Non-Fiction
Alison Hammack
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Parenting sons, Family adventures, Horses
Jennifer Lawhon
Courses: MAT0028, MAC1105, MGF1106, STA2023
Hobbies: Running, Singing, Playing Piano
Amanda Saxman
Courses: MAT0028, MAT1033, MAC1105, MAE2801
Hobbies: swing dancing, tap dancing, singing, reading
- Exponent review - negative and rational exponents
- Inverse Functions - numerically, symbolically, and graphically
- Solving exponential equations
- Solving logarithmic equations
- Graphing piecewise defined functions
- Vertical and horizontal asymptotes
- Transformations- stretching and compressing
- Composition of functions
- Finding an appropriate viewing window
- Applications dealing with exponentials
- Converting back and forth between logs and exponentials
- Interpreting slope
- Function notation
- Graphing a System of Linear Inequalities
- Solving absolute value equations and inequalities
- Quadratic Equations and the Vertex Formula
- Factoring
- Solving equations using the quadratic formula
- Solving equations with rational expressions
- Finding points of intersection on the calculator
- Domain
- Average rate of change
- Quadratic Applications
- with teacher
- with Abdellatif Dasser
- Solving literal equations
- Solving equations graphically
- Solving using extraction of roots
- Continuous compounding vs compounding with k periods
- Finding zeros on the calculator
- Finding max/mins on the calculator
Joel Berman
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Golf, Knitting, Riding my motorcycle
Lisa Cohen
Courses: MAT0028, MGF1106, MAC2233
Hobbies:
Abdellatif Dasser
Courses: MAP2302, MAC 2311,2312,2312, MAC2233, MAC 1105
Hobbies: Playing soccer, swimming, and reading
Jody DeVoe
Courses: MAC2311,2313, MAP2302, STA2023
Hobbies: Kayaking, fishing, dogs, reading
Jennifer Lawhon
Courses: MAT0028, MAC1105, MGF1106, STA2023
Hobbies: Running, Singing, Playing Piano
Jennifer McCormick
Courses: MAT0018, MAT0028, MAT1033, MAC1105, MGF1106, MAC1114
Hobbies:
Luis Negron
Courses: MAT0018, MAT0028
Hobbies:
Kurt Overhiser
Courses: MAC 1105, MAC 2311, MAC 2312, MHF 2300
Hobbies: traveling, snorkeling, eating out at new trendy restaurants
Jolene Rhodes
Courses: MAC1140, MAC2312, Intensive Algebra
Hobbies: Painting, Bowling, Crafting
Amanda Saxman
Courses: MAT0028, MAT1033, MAC1105, MAE2801
Hobbies: swing dancing, tap dancing, singing, reading
Sylvana Vester
Courses: MAC1105, MGF1107, STA2023
Hobbies:
- Combinations vs permutations
- Survey problems with Venn diagrams
- How to use z-tables
- Truth tables
- Geometry - when to use what.
- Distinguishing between counting problems and probability problems
- Euler diagrams
- Probabilities: And vs Or
- Shading Venn Diagrams
- Union vs intersection
- Negations of "all" and "some"
Cathy Ferrer
Courses: MAT1033, MAC 1105, MAC1140, MAC1114, MAC2311,2312, MGF1106,1107, STA2023
Hobbies: Pottery, Painting, Card Making, Orchids, Bowling
- Percents
- Simple Interest
- Compound Interest
- Finance Problems Using the Finance Menu on the Calculator
- Extracting information from finance problems and using the calculator
- Modular arithmetic
- Check digit problems
- Intro to Graph Theory
- Greedy algorithm
- Euler Paths and Circuits
- Traveling Salesman and Hamilton Circuits
- Brute Force Method and Nearest Neighbor Method
- Euler's formula: Like "How many V and E does an icosahedron have?
- with teacher
- with teacher
- Voting methods
Cathy Ferrer
Courses: MAT1033, MAC 1105, MAC1140, MAC1114, MAC2311,2312, MGF1106,1107, STA2023
Hobbies: pottery, painting, card making, orchids, bowling
James Lang
Courses: MAC2311,2312, 2313 MAP2302, STA2023, MAC1114, MGF1107
Hobbies: Fishing, nerding, racquetball, basketball
- Making decisions with Hypothesis test
- Distinguishing between proportion and mean problems
- Confidence interval interpretations
- Sampling distributions for proportions
- Sampling distributions for means
- When to use s / √
n
- Understanding/finding a proportion and/or percent
- Using the normalcdf function on the calculator
Calculator Tutorials (TI-83/TI-84)
- Entering data into the calculator
- Histograms
- Finding mean, sd, and 5-number summary
- Regular Boxplot
- Modified Boxplot
James Lang
Courses: MAC2311,2312, 2313 MAP2302, STA2023, MAC1114, MGF1107
Hobbies: Fishing, nerding, racquetball, basketball
Sylvana Vester
Courses: MAC1105, MGF1107, STA2023
Hobbies:
Wakeel Zainulabdeen
Courses: MAC1114, MAC2233, STA2023
Hobbies:
- Exponent review with negative and rational exponents
- Obtaining demand or supply functions and relations to cost, revenue and profit.
- Integrations with u-substitutions
- Algebraic manipulation skills
- Equations of lines
- Factoring methods
- Solving exponential equations
- Finding limits when the denominator approaches
- Domain
Lisa Cohen
Courses: MAT0028, MGF1106, MAC2233
Hobbies:
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
Wakeel Zainulabdeen
Courses: MAC1114, MAC2233, STA2023
Hobbies:
- Exponent review with negative and rational exponents
- Completing the square
- Applications of linear functions
- Inequalities
- Determinant of 3 x 3
- Difference quotient or average rate of change
- Piecewise functions
- Solving log equations
- Solving exponential equations
- Zeros of polynomial functions
- Graphing rational functions
- Composition of functions
- Intervals of increasing/decreasing
- Complex roots of polynomial functions
- Solving rational equations/inequalities
- Factoring
- Gaussian elimination
- Solving equations with non-integer exponents like x2/3 or x-2
- Adding and subtracting fractions and rational expressions review
- Quadratics
- Polynomials
- Optimization
- Radicals
- Solving equations using substitution
- Inverse functions
- One-to-one functions
- Exponential functions
- Logarithmic functions
Joel Berman
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Golf, Knitting, Riding my motorcycle
Abdellatif Dasser
Courses: MAP2302, MAC 2311,2312,2312, MAC2233, MAC 1105
Hobbies: Playing soccer, swimming, and reading
Joshua Guillemette
Courses: MAT0018, MAT0028, MAT1033
Hobbies: NASCAR, Chess, and Reading Non-Fiction
Alison Hammack
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Parenting sons, Family adventures, Horses
Jim McCloskey
Courses: MAC1105, MAC1114, MAC2311, 2312, MAP2302
Hobbies:
Luis Negron
Courses: MAT0018, MAT0028
Hobbies:
Julie Phelps
Courses: MAT0018, MAT0028, MAT1033, MAC1105
Hobbies:
Jolene Rhodes
Courses: MAC1140, MAC2312, Intensive Algebra
Hobbies: Painting, Bowling, Crafting
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
Wakeel Zainulabdeen
Courses: MAC1114, MAC2233, STA2023
Hobbies:
- Graphing y = Asin(Bx + C) + k
/ y = Acos(Bx + C) + k
- Simplify inverse functions such as cos(sin^1(¼)) exactly
- Unit circle-special angles
- Using general (coordinate) definition for non-special angles
- Find the equation given a sine or cosine graph
- Laws of Sines: The Ambiguous Case
- Reference angles
- Solving trig equations
- Solving trig equations that require using an identity
- Solving trig equations you might see in Calculus
- Expressing infinite solutions for trig equations
- Solving applied triangle problems
- Finding the other trig solution
- Solving equations with 2θ, 3θ etc.
- Verify basic identities
- Vectors
- with teacher
- with teacher
- SOHCAHTOA
- with teacher
- with teacher
- Solving trig equations that require factoring
- Solving trig equations that require the quadratic formula
- Verifying double or half angle identities
- Reducing fractions with π
- with teacher
- with teacher
- Locating angles greater than 1 revolution (like 15π/7 or -1020°)
- Signs of sine and cosine
- Evaluating trignometric functions
Jody DeVoe
Courses: MAC2311,2313, MAP2302, STA2023
Hobbies: Kayaking, fishing, dogs, reading
James Lang
Courses: MAC2311,2312, 2313, MAP2302, STA2023, MAC1114, MGF1107
Hobbies: Fishing, nerding, racquetball, basketball
Jim McCloskey
Courses: MAC1105, MAC1114, MAC2311, 2312, 2313, MAP2302
Hobbies:
Jim Franklin
Courses: MAC1114, MAC2311, 2312, 2313, MAP2302
Hobbies:
Jennifer McCormick
Courses: MAT0018, MAT0028, MAT1033, MAC1105, MGF1106, MAC1114
Hobbies:
Kurt Overhiser
Courses: MAC1105, MAC2311, 2312, MHF2300
Hobbies: traveling, snorkeling, eating out at new trendy restaurants
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
Sylvana Vester
Courses: MAC1105, MGF1107, STA2023
Hobbies:
Wakeel Zainulabdeen
Courses: MAC1114, MAC2233, STA2023
Hobbies:
- Definite integral with u-sub
- Related rates
- Chain Rule
- Max/min applications
- Find derivative using the limit definition
- Volumes with Disks and Washers
- Volumes with Cylindrical shells
- Examples of problems with combined derivative rules
- Implicit differentiation
- Exponent review - negative and rational exponents
- Examples of integration problems in which you need to select a method
- Motion Problems
- Find the limit from table or graph
- Area between curves
Abdellatif Dasser
Courses: MAP2302, MAC 2311,2312,2313, MAC2233, MAC 1105
Hobbies: Playing soccer, swimming, and reading
Jody DeVoe
Courses: MAC2311,2313, MAP2302, STA2023
Hobbies: Kayaking, fishing, dogs, reading
Jim Franklin
Courses: MAC1114, MAC2311, 2312, 2313, MAP2302
Hobbies:
Kurt Overhiser
Courses: MAC 1105, MAC 2311, MAC 2312, MHF 2300
Hobbies: traveling, snorkeling, eating out at new trendy restaurants
Jolene Rhodes
Courses: MAC1140, MAC2312, Intensive Algebra
Hobbies: Painting, Bowling, Crafting
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
- Integration with Trig Substitution
- Find a Maclaurin series for a function
- Write a power series using combinations of basic series
- Integration using Partial Fractions
- Sequences vs series
- Use power series to estimate an integral
- Application of integration to fluid pressure
- Comparison test
- Conditional convergence vs absolute convergence
- Writing Taylor polynomials
- Area in polar coordinates
Abdellatif Dasser
Courses: MAP2302, MAC 2311,2312,2312, MAC2233, MAC 1105
Hobbies: Playing soccer, swimming, and reading
James Lang
Courses: MAC2311,2312, 2313 MAP2302, STA2023, MAC1114, MGF1107
Hobbies: Fishing, nerding, racquetball, basketball
Jim McCloskey
Courses: MAC1105, MAC1114, MAC2311, 2312, MAP2302
Hobbies:
Jolene Rhodes
Courses: MAC1140, MAC2312, Intensive Algebra
Hobbies: Painting, Bowling, Crafting
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
Wakeel Zainulabdeen
Courses: MAC1114, MAC2233, STA2023
Hobbies:
- Gradient vector and all of its properties
- Spherical coordinates
- Vector projections
- Applications of Triple Integrals
- Making contour diagrams
- with teacher
- with teacher
- Intro to Vectors
- with teacher
- with teacher
- Recognize the equations of some basic 3-d surfaces
- with teacher
- with teacher
- Set up integrals in Cylindrical coordinates
- with teacher
- with teacher
- Interpreting partial derivatives
- with teacher
- with teacher
- Set up integral for 2-D
- with teacher
- with teacher
- Motion problems
Jody DeVoe
Courses: MAC2311,2313, MAP2302, STA2023
Hobbies: Kayaking, fishing, dogs, reading
Jim Franklin
Courses: MAC1114, MAC2311, 2312, 2313, MAP2302
Hobbies:
- Writing a piece-wise defined function with unit step functions
- Mixture problems
- Determining the form of yp
- Determine behavior of solution in 2nd order linear without solving
- Laplace of unit step functions
- Set up DE from a verbal statement
- with teacher
- with teacher
- Applied first order
- Inverse Laplace resulting in unit step functions
- Phase line diagrams given a sketch of y vs dy/dx
- with teacher
- with teacher
Jim Franklin
Courses: MAC1114, MAC2311, 2312, 2313, MAP2302
Hobbies:
James Lang
Courses: MAC2311,2312, 2313 MAP2302, STA2023, MAC1114, MGF1107
Hobbies: Fishing, nerding, racquetball, basketball
Sidra Van De Car
Courses: MAC2233, MAC2311, 2312, MAP2302
Hobbies:
- Graphing a Sine Wave with Shifts
- Graphing a Cosine Wave with Shifts
- Writing Conclusions for Hypothesis Tests for Proportions
- Simplifying Compositions of Trigonometric and Inverse Trigonometric Expressions
- Differentiating Between Means and Proportions In Statistics
- Linear Regression Using a TI-83/84
- Solving Quadratic Equations using the Quadratic Formula
- Solving Compound Inequalities & Interval Notation
Sylvana Vester
Courses:
Hobbies:
Joel Berman
Courses: MAT0018, MAT0028, MAT1033
Hobbies: Golf, Knitting, Motorcycling
Lisa Potchen
Courses: MAT0028, MAT1033, MAC1105, MAC1114, MGF1106
Hobbies:
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