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Curated Video
Dividing Fractions by Fractions
In this video, students learn how to divide fractions by fractions by thinking about equal sized groups. The teacher explains the concept using visual representations and examples. Students are also reminded to check their answers using...
Curated Video
Understanding Negative Fractions
This video lesson explains different ways to write negative fractions by viewing them as division problems. It covers scenarios where the negative sign can be placed with the numerator, denominator, or the entire fraction.
Curated Video
Swimming Competition (Use equivalent fractions to solve word problems involving subtraction of fractions with like and unlike denominators)
Jason is training for the upcoming national swimming competition. This morning he swam a few laps which totaled seven ninths of a mile. In the evening he swam some more laps which totaled two thirds of a mile. How much different is the...
Curated Video
Representing Fractions Greater than One on a Number Line
In this video, the teacher explains how to represent fractions greater than one using a number line. They demonstrate different ways to show fractions, such as using area models and sets. The teacher also emphasizes the importance of...
Brian McLogan
Evaluate the geometric sequence given two values
π Learn how to find the nth term of a geometric sequence. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. A geometric sequence is a sequence in which...
Brian McLogan
What are the formulas for arithmetic and geometric sequences
π Learn about sequences. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. There are many types of sequence, among which are: arithmetic and geometric...
Brian McLogan
Solving and graphing an inequality by multiplying by a fraction on one side ex 12
π Learn how to solve multi-step linear inequalities having parenthesis. An inequality is a statement in which one value is not equal to the other value. An inequality is linear when the highest exponent in its variable(s) is 1. (i.e....
Brian McLogan
Graphing a vertical line by creating a table of values
π Learn how to graph linear equations with one variable. When given a linear equation with one variable in the form x = a or y = c, the two forms of linear equations results in a vertical and horizontal lines respectively. The graph of...
Brian McLogan
Solving an equation for y and x using two steps
π Learn how to solve literal equations. A literal equation is an equation where the unknown values are represented by variables. To solve a literal equation means to make one of the variables the subject of the formula. To do this, we...
Brian McLogan
Solving two step equation with two terms in the numerator
π Learn how to solve two step rational linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. A rational equation is an equation containing at least one fraction whose numerator and (or)...
Brian McLogan
Solving an equation with two terms in the numerator
π Learn how to solve two step rational linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. A rational equation is an equation containing at least one fraction whose numerator and (or)...
Brian McLogan
Solving an equation with multiple fractions
π Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse...
Brian McLogan
Adding unlike denominators - free online tutoring, 1/2 + 1/3
π Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract fractions having the same denominator, we add the numerators and retain the (common) denominator. This is...
KnowMo
Applying Negative Indices: Understanding and Using the Rule
This video is a lecture about negative indices in math. The instructor explains a specific rule for dealing with negative powers, using algebra manipulation to illustrate where the rule comes from. The technique involves finding the...
Brian McLogan
Evaluate for sine, cosine and tangent of an angle using the unit circle
π Learn how to evaluate the six trigonometric functions of a given angle. When given an angle we locate the angle on the unit circle. Then using the coordinate of the terminal side of the angle on the unit circle and the definitions of...
Brian McLogan
Using sum of two angles to evaluate an angle in radians for tangent, tan
π Learn how to evaluate the tangent of an angle in degrees using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, then we use the unit circle and the...
Brian McLogan
Simplifying a trigonometric expression by getting common denominators
π Learn how to simplify rational identities involving addition and subtraction. To simplify rational identities involving addition and subtraction, first, we find the LCM of the denominators which most time is the product of the terms in...
Brian McLogan
Simplify a Complex Rational Fraction
π Learn how to simplify complex fractions. To simplify complex fractions having a fraction as the numerator and another fraction as the denominator we first factor the expressions that can be factored and then we multiply the fraction in...
Brian McLogan
Learn how to evaluate using the difference of two angles for sine
π Learn how to evaluate the sine of an angle in radians using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, then we use the unit circle and the...
Brian McLogan
Applying the law of sines when no triangle exists
π Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions and...
Brian McLogan
Learn how to divide two rational monomials and simplify
π Learn how to simplify expressions by dividing its terms. Remember that dividing a fraction is the same as multiplying by the reciprocal. When multiplying expressions, each individual term of the expression is multiplied to its like...
Brian McLogan
Learn how to take the square root of a number using the identity element
π Learn how to find the square root of a number. To find the square root of a number, we identify whether that number which we want to find its square root is a perfect square. This is done by identifying a number which when raised to...
Brian McLogan
How to find the multiplicity zeros, intercepts with fractions
πLearn how to solve quadratic equations by factoring when a is equal to 1. A quadratic is an algebraic expression having 2 as the highest power of its variable(s). To factor an algebraic expression means to break it up into factors...