FooPlot
 algebra
 functions
 graphing
 prediction
Pros
Kids can make a variety of graphs without an expensive graphing calculator.Cons
It needs way more support in terms of tutorials and sample lesson plans.Bottom Line
It's free, it's simple, and it does the job; you can plot functions, polar equations, parametrics, and points.None
FooPlot isn’t flashy or fun – it’s just a tool that makes graphs. If you have the need to make a graph, it'll be reasonably engaging, but overall it's missing relevance to really draw kids in.
Graphing is done quickly so that kids can focus on the concepts. Kids get to see immediate results when they change a parameter, which is helpful for getting a real understanding of the math involved.
It's accessible in five different languages  very cool. But it lacks help tutorials and extensions that would help students use the tool to their best advantage.
You'll love that all of the saved plots are considered public domain; they can be used to create worksheets, presentations, or assessments without copyright concerns. You can also use FooPlot to provide inquiry opportunities for kids. Prior to learning about how a particular function looks and responds, give kids a chance to manipulate it using the Fooplot tools. Kids'll be able to figure out for themselves how changing a function changes the graph. Give them prompts like, “What happens to the shape of the graph when you plot an even exponent as compared to an odd exponent?”
Read More Read LessFooPlot is a free online tool that lets kids plot functions, polar equations, parametric equations, and points. It's pretty simple to use; you can layer different graphs on top of each other, and a tool bar lets you find intersection points and roots. Other tools let students trace points on a graph, move it, and zoom in or out. Once a plot is created, it can be exported as a PDF or other various file formats for later review. FooPlot could be used in high school math classes ranging from algebra to precalculus.
Read More Read LessOne of the best things about FooPlot: It allows kids to quickly see multiple representations of the same mathematical idea. They immediately see that if they change the equation, the plot changes too. There certainly aren't any bells and whistles, but it's a serviceable tool that can be used in lieu of a graphing calculator. Most of the tools are easy to use, with the exception of the Zoom Box button, which doesn’t respond consistently.
As with any tool, there are limitations. FooPlot only finds the roots or intersections for some functions; it won't find them for polar plot types. Since FooPlot uses Newton’s method, it won't be able to find roots for certain functions, like those that exhibit fractal behavior or those you can’t differentiate.
Read More Read LessKey Standards Supported
Interpreting Functions  
HSF.IF: Analyze Functions Using Different Representations  
HSF.IF.7  Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.★ 
Reasoning With Equations And Inequalities  
HSA.REI: Represent And Solve Equations And Inequalities Graphically  
HSA.REI.11  Explain why the xcoordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.★ 
Trigonometric Functions  
HSF.TF: Model Periodic Phenomena With Trigonometric Functions  
HSF.TF.7  (+) Use inverse functions to solve trigonometric equations that arise in modeling contexts; evaluate the solutions using technology, and interpret them in terms of the context.★ 
See how teachers are using FooPlot
Teacher Reviews
 Easy Online Graphing Tool Provides Visualization3April 21, 2015
Lesson Plans
Lesson Plans

Transformations of Quadratic Functions in Standard and Vertex FormMathGrade 94 steps
February 2, 2016