In math, factoring by grouping means that the greatest common factor needs to be found. Factor four different terms through grouping with help from a math author and teacher in this free video on math lessons.
Expert: Brian Leaf
Contact: www.brianleaf.com
Bio: Brian Leaf, MA, is the author of McGraw-Hill’s “Top 50 Skills for SAT/ACT Success” series.
Filmmaker: David Pakman
Duration : 0:2:30
Multiplying with decimal points is the same as any other multiplication problem, as long as the amount of decimal points for each number is noted. Move the decimal left for the number of decimals in a multiplication equation with help from a math teacher in this free video on using decimals in math.
Expert: Jimmy Chang
Contact: www.wearehdtv.com
Bio: Jimmy Chang has been a math teacher at St. Pete College for more than nine years. He has a master’s degree in math and his specialties include calculus, algebra, liberal arts math, and trigonometry.
Filmmaker: Christopher Rokosz
Duration : 0:2:17
Fractions are converted to decimals by dividing the numerator by the denominator. Convert fractions into decimals with tips from a math tutor in this free video on fractions.
Expert: Fernando Millan
Contact: www.tutormath.info
Bio: Fernando Millan is the owner and founder of Math Specialists LLC and has taught college mathematics courses at Miami Dade Community College, Barry University and University of Florida, among others.
Filmmaker: Paul Muller
Duration : 0:1:18
[NOTE: This video is only the first 18 minutes of the full lesson, please visit my website to purchase complete version] Lesson consists of providing you with a Self-Tutorial on how to solve linear equations. Tutor discusses what is an Equation, Solution, Solution Set, Equivalent Equations, Identity, Contradictions, Conditional Equations, Linear Equations, the Standard Form of a Linear Equation. I show you how to actually SOLVE linear equations going step-by-step. I don’t skip steps. I review some of the properties of Equality here too. I remind you to check the work done and how to solve linear equations using a calculator. At the end, you will know how to easily solve equations that look like:
2[y - (4y - 1)] = 5 - 9y
No word problems are done here. This is shown in DETAIL in Part 2 of the Lesson.
Duration : 0:18:25
This lesson consists of providing you with a basic review of the formulas from geometry you will most likely encounter in algebra (and other math classes like trigonometry and calculus). This is NOT a detailed, formal lesson.
Formulas and concepts covered include:
Angles (complementary & supplementary)
Triangles (perimeter and area)
Isosceles triangle
Equilateral triangle
Right triangle
The Pythagorean Theorem
Similar triangles
Perimeter and area formulas for Quadrilaterals (square, rectangle, parallelogram, trapezoid). Some diagonal formulas too, where applicable.
Circles (radius, diameter, circumference, area)
Cube (diagonal of face, diagonal of cube, surface area and volume)
Rectangular box [or Rectangular Parallelepiped] (diagonal of box, surface area and volume)
Prisms (Volume)
Pyramids (Volume)
Cone (slant height, lateral surface area, total surface area, volume)
Cylinder (lateral surface area, total surface area, volume)
Sphere (surface area and volume)
Duration : 0:23:8
[NOTE: This video is only the first 11 minutes of the full lesson, please visit my website to purchase complete version] This lesson consists of providing you with a Self-Tutorial on what is algebra, what are variables, constants, coefficients, terms, and expressions. The tutor explains the use of proper notation, how to combine like terms, find the negation of an algebraic expression, how to evaluate an expression (by hand and by using your calculator), and finally, there is a VERY detailed section on how to translate English phrases into algebraic expressions.
Duration : 0:11:22
How to multiply three digit numbers in a single step