Learners investigate the special properties of an altitude, a median, and an angle bisector and explore how these special segments divide the area of a triangle. The dynamic nature of Cabri Jr. allows pupils to form and verify conjectures.

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, have your class construct similar triangles using Cabri Jr so that they share a common vertex.

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...

In this real-data instructional activity, students use data from the 2008 Census Bureau to answer eight questions divided into four activities.  The topics covered include: place value, rounding, estimation, fractions, and percents.

Sixth graders study the concept of probability. In this probability activity, 6th graders create spinners that match specific sets of clues. Students use their spinners and worksheets to explore and predict probability.

Learners collect statistical data.  In groups, students play a dart game and then determine the distance between darts.  They collect the data and plot the information on a coordinate plane.  They identify the mean and the...

Young scholars discuss emotion, draw pumpkin faces and write about the way their pumpkin is feeling. In this emotions instructional activity, students make pumpkin faces and match pumpkin seeds to a card with seeds.

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 celebrate the summer by preparing a picnic together. For this early childhood lesson plan, students word together to prepare a picnic and develop fine motor and cooperative skills.

Students work in groups to make accurate measurements. In this area and perimeter measurement instructional activity, the student groups determine what they will measure and what tools they will need, then find the accurate measurement...

Fourth graders generate an oral presentation on the weather. In this weather lesson, 4th graders watch the weather for a week and record the data on a chart. Students give a weather report at the end of the week.

Students discover how flight is possible.  In this physics lesson, students investigate the properties of a blimp and gyro-copter, comparing rotating wings and fixed wings of aircraft.  Students create their own model aircraft...

Students balance equations using the correct method. In this algebra lesson, students solve linear equations using a virtual balance beam as a manipulative. They play games to reinforce the concept of equations being and staying balanced.

Young scholars define the slope of a line. In this algebra activity, students differentiate between parallel and perpendicular lines using their slopes. They rewrite equations in slope intercept form and explain the meaning of the slope.

Students play an interactive game online to learn ratios. In this statistics lesson, students solve problems in an online game about ratio and relating statistics to the real world. This lesson provides hands on as well as teaching time.

Second graders determine value of quarters and dollars, solve real-life problems involving money, and compare values of sets of coins and bills.

Fourth graders design a contraption, which contains five different examples of simple machines and works without intervention. They sketch designs and label its parts. They present their creations to the class and relate them to Rube...

Students examine raw data about temperatures throughout the world and record their observations. They work together to graph a specific year of data. They calculate an average temperature and discuss their findings.

Young scholars analyze patterns of exponential models by collecting data in paper folding and M&M investigations. They use graphing calculators to create scatter plots that lead to equations for the exponential models. They then...

Students listen to a read aloud of Mary Ann Hoberman's A House Is a House for Me before discussing the meaning of habitats and the different types of homes that people live in. Next, they pretend to be architects and design a home for...

Students explore how the International Space Station was built and how it provides first-hand experiences with the space program. They view the NASA engineers discussing the major components of the International Space Station, their...

Students assess how patterns, functions and algebra can assist NASA engineers design new ways of propelling spacecrafts. They explore how electricity and magnetism are replacing the fuel-consuming rocket propulsion. Electromagnetism is...

Students explore and discuss hurricanes, and examine how meteorologists, weather officers, and NASA researchers use measurement and data analysis to predict severe weather. They plot points on coordinate map, classify hurricanes...