Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...

High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson requires the use of Cabri, Jr.

Pupils investigate similar triangles and proportions as they make conjectures about the length of sides of similar triangles. For this lesson plan, have your class construct similar triangles using Cabri Jr so that they share a common...

High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...

Have your learners investigate parabolas. In this Algebra II lesson, students explore the basic definition of a parabola by using Cabri Jr. to create a parabola given the focus and directrix.  Students interpret the equation for a...

Mathematicians investigate maximizing volume by learning to explore the problem in which they seek to maximize the volume of a cone.  Students solve the problem symbolically, graphically, and through the use of integration or...

Students analyze satirical articles.  In this elements of satire lesson, students read and analyze satirical articles from newspapers.  They create Venn diagrams to compare and contrast articles.  Students use calculators...

Learners solve problems dealing with points, lines and planes. In this geometry lesson, students differentiate between parallel lines and planes. They find the intersection of lines and planes.

Teach your class how to transform a graph! By identifying the domain and range of the functions, learners can observe the parabola and find the vertex of the transformed graph.

Students discuss the history and importance of magnets to the world. In this magnetism lesson, students write an essay of a world without magnets.  Students may research addition information to add details about uses of magnets.

Students, who are teachers, discover the hazards facing sailors hundreds of years ago as they prepare a lesson plan to use in their classroom. They examine what each group of students will investigate, and how the findings will be...

In this English worksheet, students read "Blind Pilot Flies from London to Sydney," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.

Pupils review horizontal and vertical shifts of a parabola and how they effect a specific quadratic formula. They play a basketball review game in which they try to find the right quadratic equation for a given problem in order to earn...

Tenth graders explore the properties of the incenter of a triangle. In this geometry lesson plan, 10th graders construct a triangle and the angle bisectors of each angle. The dynamic properties of Cabri Jr. allow students to locate and...

Learners study time and how to accurately calculate it.  In this time instructional activity students complete a lab activity in pairs and discuss their findings. 

Explore graphical representation of a real-life data set and determine the exponential regression model for the data in your classroom. Students also compare the estimated value to the given value by determining the percent error.

Students use the Internet to read about an explorer's survival in the Antarctic. They try to find a better route for him to have taken.

Students, who are teachers, make an astrolabe using the given pattern. They examine the uses of an astrolabe and apply the worksheets in their classrooms.

Students plot constellations on a grid map. They discuss the various ways early explorers planned their travels. Students identify and recognize major constellations. They color their maps and take them home to try to find various...

Learners investigate the Golden Ratio in this algebra I or geometry lesson. They explore the Golden Ratio as the conduct an experiment in which they collect various measurement from their team members and find the regression equations...

Students compare cat calls. In this wildlife lesson, students listen to cat calls and compose their own raps that feature the calls of Florida panthers.

Scholars investigate EE*Pro App. In this secondary mathematics lesson, let your class explore an all-inclusive App for electrical engineering students. The App is organized into analysis, equations, and references.

Your mathematicians will examine several conjectures regarding even and odd functions and investigate a formal proof of the conjectures using CAS. 

Learners engage in a lesson about finding the values of different graphs written in the vertex form. They rewrite each quadratic equation in vertex form while graphing the equation with the visual display of a parabola that matches the...