Students find the length of diagonals.  In this Pythagorean theorem lesson, students use the Pythagorean theorem to determine the length of diagonals. 

Students linearize data to determine if an exponential model is suitable. In this linearizing data to determine if an exponential model is suitable lesson plan, students graph the residuals of sets of data that appear to have an...

Students discover the value of Pi.  For this value of Pi lesson, students measure the circumference and diameter of various circles on their graphing calculator.  Students find the ratio of the circumference to the diameter and...

Young scholars analyze satirical articles.  For this elements of satire lesson, students read and analyze satirical articles from newspapers.  They create Venn diagrams to compare and contrast articles.  Young scholars use...

Students investigate measurement.  In this fifth/sixth grade mathematics lesson, students explore the relationship between inches and centimeters.  Students measure their height in inches or centimeters and convert the...

Students explore the concept of exponential growth.  In this exponential growth lesson, students manipulate power models with base 2.  Students discuss what would happen if you doubled a penny over the course of 20 days. ...

Ninth graders investigate divisibility rules.  In this middle school mathematics/Algebra I lesson plan, 9th graders explore the divisibility rules of 7, 11, and 13.  Students examine certain six-digit numbers that are divisible...

Students work with large numbers when determining the height of a stack of $20 bills.

Young scholars investigate the skin surface to body area ratios for different animals.  In this seventh/eighth grade mathematics/science lesson, students explore heat transfer between an animal’s body and the environment. ...

Learners explore how changing an angle in a triangle changes the ratio of the sides. They also explore how changing the sides can make changes to an angle in a triangle. Finally, they determine how two different pairs of sides, in the...

Your learners will construct the perpendicular bisector of a chord. They use Cabri Jr. to construct a circle and a perpendicular bisector of a chord. They then measure lengths of the chords and perpendicular bisectors. Learners use...

Students explore the concept of congruent triangles.  In this congruent triangles lesson, students use Cabri Jr. to construct two congruent triangles using circles.  Students determine if the two triangles are congruent by...

Young scholars explore game theory.  In this secondary mathematics lesson, students plat the game of HOG using dice and explore the optimal strategies.  Young scholars play the game three ways:  any number of dice, a fixed...

Students explore proportional reasoning.  For this middle school mathematics lesson students investigate scale drawings as they create a proportional representation for the carvings on Mt. Rushmore.

Students use the data from USA TODAY Snapshot "World population milestones" to explore and explain the trends in the world population.

Students read about the changes in the "new money" and then create a graph to represent various combinations of currency produced.

Students conduct experiments with plants.  For this photosynthesis lesson, students examine plants under different types of lights.  They calculate the amount of dissolved ocygen concentration and compare it to the formula for...

Bobo the Boxer needs a pen and algebra learners need to find the maximum area that can be created from a fixed amount of fence.  A graphing calculator is used to assist in their exploration. 

Practice consumer mathematics through by investigating home mortgages. Budding economists find the interest rates for 30-year and 15-year loans and calculate the estimated monthly payments. They use their data to compare periods of time...

Students take an Algebra II/Trigonometry sample test.  In this Algebra II/Trigonometry sample sample test lesson, students take a sample test for Algebra 2/Trigonometry.  Students solve 39 multiple choice/short answer...

Students explore slavery by reviewing the written laws intended to keep African Americans subservient. In this U.S. slavery lesson, students analyze a time-line of the history of African Americans. Students discuss the patterns of the...

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

Young mathematicians represent a triangle with a matrix and use the determinant to find the area of three given triangles. Learners also verify the formula for area of a triangle. 

Young scholars compare two object as they find the distance between them. For this geometry lesson, students create an equation describing the distance of time as a function. They use the navigator to observe the distance.