GeoGebra Worksheets

This worksheet shows how to divide a pizza among a different number of people. The user can change the number of pizzas and the number of people. The worksheet also shows step by step how a divided by b = the fraction a over b.

I thought it was interesting because I never took the time to think about such a simple concept. If a student had asked me to explain it, I don't think I would have known how; I probably would have answered that that's just the way it is.

This worksheet plots functions of t with polar coordinates. The user can change the function, and the minimum and maximum. It also has the option to show the values of the negative function.

I took a closer look at this worksheet because I have seen many programs that will plot a function with the Cartesian coordinate system, but not many that work with polar coordinates.

The worksheet has a triangle divided into various sections. The user can change the shape of the triangle and display segment lengths. There is a slider that rotates the sections of the triangle around to form a "rectangle." There is an option to form an equilateral triangle.

The name of the worksheet caught my attention. I had never heard of trying to form a rectangle from the pieces of a triangle, and I wanted to see how it worked. I spent a while investigating with different triangles because they don't really fit together to form rectangles or squares. I wish the worksheet included more information about what the puzzle actually is.

A simple animation showing that the square of a plus the square of b is equal to the square of c, with a,b,c as the sides of a right triangle and c as the hypotenuse. The worksheet takes pieces from the first two squares and fits them together to form the third square.

I had never seen this "proof" of the Pythagorean Theorem before. The focus was less on the triangle and more on the squares of the lengths of the sides, which made me think of the Theorem from a different perspective. I think it would be a good idea to show students different representations of a concept like this Theorem just so they can wrap their minds around it better.

A game where clicking a square either turns on or off the surrounding squares. There are patterns for the user to try to recreate.

I don't think this game has much use for teaching mathematics, but it sure kept me busy for a while. I am not very good at puzzle games, so I was extremely frustrated yet entertained as I fought to make the specific patterns.

This worksheet displays the graph of a line, with information about the change in x, the change in y, the slope m, the y-intercept b, how to calculate m, the equation of the line, etc. The sliders allow the user to change the values of the change in x, the change in y, and b to see how they affect the graph of the line.

I like this worksheet because it shows very clearly how each element affects the slope of a line. I like that it gives lots of information so students aren't ignoring different aspects of a line or its equation. It is simple to use and easy to read.