Centers of a Triangle
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.https://education.ti.com/en/activity/detail/centers-of-a-triangle
Future Value of an Ordinary Annuity & Sinking Funds
In this activity, students carry out financial computations, involving annuity, and the future value of annuities. Students also deal with computations involving sinking funds.https://education.ti.com/en/activity/detail/future-value-of-an-ordinary-annuity--sinking-funds
Incenter of a Triangle
In this activity, students observe a special characteristic of the bisectors of the angles in a triangle. They test their conjecture by changing the size and shape of the triangle. NCTM Geometry Standard covered: Analyze characteristics and properties of 2- and 3-dimensional geometric shapes and ...https://education.ti.com/en/activity/detail/incenter-of-a-triangle
NUMB3RS - Season 3 - "Finders Keepers" - Barging In
In "Finders Keepers," the body of a diver is found in the ocean. The body is traced to a salvage barge that has a bloody handprint on it. After further investigation, it is discovered that the blood is not from the dead diver, but someone else murdered on the barge. In order to find the other vic...https://education.ti.com/en/activity/detail/numb3rs--season-3--finders-keepers--barging-in
Perpendicular Slopes
Students investigate the "negative reciprocal" relationship between the slopes of perpendicular lines. The final phase of the activity is appropriate for more advanced students as they are led through an algebraic proof of the relationship.https://education.ti.com/en/activity/detail/perpendicular-slopes_1
Circles in the Plane
In this activity, students will use the Cabri™ Jr. application to explore circles in a plane. They will investigate the relationship between the equation of a circle, the length of its radius, and the coordinates of its center.https://education.ti.com/en/activity/detail/circles-in-the-plane
Circumscribing a Circle About a Triangle
In this activity, students use the distance of the circumcenter of a triangle to each vertex of the triangle as the radius and draw a circle using the circumcenter as the center. NCTM Geometry Standard covered: Analyze characteristics and properties of 2- and 3-dimensional geometric shapes and de...https://education.ti.com/en/activity/detail/circumscribing-a-circle-about-a-triangle
Simulating Coin Toss Probability
Students will understand patterns, relations, and functions.https://education.ti.com/en/activity/detail/simulating-coin-toss-probability
Concurrency & the Circumcenter
In this activity, students will explore the perpendicular bisectors of the sides of a triangle. Students will discover that the perpendicular bisectors are concurrent and that the point of concurrency is the circumcenter. Students should discover the relationship between the type of triangle and ...https://education.ti.com/en/activity/detail/concurrency--the-circumcenter_1
Investigating Laws of Exponents
Represent and analyze mathematical situations and structures using algebraic symbols.https://education.ti.com/en/activity/detail/investigating-laws-of-exponents
It's a Radical, Rational Universe!
Students explore values and optimization of rational and radical functions in real contexts by graphing and using spreadsheets.https://education.ti.com/en/activity/detail/its-a-radical-rational-universe_1
Proof of Identity
Students use graphs to verify the reciprocal identities. They then use the calculator's manual graph manipulation feature to discover the negative angle, cofunction, and Pythagorean trigonometric identities.https://education.ti.com/en/activity/detail/proof-of-identity
Connecting Factors and Zeros
Students will determine if a quadratic formula is factorable, then they will factor the equation, set each factor equal to 0, and solve for X. (Categories include linear functions, graphing, and factoring.)https://education.ti.com/en/activity/detail/connecting-factors-and-zeros
Transformers
Students explore the different transformations of several polynomial functions.https://education.ti.com/en/activity/detail/transformers
Living on the Edge
Students find the edge length of an octahedron when given its volume.https://education.ti.com/en/activity/detail/living-on-the-edge
Finite Differences
Students will understand patterns, relations. and functions using mathematical models to represent and understand quantitative relationships.https://education.ti.com/en/activity/detail/finite-differences_1
At a Snail's Pace
In this activity, students plot a mathematical relationship that defines a spiral. They use technology to create a spiral and to plot a set of ordered pairs.https://education.ti.com/en/activity/detail/at-a-snails-pace
Order Pears
Students investigate ordered pairs by graphically exploring the coordinates of a point on a Cartesian plane and identifying characteristics of a point corresponding to the coordinate.https://education.ti.com/en/activity/detail/order-pears
What Goes Around Comes Around - But Can You Measure It? (Perimeter, Area, and Volume)
Students find the area and the perimeter for several geometric shapes. They also determine the surface area and volume of spheres.https://education.ti.com/en/activity/detail/what-goes-around-comes-around--but-can-you-measure-it-perimeter-area-and-volume
Expanding Space Station
Students will find and compare function rules for a given pattern. They also evaluate variable expressions.https://education.ti.com/en/activity/detail/expanding-space-station