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Mathematics
GeometryNumbersAlgebraFunctionsStatistics and probability
Functions
Cartesian coordinates
Experiment with the Cartesian coordinates of points in a plane.
You can drag the blue points to another position.
Table and graph of a function
Learn how to represent graphically one function, given as a value table.
You can change the function by dragging the blue points in the graph.
Formula, table and graph of a function
Learn how to graphically represent a function after the formula.
Positivity of a function
Experiment with functions, and observe the intervals in which it is positive or negative.
You can observe the function in another place by dragging the blue point in the graph.
Growth of a function
Experiment with functions, and observe the intervals in which it is increasing or decreasing.
You can observe the function in another place by dragging the blue point in the graph.
Properties of a function
Use this activity to represent any function, and observe its main features.
Linear functions
Experiment with linear functions and their graph.
Observe the line, its slope and y-axis in the source.
You can change the function by dragging the blue points in the plane.
Equation of the line after the graph
Practice obtaining the equation of a line after the graph.
Recognise the y-axis in the source and the slope on the graph, and generate the equation with them.
Do not forget the sign of the slope.
Intersections of the line with the axis
Practice finding the intersections with the axis of a line, given as an equation.
Quadratic functions
Experiment with the simplest quadratic functions and their graph.
Observe the relation existing between their coefficient and the value in x=1.
You can change the function by dragging the blue point in the plane.
Quadratic functions
Experiment with quadratic functions and their graph.
Observe the relation existing between their coefficients and the shape and position of the graph.
You can change the function by dragging the blue point in the plane.
Equation of the parabola after the graph
Practice obtaining the equation of a parabola after the graph.
Observe the values in x=0 and x=1, and do not forget to state the sign correctly.
Intersections of the parabola with the axis
Practice finding the intersections with the axis of a parabola, given as an equation.
Paths
Experiment with constant speed paths, and their graphical representation.
Learn how to interpret path, space, time and speeds charts.
Observe the examples proposed, or create your own formulations.
You can change the paths by dragging the blue points in the graph.
Speeds
Experiment with constant speed paths, and their graphical representation.
Learn how to interpret path, space, time and speeds charts.
Observe the examples proposed, or create your own formulations.
You can change the paths by dragging the blue points in the graph.
Simple functions
Practice the recognition of simple functions through its graph, by associating it to the formula.
There are linear, quadratic, inverse proportionality and exponential functions.