Alternate Interior Angles
Explore the relationships of the angles formed when two parallel lines are cut by a transversal.https://education.ti.com/en/activity/detail/alternate-interior-angles
Euler's Method
Dynamic graphical representation of Euler's method that can be plotted one step at a time.https://education.ti.com/en/activity/detail/eulers-method
Angle Relationships
In this activity, students explore the angle relationships that exist when two lines intersect. They begin by exploring vertical angles and linear pairs, and then expand their study to two lines and a transversal. They will see what relationships hold true when the two lines intersected by a tran...https://education.ti.com/en/activity/detail/angle-relationships
Angles and Similarity
Experiment with the measures of the angles of similar triangles to determine conditions necessary for two triangles to be similar.https://education.ti.com/en/activity/detail/angles-and-similarity
Triangle Sides & Angles
Students will explore side and angle relationships in a triangle. First, students will discover where the longest (and shortest) side is located relative to the largest (and smallest) angle. Then, students will explore the Isosceles Triangle Theorem and its converse. Finally, students will determ...https://education.ti.com/en/activity/detail/triangle-sides--angles
Scale Factor Area Perimeter
Explore the relationship of perimeter and area in similar triangles when the scale factor is changed.https://education.ti.com/en/activity/detail/scale-factor-area-perimeter
The Geometric Mean
In this activity, students will establish that several triangles are similar and then determine that the altitude to the hypotenuse of a right triangle is the geometric mean between the segments into which it divides the hypotenuse.https://education.ti.com/en/activity/detail/the-geometric-mean_1
The Hinge Theorems
Students will explore the inequality relationships that arise when some of the triangle congruence conditions are in place but others are not. The SAS Inequality Theorem and the SSS Inequality Theorem are often referred to as the Hinge Theorem and its converse. These two theorems concern inequali...https://education.ti.com/en/activity/detail/the-hinge-theorems_1
The Magic of Central Angles
This activity allows students to investigate the relationship between central angles and the arcs they intercept.https://education.ti.com/en/activity/detail/the-magic-of-central-angles
The Mailbox
In this lesson, students will visualize that areas of irregular shapes can be found by determining the sum of smaller, more familiar shapes.https://education.ti.com/en/activity/detail/the-mailbox-hs
Ratios of Similar Figures
Students explore the ratio of perimeter, area, surface area, and volume of similar figures in two and three dimensional figures.https://education.ti.com/en/activity/detail/ratios-of-similar-figures_1
Tangents to a Circle
Explore properties of tangent lines and how they differ from secant lines.https://education.ti.com/en/activity/detail/tangents-to-a-circle
Sine. It's the Law.
Students will investigate the ratio of the sine of an angle to the length of the opposite side.https://education.ti.com/en/activity/detail/sine--its-the-law_1
Secants, Tangents, And Angle Measures
This activity is intended to be used as an interactive tool to help students learn about the relationships between the the angles and arcs formed with intersecting secant and tangent lines.https://education.ti.com/en/activity/detail/secants-tangents-and-angle-measures
Secants, Tangents and Arcs
Explore the angle and arc relationships for two intersecting lines that intersect a circle.https://education.ti.com/en/activity/detail/secants-tangents-and-arcs
Special Segments in Triangles
In this activity, students construct medians, altitudes, angle bisectors, and perpendicular bisectors of triangles. They then drag the vertices to see where the intersections of the segments lie in relation to the triangle, and they measure distances to identify relationships. They see that the i...https://education.ti.com/en/activity/detail/special-segments-in-triangles_1
Remote Interior Angles
Students use the handheld activity and questions to explore remote interior angles.https://education.ti.com/en/activity/detail/remote-interior-angles
Sailing Away
In this activity, students will explore AAA and SSS relationships in triangles to support understanding of the concepts of triangle similarity and congruence.https://education.ti.com/en/activity/detail/sailing-away
Exploring Vertical Asymptotes
Students will be able to determine the domain of rational functions, use algebraic concepts to determine the vertical asymptotes of a rational function, determine the removable discontinuities of a rational function, and describe the graph of a rational function given the equation.https://education.ti.com/en/activity/detail/exploring-vertical-asymptotes
Balancing Equations
This lesson involves understanding what it means for an equation to be balanced in the process of solving linear equations with one variable.https://education.ti.com/en/activity/detail/balancing-equations
Interrogating Data by Random Sampling
This lesson involves using random sampling to make predictions about a population.https://education.ti.com/en/activity/detail/interrogating-data-by-random-sampling
Where is the Point?
Students are introduced to the Cartesian plane.https://education.ti.com/en/activity/detail/where-is-the-point
Long Run
This lesson involves investigating simulations used to observe long-run relative frequencies.https://education.ti.com/en/activity/detail/long-run
Linear Modeling
This lesson involves modeling relationship between variables related to the operational cost of airplanes.https://education.ti.com/en/activity/detail/linear-modeling
Supertall Skyscrapers
In this activity, students use their handhelds to measure scale drawings of famous “supertall” skyscrapers. They first check that the Sears Tower is drawn to scale and then use their measurements to calculate that scale. Next, they write and solve proportions to find the heights of other skyscrap...https://education.ti.com/en/activity/detail/supertall-skyscrapers