In this lesson, we learned how to evaluate the accuracy of written descriptions of mathematical expressions. We discovered that it is important to be specific and avoid descriptions that can apply to multiple expressions.

Emotion + icon = emoticon. Emoticon + kaomoji = emoji. Learn how we went from the basic, symbol-based emoticons in 1982 to the dynamic, animated emojis that are common on social media and smartphones these days.

Evaluate algebraic expressions with two or more variables and multiple steps.

In this video, the teacher explains how to write equivalent expressions using the distributive property of multiplication over addition. They demonstrate how to separate parts of an expression using parentheses and distribute the...

Learn how to find the area of a triangle. The area of a triangle is the measure of the region enclosed by the triangle. There are several methods that can be used to find the area of a triangle depending on the available information....

In this video, the teacher demonstrates how to solve a standardized math test question using the order of operations. The acronym PEMDAS is used to remember the order in which to evaluate expressions with multiple mathematical operations...

In This Episode, Tyler Teaches Us About Evaluating Equations knowing the Variable

👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...

👉 Learn how to verify the sum and difference of two angles trigonometric identities using the sum/difference formulas. To verify an identity means to ascertain that the left-hand side is equal to the right-hand side of the equality sign....

In this lesson, students will learn how to solve multiplication problems with multiple factors using the associative property. They will understand that just like how we can change the order of numbers when adding, we can also change the...

👉 Learn how to solve equations from word problems. A word problem is a real word simulation of a mathematics principle. We can solve equation(s) from a word problems by first understanding what the problem is asking. We then assign...

This video demonstrates how using parentheses changes the outcome of an expression and guides students through various examples to help them understand the concept.

In This Episode, Tyler Teaches Us About Choosing between 2 Salaries

👉Learn how to factor quadratics using the difference of two squares method. When a quadratic contains two terms where each of the terms can be expressed as the square of a number and the sign between the two terms is the minus sign, then...

In this video, students are shown how to solve multiplication problems by rearranging the grouping of factors to make the calculations easier. Through examples with rational numbers, fractions, and decimals, the students learn how...

Apply distributive property as a rule.

The video explains how to read and write equivalent expressions using variables and exponents. It covers the basics of algebraic expressions and introduces the concept of exponents and the order of operations. The video also provides...

This video provides examples and emphasizes the importance of following the correct order to obtain accurate results. By understanding and applying the order of operations correctly, students can solve mathematical problems and avoid...

In this video, the teacher explains how to write numerical expressions using exponents to solve problems. They use the example of choosing between receiving $4.00 that doubles daily for four days or accepting a total payment of $50.00...

👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...

This video is a lesson on how to use the distributive property to write equivalent expressions. The video starts by explaining how to break apart multiplication problems into smaller equivalent problems to make them easier to solve. The...

👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...

👉 Learn how to identify the vertex of a parabola by completing the square. A parabola is the shape of the graph of a quadratic equation. A quadratic equation can be written in the standard form (i.e. in the form y = ax^2 + bx + c) or it...

This video demonstrates how to solve a standardized math test question using the distributive property. The teacher explains how to identify equivalent expressions and walks through the process of distributing the factor and simplifying...