This lesson from Algebra Lab demonstrates "how to write equations of quantities which vary inversely." The lesson includes an example of a graph of this type of equation, and several example problems. This supporting material would be best used following some in-class instruction explaining how to solve inverse variation equations.
This tutorial from West Texas A&M University's Virtual Math Lab introduces bar graphs, line graphs, double line graphs and Venn diagrams to beginning algebra students. The unit explains each type of graph and includes examples. Students will use provided sample graphs to answer a series of questions about each example.
This video demonstration from Robert Ahdoot of yaymath.org explains direct and inverse variation. The video is a clip from an algebra II class. The instructor uses real-world examples to explain this mathematical concept, and includes interaction from his students. Flash player is required to view the video, and the running time for the video is 8:25.
This learning unit from Math Interactives demonstrates data display and graphs. A video is included which explains the role graphs have in the retail world. The interactive portion of the learning unit has students compare line graphs, bar graphs and circle graphs. They will compare two different data displays and determine if they represent the same data. This lesson will help students understand that the same data may be demonstrated in vastly different ways, and the importance of how data is displayed. A print version of the activity is available for download in Microsoft Word and PDF file formats.
This interactive mathematics resource allows students to explore and interpret Alberta provincial election results from 1905 to 2004 using a pictograph, line graph, bar graph, circle graph, or data table. The resource includes print activities, solutions, and learning strategies.
This multimedia mathematics resource shows how math is used at the Calgary Zoo to calculate how much it costs to feed the animals. An interactive activity allows students to change variables in linear equations to create unique ways of obtaining the same solution. A print activity is provided.
This interactive activity demonstrates the order of operations. The game asks students to click on the correct operation in a series of mathematical problems. Correct answers will increase the user's time for the next game. Students should have some knowledge of the order of operations prior to doing this activity. Two worksheets are also available for print or download in PDF file format.
This multimedia mathematics resource features a video that illustrates how parabolas and polynomial equations are used to study the flight path of objects. Using an interactive component, students explore and compare the flight paths and equations of a football, a mountain bike, and a skateboard. A polynomials print activity is provided.
This interactive mathematics resource allows the user to explore the outcomes resulting from tossing a coin, rolling a die, and using a spinner to perform single and double event probabilities. The resource includes print activities, solutions, learning strategies, and a board game.
This multimedia mathematics resource examines probability. A video illustrates how math is used to evaluate the danger of avalanches in the mountains of Alberta. An interactive component allows students to compare theoretical and experimental probabilities, as well as explore the Monte Carlo method. A probability print activity is also included.
This quick YouTube video from high school statistics teacher Roger W. Davis explains how to find one variable statistics using the TI-84 graphing calculator. The demonstration goes through three steps: entering the data, finding one variable statistics using the STAT menu, and interpreting the results. The data created includes mean, sum, median and more. Flash player is required to view this video, and the running time for the clip is 3:12.
This video demonstration explains graphing equations in slope intercept form. The narrator explains the equation form y=mx+b, slope, and how changing any of the variables changes where the line falls on the graph. The algebraic concepts are explained very clearly, and this excellent video is very easy to follow. Flash player is required to view the video, and the running time for the video is 3:55.
This video defines quadratic functions. Additionally, it explains how to graph these types of functions in a parabola and how the function affects the shape of the graph.
This video demonstration introduces order of operations for pre-algebra level learners. The presenter explains the correct order of operations (parentheses, exponents, multiplication/division, addition/subtraction) using a simple math problem as an introductory example. Flash is required to view the video. Running time for the video is 9:39.
This video, best for introductory algebra students, demonstrates solving linear equations by working backwards, using inverse or opposite operations. The video uses several examples to demonstrate balancing equations to solve them. This is an excellent resource to help students understand how to solve linear equations by undoing operations and balancing. Flash player is required to view the video. Running time for the video is 4:59.
This simple lesson explains proportions and ratios. A step by step example of how to solve a proportion is included as well as a word problem example. The lesson starts out with a one variable example and moves on to a two variable example. At the end of the lesson, several additional links to support materials are included.
This video explains how to solve quadratic equations with the factoring method. In 4 minutes 23 seconds, the two narrators explain in detail the steps required. Additionally, how these equations relate to objects and events in the real world such as roller coasters is covered.
This tutorial on solving systems of linear equations in two variables walks students through each step of solving, and provides a handy video lesson at the end in which an instructor guides the viewer through the solution.
This video demonstration from Watch Know Learn will help students learning about proportions. The video will help students with some knowledge of proportions by showing examples of how to solve them. The definition of a proportion is included as well as examples of how to cross-multiply to solve proportion problems. The demonstration shows what a non-proportion problem looks like and how to solve it as well as a few examples of using the lowest common denominator to solve proportions. Flash player is required to view the video, and the running time for the video is 8:09.