Pupils investigate the number of points needed to determine a unique circle in a plane. Using Cabri Jr., they apply construction techniques to generate a circle that passes through a given number of points.

High schoolers investigate quadrilateral construction in this geometry lesson. They use Cabri Jr. to construct the different quadrilaterals from the quadrilateral hierarchy given minimal definitions. The lesson reinforces the difference...

Students factor polynomial equations. In this algebra lesson, students identify the zeros of the equations. They use algebra to rewrite word problems using symbols.

Middle schoolers explore distance-time plots. In this algebra lesson, they will investigate how different types of motion affect the distance-time plot.

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

Young mathematicians explore quadratics equations in this instructional activity. They investigate the relationship between the standard form and factored form of quadratic equations. Learners then examine the relationship between 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...

Students solve the area of a cross section. In this calculus lesson, students solve areas rotated and bounded by two functions. They solve using the washer method.

Have your class explore the concept of reflections as they use Cabri Jr. to construct a triangle and reflect it over a line. Learners reflect shapes across the coordinate plane and across the lines y = x and y = -x.

Students investigate geo-profiling.  In this secondary mathematics lesson, students use geo-profiling to determine the most probable location of a criminal.  Students find the centroid of a polygon where the vertices represent...

Explore the mathematical relationship between a solvent and solute. Learners use technology to measure the cooling patterns of a solvent with varying concentrations of solute. Through an analysis of the data, pupils realize that the...

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 investigate exponential decay.  Students explore the biological half-life of Cesium-137.  Students investigate the Goiania Accident of 1987 which is considered one of the worst incidents in the history of the Atomic...

Pupils investigate the acceleration of a car.  For this acceleration of a car lesson, students make a scatter plot of corvette acceleration data.  Pupils find a model to fit the data by taking the integral of the curve created...

Students explore the EasyData.  In this secondary mathematics lesson plan, students investigate the screens, menus, and  list of types of data collection available with the EasyData. 

Pupils investigate Riemann Sums. In this calculus lesson, students solve problems involving Riemann sums and Right Riemann Sums.

Students recognize relationships between mathematics and music by identifying the frequency and volume of a pure tone. Students discover that sound can be represented as a function and collect pure tones to generate smooth curves.

Students use water filled pipes to play a tune and consider the mathematics behind the sound waves. In this sound wave activity, students play a tune with water filled pipes. They create a mathematical model to evaluate the wavelengths...

Here is a set of lessons that explore conics in a number of different ways. Starting with modeling how a conic is produced by the way a plane cuts the cone, to solving complex word problems, algebra learners progress through a series of...

Learners use the Frayer model during problem solving. In this problem solving lesson, they examine multiple methods of data collection to solve real world problems. Resources are provided.

Ninth graders examine the application of statistical sampling, data collection, analysis, and representation that exists in schooling and teenage lifestyles in Japan and the United States.

What can a middle schooler do in 90 minutes? He can practice using the commutative, associative and distributive properties of addition and multiplication. He can also simplify expressions using the commutative, associative and...

Eleventh graders investigate logarithms.  In this Algebra II instructional activity, 11th graders explore the properties of logarithms that are used to simplify expression and solve equations.  Students confirm their...

In this limit activity, students evaluate functions and determine the limits of the function. This one-page activity contains 10 problems.