Inscribed Regular Polygons
Students will calculate the changing area and perimeter of inscribed polygons as the number of sides increase. The measurements will be recorded in a spreadsheet for analysis. Students will be learning to use the measurement tools and the Hide/Show function of the TI-Nspire. Students will be aske...https://education.ti.com/en/activity/detail/inscribed-regular-polygons
Polythagoras
This activity explores (a) relationships among non-square regular polygons constructed on the sides of a right triangle and (b) visual and numerical proofs of the Pythagorean Theorem using rotations and non-square polygons.https://education.ti.com/en/activity/detail/polythagoras
Can You Make My Graph?
Students are to find the equations of graphs of trigonometric functions (using sine and cosine) and will also identify values for the amplitude, period, phase shift, and vertical shift. This activity is a modified version of the activity "What's the Equation?" originally made by Lauren Jensen.https://education.ti.com/en/activity/detail/can-you-make-my-graph
Verifying Trigonometric Identities
The student will look at the different tools needed to verify trigonometric identitites including reciprocals, cofunctions, quotient, and Pythagorean identities. Students will also be introduced to the "Hexagon".https://education.ti.com/en/activity/detail/verifying-trigonometric-identities
From 0 to 180 - Rethinking the Cosine Law with Data
The goal of this activity is for students to experience a data-driven, inductive investigation leading to the cosine law. This could be used in addition to or instead of the traditional proof to deepen the understanding of the behavior of triangles and make the concepts more accessible to more s...https://education.ti.com/en/activity/detail/from-0-to-180--rethinking-the-cosine-law-with-data
T³™ Regional Summit: Colorado| Texas Instruments
...f Continuing Professional Education (CPE) in Texas. Continental breakfast and lunch are included. We will follow local protocols and safety recommendations and request that all attendees do the same for the health of all in attendance. In the event the summit is canceled, all registra...https://education.ti.com/en/t3-professional-development/for-teachers-and-teams/regional-summits/2025-south-texas-summit
Investigating the Pythagorean Theorem
Use your TI-84 Silver Plus calculator and the Carbri Jr file 'PYTHAG' to have students investigate what happens to the results of the Pythagorean Theorem for acute, right, and obtuse triangles.https://education.ti.com/en/activity/detail/investigating-the-pythagorean-theorem
Properties of Parallelograms
Students will use Cabri Jr. to construct a parallelogram. They discover three properties of parallelograms in this activity: opposite sides are congruent, opposites angles are congruent, and diagonals bisect each other.https://education.ti.com/en/activity/detail/properties-of-parallelograms_6
The Pythagorean Theorem And Classifying Triangles
Students will use the converse of the Pythagorean Theorem to predict a triangle's classification. The Cabri Jr. App on the TI-83+/84+ family will be used to create triangles and find their measurements.https://education.ti.com/en/activity/detail/the-pythagorean-theorem-and-classifying-triangles
Right Triangle Vocabulary
Using Activity Center, students will "march" to the appropriate triangle segment. This activity allows the entire class to demonstrate understanding of vocabulary words necessary to start right trianlge trigonometry: opposite side, adjacent side and hypotenuse side. This activity is a good cl...https://education.ti.com/en/activity/detail/right-triangle-vocabulary
REAL LIFE REAL WORLD - Avalanche Rescue
When hikers and skiers go into terrain with a risk of avalanches, they take safety equipment including avalanche rescue beacons. An avalanche rescue beacon sends and receives electromagnetic field signals that travel in circular patterns. The search pattern used to locate a beacon buried in the...https://education.ti.com/en/activity/detail/real-life-real-world--avalanche-rescue
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
"Snail Mail" Postal Rate History
This is a listing of the First Class Postal Rates for students to create a scatter plot and appropriate model. It generates good discussion as to which data is appropriate which changes models from exponential to linear.https://education.ti.com/en/activity/detail/snail-mail-postal-rate-history
Binomial Simulation Lab - Using ProbSim App
Binomial simulation using TI-83+ or TI-84+ graphing calculators. Students will use the Probability Simulation application on the calculator to simulate Eric Gordon shooting free throws. TI-Navigator™ instructions are also included.https://education.ti.com/en/activity/detail/binomial-simulation-lab--using-probsim-app
The Golden Ratio
The students will engage in a hands on activity to determine how they fit into the golden ratio which is considered the mathematically perfect ratio. Is it necessary or important to relate to this number?https://education.ti.com/en/activity/detail/the-golden-ratio
Areas of Regular Polygons and Circles
Use Cabri Jr. to find the area of several regular polygons and then use that investigation to derive the area of a circle from a many sided polygon.https://education.ti.com/en/activity/detail/areas-of-regular-polygons-and-circles
Investigating the Angle-Sum Theorem of Polygons
This activity will allow students to use Cabri Jr. to find the sum of the measures of interior angles of convex polygons and visually see how the Interior Angle Sum Theorem works.https://education.ti.com/en/activity/detail/investigating-the-anglesum-theorem-of-polygons
Rational Expression Multiplication
This StudyCards™ set uses guided discovery concepts to develop ideas for functions operations, building from rational expression multiplication and division algorithms. Use with Foundations for College Mathematics, ch. 7.3.https://education.ti.com/en/activity/detail/rational-expression-multiplication
Measuring Polygons - An Introduction to Cabri Jr.
This activity is designed as an intoduction to using the Carbr Jr. application on the TI-83+/84+ calculators. Students are guided through the menu system and are shown how to draw triangles, quadrilaterals and and a pentagon. Perimeter and angle measurements are also explained. The activity leads...https://education.ti.com/en/activity/detail/measuring-polygons--an-introduction-to-cabri-jr
Writing Linear Equations Using Activity Center and Houses!
Students will write linear equations given two points. The two points will be the location of the students' houses. They will partner with someone and try to make an equation that will go through the two houses which are coordinates shown on the activity center background.https://education.ti.com/en/activity/detail/writing-linear-equations-using-activity-center-and-houses