Triangle incircle
A web page and interactive applet demonstrating the concept of the incircle of a triangle - the largest circle the will fit inside a triangle. The applet shows a triangle where the user can drag the vertices around. The incircle is continuously adjusted as the user drags the vertices. By experimentation ...
Triangle inequality
An interactive applet and associated web page that demonstrate the concept of triangle inequality. The applet shows a triangle where the vertices can be dragged to reshape the triangle It shows that no matter what you do, the longest side is always shorter than the sum of the other two. Applet can be ...
Triangle interior angles
An interactive applet and associated web page that demonstrate the properties of the interior angles of a triangle. The applet shows a triangle where the user can drag the vertices to reshape it. As it is being changed, the angles are continually updated, along with an expression showing that they always ...
Triangle midsegment
An interactive applet and associated web page that demonstrates the midsegment (midline) of a triangle. A triangle is shown that the user can reshape by dragging any vertex. As it is being dragged, the midline changes accordingly. From this can be seen that the midsegment is always parallel to the base ...
Orthocenter of a triangle
A web page and interactive applet demonstrating the concept of the orthocenter of a triangle. The applet shows a triangle where the user can drag the vertices around. The orthocenter and the altitude lines that generate it are continuously moved as the user drags the vertices. By experimentation the ...
Undecagon
A web page and interactive applet illustrating the properties of an undecagon (11 sided polygon). The applet shows an undecagon where the user can drag any vertex to reshape it. User can see that the interior and exterior angles are constant in a regular undecagon, but vary in an irregular version. ...
Discovering Decimals
Students will learn about and work with decimals to the thousandths using their handhelds. They will read a web page, show they knowledge in an animation and finally test their knowledge in a game.
Exploring Integers
Students will explore and implement the rules for adding, subtracting, multiplying, and dividing negative integers. This lesson would take place after each operation is explored individually.
Exploring Literature and Weather through Chirps
In this lesson students will learn, explore and experience using crickets' chirps to calculate temperature. Students will also read both fiction and nonfiction stories and books about crickets.
Exploring Roman Numerals
Students will construct their own knowledge of Roman numerals by using a Roman numeral calculator on their handhelds.
Getting to Know Numbers
Using the Handheld Computer to get students understanding the math concepts of a calendar (days of the week and months of the year), odd/even numbers, and numbers before and after (you know +1 –1 +5 – 5 that kind of stuff).
Mondrian: Rectangles, Squares, & Balance, Oh My!
Students will go online and learn about Piet Mondrian, by answering questions from a “Master” list. Students will then use “Clickomania”, first look at the Geometric patterns, and then to record them on scratch paper. Then we will use “QDraw” to make rectangles and squares, using textures for different ...
Area of Solids.
Finding area of rectangular solids and cylinders by cutting them into flat pieces and adding the areas.
Discovering Perimeters
By using string, students will discover a formula for finding the perimeter of a rectangle.
Introduction to Polar Coordinates
The student will be introduced to the definition of polar coordinates, how to graph them, and how to compare them to rectangular coordinates.
Mirror, Mirror on the Ground!
In this lesson, students will use their knowledge of similar triangles and indirect measurement to measure the heights of various objects.
Problem Centered Lesson on the Pythagorean Theorem
This lesson is designed to help students give meaning to solving problems using the Pythagorean Theorem in a useful and meaningful situation.
Respect and Responsibility Character Traits - Cut and Paste Activity
Using 20 different quotations that are out of sequential order--each with a relationship to the respect and responsibility character traits--students are to cut and paste (MOVE) the text in ascending sequential order, save, and print.
Trashketball Review for ratios, fractions, decimals and percents.
This lesson will help the students with changing from ratios to fractions, fractions to decimals, and decimals to percents.
Using Percent of Change to Measure NC Growth
Students will work in small groups to use the Internet to gather data on the population growth for each of the 100 counties in NC from 1992 to 1995. From this data students will find the percent of increase/decrease for the counties they have been assigned. As a follow-up, the students will enter their ...
