Latest Quizzes And Videos
Examine how to set up and solve a word problem by using a system of linear equations. I went over this problem with my 8th grade students.
Review how to dilate an object using the coordinates of each point. The new points are found by multiplying the coordinates of each vertex by the given scale factor. See the difference between stretching and shrinking when the scale factor is greater than 1 versus less than 1. The center of dilation in this problem is the origin or (0,0).
See how to use a circular grid to find the scale factor that an object was dilated.
Practice solving linear equations that have a variable on both sides of the equation. Also watch and learn how to solve Algebraic equations that contain fractions. This video shows 4 examples. Prior knowledge to solve these equations should include using the distributive property and combining like terms.
Watch and learn how to determine if a pair of shapes are similar or not. See various methods to check if one shape is a scale copy of another. Also review how to determine the scale factor.
Find the length of missing sides when given similar figures. This video shows how to find the scale factor of the shapes using corresponding sides. The scale factor is then used to find the length of line segments by setting up a proportion or by using percentages.
This video shows how to find the scale factor of similar objects. Also learn or review how to express scale factor as a fraction, decimal or a percentage. Learn that scaling up has a scale factor greater than one and scaling down is a scale factor less than 1.
Learn how to easily find the scale factor of similar figures. Also learn how to find the length of missing sides when given similar shapes. Learn the difference between scaling up or down.
Watch and learn how to solve systems of equations using elimination. Three examples are shown. This tutorial takes you through the steps to solve the 3 given problems.
Practice solving equations by setting expressions equal to each other. The expressions represent the measure of vertical angles. This video reviews how to solve an equation with a variable on both sides of the equation. Also watch and learn how to find the measure of unknown angles after solving equations.
This lesson shows how to find the measure of angles formed by transversals crossing parallel lines. Review how to identify corresponding angles. Also identify alternate interior angles to help find angle measure.
This video shows how to find the volume of a rectangular prism. Also learn the concept of volume as a 3-dimensional measurement using cubic units. Isometric dots are used to demonstrate the concept of volume as a measure of capacity.
Watch and learn how to identify angles formed by transversals and parallel lines which include: corresponding angles, same side interior angles, same side exterior angles, alternate side interior angles and alternate side exterior angles.
This video shows how to Algebraically set-up and solve problems involving angles formed by a transversal crossing parallel lines. This video also reviews corresponding angles, same side interior angles, alternate interior angles and same side exterior angles.
This video shows how you can perform a translation on the coordinate plane by adding integers. The video explains the difference between x-movements(left or right) and y-movements(up or down).
Learn how to dilate objects on the coordinate plane by using slope. Also learn how to perform a dilation by using an equation. The problem provides the scale factor and a center of dilation that is not the origin. This video was created to help my students for virtual learning!
This video introduces the transformations of translation, reflection, rotation and dilation. The difference between a rigid and a non-rigid transformation is demonstrated. Also learn about the basic characteristic of each transformation. This video was designed for virtual learning.
Watch and learn or review how to find the surface area of a triangular prism without using a formula.
Watch and learn how to graph a system of linear inequalities and show all the possible solutions by shading.
Review how to solve word problems involving the percent mark-up of wholesale prices to find retail prices. Also review how to calculate the percent mark-up when the wholesale and retail prices are given.
Review how to solve a system of equations by graphing. The equations are converted to slope-intercept form and then graphed. The examples given are intermediate to difficult so background knowledge on basic graphing would be helpful.
Solve a word problem which requires calculating the volume of a sphere and the volume of a cone.
This video shows how to solve 2 different word problems by setting up Algebraic equations. The second example requires setting up a a system of equations to solve. The problems involve distance and time(speed).
This video shows how to solve 7 different equations containing radicals (square root symbols).
Watch and learn how to simplify radicals by breaking a number down into its prime factors.
This video shows how to graph a quadratic equation by identifying the axis of symmetry and its vertex, and then finding ordered pairs by creating a symmetrical function table.
Review basic features of parabolas such as the vertex of a parabola, the minimum and the maximum, what direction the parabola opens up and its line of symmetry.
This video shows how to apply a strategy to solve quadratic equations when the "a" term is not equal to 1. The method shown is called the AC method. This algebra video tutorial demonstrates how to factor trinomials in the form ax^2+bx+c when a, the leading coefficient, is not 1.
This problem shows how to find the area the shaded part of a circle. The un-shaded portion inside the circle are smaller circles. To solve this problem you must know how to find the area of a circle which also requires you to identify the length of a circle's radius.
This video goes over how to solve 3 different types of percentage word problems using different strategies. Review how to set up a proportion and solve. Also watch and learn how to set up an Algebraic equation to solve.
Watch and learn how to find the fractional equivalent of repeating decimals in simplest form. This video shows how to convert different types of repeating decimals.
This video is just a quick review showing how to multiply decimals using the standard algorithm. Review where to place your decimal in you answer after multiplying.
This tutorial reviews how to find the area of a triangle and rectangle when their dimensions contain a decimal. Also review how to find the volume of a rectangular prism when using decimal multiplication.
Watch and learn how to write an expression to represent the area and the perimeter of a rectangle when the given width and length are Algebraic expressions. In this video you will review how to combine like terms and how to use the law of exponents. You will also see the difference between multiplying variables versus adding them.
This video visually demonstrates what a radian is. Also watch and learn how to convert angles given in degrees into radians and angles given in radians into degrees.
Watch and learn how to convert angles given in degrees to radians. Review commonly seen angles and their measure in radians using the unit circle. Also watch how to set up a proportion to change degrees into radians.
A quick review finding the area of a circle. The circle is shown on top of a graph. First you must identify the circle's radius using the graph and then solve.