Activity
Texas Instruments

Texas Instruments: Ti 92 + Cabri Geometry for the Not Necessarily Advanced User

For Teachers 9th - 10th Standards
This activity is a tutorial on using the Cabri Geometry application. Students' perform geometric constructions which range from simple triangles to complex conics.
Activity
Texas Instruments

Texas Instruments: Dynamic Geometry: Basic Constructions

For Teachers 6th - 8th Standards
Students use the Cabri Jr. application to draw triangles and construct perpendicular bisectors on the sides of a triangles. They study the properties of a triangle and understand how the measures of angles of a triangle is always 180...
Activity
Texas Instruments

Texas Instruments: Cabri Geometry Tour

For Teachers 9th - 10th Standards
In this activity, students will practice some of the basic functions of the Cabri Geometry software, including use of the Pointer, Point, Line, Measure, and Construct toolbars.
Lesson Plan
Texas Instruments

Texas Instruments: Traditional Copy an Angle: Compass Construction Using Cabri

For Teachers 9th - 10th Standards
Use Cabri Jr to copy an angle. The activity is followed by a student-to-student interview/reflection sheet intended to require students to think, talk, and write about why the construction worked. The reflection sheet could be adapted...
Lesson Plan
Texas Instruments

Texas Instruments: Bring Geometry to Life

For Teachers 9th - 10th Standards
In this activity, young scholars use the Geometer's Sketchpad application to construct Euler's Line, Pythagorean Proof, and Fermat's point. They also investigate the concept of perimeter.
Activity
Texas Instruments

Texas Instruments: Cabri Geometry Tour

For Teachers 9th - 10th Standards
In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.
Lesson Plan
Alabama Learning Exchange

Alex: Build a City on Geometry

For Teachers 6th - 8th
The students will be split into small, cooperative groups and build a city following specific guidelines. The students will learn how a city is constructed with angles, intersections, parallel, intersecting, and transversal streets. They...
Lesson Plan
Texas Instruments

Texas Instruments: Parallelograms: Discovering Their Properties

For Teachers 9th - 10th Standards
Students use the TI-89 with CABRI Geometry to discover properties of parallelograms. They will construct a figure and use the definition to discover the figure is a parallelogram.
Activity
Texas Instruments

Texas Instruments: The Tangent Ratio

For Teachers 9th - 10th Standards
In this activity students explore the tangent ratio. Students construct a right triangle using perpendicular lines, and a line that forms the hypotenuse of the triangle. When students construct the hypotenuse line it is very important...
Activity
Texas Instruments

Texas Instruments: Properties of Parallelograms

For Teachers 9th - 10th Standards
This activity shows the student how to construct a parallelogram using Cabri Geometry. Questions are asked after the construction.
Lesson Plan
Alabama Learning Exchange

Alex: Platonic Solids Ornaments

For Teachers 9th - 10th
This is a hands-on activity that introduces learners to the five Platonic solids. Students will discover the special relationship between faces, vertices, and edges. Learners will research the Platonic solids and then construct and...
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Volume of a Cube

For Students 3rd - 8th Standards
"The volume of a cube can be developed by considering unit cubes, a single row (longs) of unit cubes or a single layer (flats) of cubes using this applet." This easy software makes it possible to easily construct a cube and take it...
Activity
Texas Instruments

Texas Instruments: Cyclic Quadrilaterals

For Teachers 9th - 10th Standards
Students construct cyclic quadrilaterals and investigate their properties. They determine which quadrilaterals from the quadrilateral hierarchy are cyclic.
Lesson Plan
Alabama Learning Exchange

Alex: Investigation of Special Segments of Triangles

For Teachers 9th - 10th
This lesson will enable students to investigate three special segments of triangles in a very concrete way. The students will fold paper triangles to create the segments. This lesson would be a great way for students to explore the...
Activity
Texas Instruments

Texas Instruments: Parallel or Perpendicular What's Your Inclination?

For Teachers 9th - 10th Standards
This activity has students discover the relationship between parallel and perpendicular lines and their slopes. After constructing these objects using CABRI Geometry II for the TI-89, slopes are measured. [Requires Adobe Reader.]
Activity
Texas Instruments

Texas Instruments: Centers of a Triangle

For Teachers 9th - 10th
The centroid, circumcenter, orthocenter, and incenter are the four classic centers of a triangle that are studied in geometry. In this activity, you will construct these center points and discover their properties. [Requires Adobe Reader.]
Activity
Texas Instruments

Texas Instruments: Real Life Real World Activity: Air Traffic Control

For Teachers 9th - 10th
In this lesson, students will model and solve air traffic control problems with geometry software. The Cabri Jr. application will be used to construct a model of the problem situation and concepts from trigonometry and proportions are...
Activity
Texas Instruments

Texas Instruments: The Area of the Trapeziod

For Teachers 9th - 10th
This activity is a based on an activity I saw in Exploring Geometry with the Geometer's Sketchpad. Student will construct a trapeziod and then use rotation to create a parallelogram from the trapeziod. The follow up questions lead the...