Triangle Proportionality
In this activity, students will study the concept of triangle proportionality.https://education.ti.com/en/activity/detail/triangle-proportionality
The Euler Line and Its Ratios
In this activity, students will explore the Euler Line of a triangle. Students will discover that the centroid, circumcenter, and orthocenter are collinear. Students will also find that if the triangle is isosceles, then the centroid, circumcenter, incenter, and orthocenter are all collinear. Stu...https://education.ti.com/en/activity/detail/the-euler-line-and-its-ratios
NUMB3RS - Season 3 - "Hardball" - Less it More
In "Hardball", an amateur mathematician named Oswald Kettner creates a mathematical process that uses baseball statistics to identify players who are abusing steroids. The FBI, with Charlie's assistance, is called in to protect Oswald from being a murder target for his findings. In this activity,...https://education.ti.com/en/activity/detail/numb3rs--season-3--hardball--less-it-more
Taxicab Geometry
Students begin a study of taxicab geometry by discovering the taxicab distance formula. They then use the definition of radius to draw a taxicab circle and make comparisons between a circle in Euclidean geometry and a circle in taxicab geometry. Lastly, they construct taxicab perpendicular bisect...https://education.ti.com/en/activity/detail/taxicab-geometry_1
Translations in the Plane
In this activity, students will perform a translation, and explore the properties of translations. In the second part of this activity, they will extend the concept of translations to the coordinate plane.https://education.ti.com/en/activity/detail/translations-in-the-plane
Relationship of Angles to the Circle
In this activity, students recognize the relationship of angles to its circles. They study the Inscribed Angle Theorem and its corollaries.https://education.ti.com/en/activity/detail/relationship-of-angles-to-the-circle
NUMB3RS - Season 2 - "All's Fair" - Guess My Type or Lose
In "All's Fair," Charlie attempts to use social image typology to analyze motivations and strategies to determine which person(s) would be most likely to commit a terrorist act. With social image typology, one can study why people make decisions that they do. Based on what they know about each su...https://education.ti.com/en/activity/detail/numb3rs--season-2--alls-fair--guess-my-type-or-lose
Right Triangle Trig
This is a way to use the TI-Navigator™ to check for an understanding of sin, cos, and tan before you move onto word problems.https://education.ti.com/en/activity/detail/right-triangle-trig
Triangle Midsegment Theorem
Students will use Cabri Jr. to discover that the midsegment of a triangle is parallel to the third side and half the length of the third side.https://education.ti.com/en/activity/detail/triangle-midsegment-theorem
Triangle Properties Assessment
This activity uses Cabri Jr. to assess the students' knowledge of various segements related to triangles: perpendicular bisector, median, angle bisector, midsegment, and altitude.https://education.ti.com/en/activity/detail/triangle-properties-assessment
The Tangent Ratio
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 that the second point that forms the line is not on the perpen...https://education.ti.com/en/activity/detail/the-tangent-ratio
Rotations in the Plane - Cabri Jr: Interactive
In this activity, you will explore the invariant properties of rotations and the results of rotations in the coordinate plane.https://education.ti.com/en/activity/detail/rotations-in-the-plane--cabri-jr-interactive
Transformation
In this activity, students study different types of transformations.https://education.ti.com/en/activity/detail/transformation
Reflections
Reviewing reflections of figures on a coordinate planehttps://education.ti.com/en/activity/detail/reflections_1
Transformational Puppet
This activity is designed to reinforce the concepts of reflections and translations by having the students create a virtual puppet using Cabri Jr. As they construct their puppets, students will reinforce their understanding of reflections and translations by making predictions about the location...https://education.ti.com/en/activity/detail/transformational-puppet_1
Ratios in Right Triangles
The study of properties of right triangles is a major topic in mathematics. In this activity, you will investigate three common right triangle trigonometric ratios.https://education.ti.com/en/activity/detail/ratios-in-right-triangles
REAL LIFE, REAL WORLD Activity - Architecture
Architects and Interior Designers use scale drawings that represent the house or room they are designing. This activity uses Cabri Jr. Geometry software to create a scale drawing with dilations.https://education.ti.com/en/activity/detail/real-life-real-world-activity--architecture
Measure Up!
In this activity, students' create a plot showing the heights of some of their classmates. They determine the extreme values and the median for the height data and construct a box-and-whisker plot to summarize the height statistics.https://education.ti.com/en/activity/detail/measure-up
REAL LIFE REAL WORLD Activity - Forestry
Forest industry professionals make measurements in their work using tools including the Clinometer and the Biltmore Stick. These tools are based on the concepts of similar triangles and trigonometric ratios in a right triangle. This activity uses Cabri Jr. Geometry software to model and solve f...https://education.ti.com/en/activity/detail/real-life-real-world-activity--forestry
Does Your Euler Line "Wiggle"?
The students will construct an Euler line and demonstrate it is an Euler line by "wiggling" the triangle to guarantee the correct centers remain on the line.https://education.ti.com/en/activity/detail/does-your-euler-line-wiggle
Reflections
This activity will let students understand the concept of reflection.https://education.ti.com/en/activity/detail/reflections
Sin, Cos, and Tan of Right Triangles
In this activity, students explore a right angled triangle and its trigonometric concepts. They investigate the trigonometric ratios for the angles of the triangle.https://education.ti.com/en/activity/detail/sin-cos-and-tan-of-right-triangles
Easy Programming of geometry formualas
Area, surface area, premiter, volume, you get the catch. All done so the student only has to input one or two numbers.https://education.ti.com/en/activity/detail/easy-programming-of-geometry--formualas
Special Parallelograms
In this activity, students will study special types of parallelograms like rhombus and rectangle, and investigate properties related to their diagonals.https://education.ti.com/en/activity/detail/special-parallelograms_1
Experimentally Calculating Pi
Because the diameter of a circle is related to the circumference of a circle, we can find this constant relationship by measuring several lids and fitting a regression line to the data. The slope of this line is pi. This is a great activity to allow students to discover that Pi is the relations...https://education.ti.com/en/activity/detail/experimentally-calculating-pi