Khan Academy
Khan Academy: Linear Equations Word Problems: Graphs
Solve word problems about real-world relationships that are given in graphs. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Graphing Linear Functions Word Problems
Graph the line that represents a real-world relationship that is given verbally. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Texas Education Agency
Texas Gateway: Graphing Proportional Relationships
Given a proportional relationship, students will be able to graph a set of data from the relationship and interpret the unit rate as the slope of the line.
Texas Education Agency
Texas Gateway: Modeling Data With Linear Functions
Given a scatterplot where a linear function is the best fit, the student will interpret the slope and intercepts, determine an equation using two data points, identify the conditions under which the function is valid, and use the linear...
Texas Education Agency
Texas Gateway: Coordinate Geometry: Parallel and Perpendicular Lines
Given characteristics of two lines, such as slopes and equations, the student will determine whether the lines are parallel, perpendicular, or neither.
Texas Education Agency
Texas Gateway: Coordinate Geometry: Special Segments
The student will derive and use the slope and midpoint formulas to verify geometric relationship that include parallelism and perpendicularity of lines. Then, the student will determine an equation of a line parallel or perpendicular to...
Curated OER
Webmath.com: Graph a Line
WebMath.com offers a java applet that allows you to input the slope of a line and a point on the line and gives you the equation, in slope-intercept form, of the line with the given slope that passes through the point. It also includes a...
Other
Taro: An Application of the Derivative
This is a somewhat lengthy site discussing applications of the derivative using a trajectory problem as a template for understanding the concept. The page begins by defining a quadratic equation given three distinct points and then...
Texas Instruments
Texas Instruments: The Phone Bill Problem
The student is given actual data and asked to find a line of best fit and to give "real world" interpretations of the slope and y-intercept. A great introduction to the 83/84 and its features.
Texas Instruments
Texas Instruments: Two Hot, Two Cold
In this activity, students collect both Celsius and Fahrenheit temperature data for several water samples of varying temperatures. They use the data to find a conversion equation that will calculate the Fahrenheit temperature for any...
Texas Instruments
Texas Instruments: Parallel and Perpendicular Lines on Ti Smartview
This is an introductory lesson on graphing parallel and perpendicular lines. The students will have a good visual on how these lines relate to each other. This also illustrates how to determine equations in slope-intercept form of a line...
Khan Academy
Khan Academy: Advanced Reflections
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes.
PBS
Pbs: The Lowdown: What You Need to Know About Immigration Reform
Interpret graphs showing changes over time in the percentage of foreign-born US residents and in annual deportations in this interactive from KQED. In the accompanying classroom activity, students use the interactive and look at how...
University of Regina (Canada)
Univeristy of Regina: Math Central: Tangent Lines and Circle Equations
This site offers a problem and solution to finding all possible slopes for a line tangent to a circle given a particular equation of a circle. Could be an interesting challenge for students.
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 3 [Pdf]
The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 4 [Pdf]
The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...
Curated OER
Mountains, Plains, Rivers, Isothermal Lines of the United States, 1873
A map from 1873 of the United States showing the physical features of mountain systems, plateaus, basins, plains, rivers, lakes, and coastal features, with elevations given for prominent peaks given in feet above sea level. The map is...
Curated OER
Etc: Maps Etc: Climate and Watersheds of the United States, 1868
A map from 1868 of the United States showing physical features, mean annual temperatures, rainfall distribution, watersheds, and principal products in the area. The average annual temperatures are shown by isotherms, with temperatures...