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There are 21 videos in this series:
When solving special right triangles, remember that a 30-60-90 triangle has a hypotenuse twice as long as one of the sides, and a 45-45-90 triangle has two equal sides. Memorize rules that relate to special right triangles with instructions from a college-level math teacher in this free video on geometry.
Factoring a parabola requires creating polynomials in the equation if there are none. Factor out a parabola to get the vertex value with instructions from a college-level math teacher in this free video on geometry.
The meaning of the word congruent is very similar to being equal, and it is often used in geometry in reference to side lengths and angle degrees. Understand the meaning of congruency with instructions from a college-level math teacher in this free video on geometry.
The invention of geometry is unclear, but the Mesopotamian people and the Ancient Egyptians recorded geometry as early as 3000 B.C. Understand the history of geometry with instructions from a college-level math teacher in this free video on geometry.
Trigonometry was invented by the Ancient Egyptians and Babylonians, who all worked with triangles, and it developed over time through the Greeks and the Indians. Hear a brief history of trigonometry with instructions from a college-level math teacher in this free video on geometry.
The history of Pascal's triangle begins with the Indians and the Persians who first started working on this pattern of numbers, and it developed through China in the 13th century hundreds of years before Pascal was even born. Learn about the evolution of Pascal's triangle with instructions from a college-level math teacher in this free video on geometry.
In math, a factor is a term that is a part of another term when multiplied, so the number one is a factor for all existing numbers. Understand factors as they relate to math with instructions from a college-level math teacher in this free video on geometry.
The definition of an axis in math is a number line that implies motion through positive numbers, negative numbers and zero as mapped on a graph. Define an axis, such as an x-axis and a y-axis, with instructions from a college-level math teacher in this free video on geometry.
The Pythagorean theorem is a formula used to solve side lengths of a right triangle, and it is expressed as A squared plus B squared equals C squared. Identify the different components of the Pythagorean theorem with instructions from a college-level math teacher in this free video on geometry.
The volume of a cylinder can be calculated by using the formula for the area of a circle multiplied by the height of the cylinder, expressed as pi R squared H. Calculate the volume of a cylindrical shape with instructions from a college-level math teacher in this free video on geometry.
Calculating the slope of a line will result in either a positive number, a negative number, zero or an undefined value, and the slope is always represented with the letter M. Determine the slope of a line with instructions from a college-level math teacher in this free video on geometry.
To calculate the area of a circle, multiply the number pi, which is approximately 3.14, by the squared radius. Determine the area of a circle, which will always be an approximation, with instructions from a college-level math teacher in this free video on geometry.
The quadratic formula is one of the most fundamental formulas in mathematics, and it is expressed as X equals negative B plus or minus the square root of B squared minus four AC over two A. Calculate the quadratic formula with instructions from a college-level math teacher in this free video on geometry.
Calculating the perimeter of a circle, which is known as the circumference, can be done by multiplying the number pi by two times the radius. Find the circumference of a circle given either the radius or diameter with instructions from a college-level math teacher in this free video on geometry.
The area of a triangle can be determined by multiplying half of the base by the height, as a triangle is essentially half of a quadrilateral shape. Calculate the area of a triangle with instructions from a college-level math teacher in this free video on geometry.
Finding the area of geometric shapes requires being familiar with their respective formulas, as each type of shape involves different methods and equations. Determine the area of various geometric shapes with instructions from a college-level math teacher in this free video on geometry.
To find the volume of an object in cubic feet, multiply the height, the length and the width together and convert the resulting value into feet if necessary. Determine the volume of an object with instructions from a college-level math teacher in this free video on geometry.
To measure the area of a given shape, a general rule of thumb is to multiply the length by the width and use square units to express the resulting value. Measure the area of any shape or space with instructions from a college-level math teacher in this free video on geometry.
Geometry can be a tricky subject, but being familiar with as many geometric shapes, theorems, formulas, postulates and characteristics as possible will greatly improve the understanding of the subject. Learn geometry more efficiently with instructions from a college-level math teacher in this free video on geometry.
To study for a math test, review as much homework as possible, be familiar with the terminology and do a self test out of a text book to practice solving math problems. Study for a math test through repetition and practice with instructions from a college-level math teacher in this free video on geometry.
Angles are used in everyday life by construction workers, surgeons, athletes and military personnel, as each of these careers require familiarity with precise angles and geometry. Find out how angles are used in the professional field by with instructions from a college-level math teacher in this free video on geometry.
Mathematics is the body of knowledge and the academic discipline that studies concepts such as quantity, structure, space and change. Mathematics education is a term that refers both to the practice of teaching and learning mathematics, as well as to a field of scholarly research on this practice. At different times and in different cultures and countries, mathematics education has attempted to achieve a variety of different objectives, including the teaching of basic numeracy skills to students and teaching both practical and abstract mathematics. In this free video series on geometry, a college-level math teacher discusses tips on solving geometry problems. Find out how to find the area of various shapes, and get information on widely-used geometry theorems and formulas. Discover the importance of geometry in everyday life.
Jimmy Chang 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. Chang was the campus coordinator for St. Pete College's honors college for several years.dkdk
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