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
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 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
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
Solving Systems by Graphing
Explore moving a point to illustrate solving systems of linear equations graphically.https://education.ti.com/en/activity/detail/solving-systems-by-graphing
Solving Systems by the Elimination Method
Use equivalent equations and the method of elimination to solve a system of equations.https://education.ti.com/en/activity/detail/solving-systems-by-the-elimination-method
Inscribed Angles
Students use animation to discover that the measure of an inscribed angle is half the measure of its intercepted arc, that two angles that intercept the same, or congruent, arcs are congruent, and that an angle inscribed in a semi-circle is a right angle. They then discover that the opposite angl...https://education.ti.com/en/activity/detail/inscribed-angles_1
Cancer Clusters
Students will investigate cancer incidence rates in a number of states. Hypothesis testing is introduced and used along with a two-proportion z-test to compare cancer rates. This activity helps students to determine when a difference in data is actually statistically significant. This should enco...https://education.ti.com/en/activity/detail/cancer-clusters
Half-Life
Students will explore exponential decay through an experiment and use the gathered data to generate an exponential regression equation. Students will then repeat the process with a data set and forecast future results.https://education.ti.com/en/activity/detail/halflife
Graphical Analysis
Students will analyze graphs of polynomials finding intervals over which the function is increasing or decreasing and positive or negative, as well as the function’s relative minimum and maximum values and x- and y-intercepts.https://education.ti.com/en/activity/detail/graphical-analysis
The Area Between
Students will find the area between two curves while determining the required amount of concrete needed for a winding pathway and stepping stones.https://education.ti.com/en/activity/detail/the-area-between_1
Why Divide by n-1?
Students will investigate calculating a sample variance using both n and n-1 as the divisor for samples drawn with and without replacement.https://education.ti.com/en/activity/detail/why-divide-by-n1
Catching the Rays
Students will fit a sinusoidal function to a set of data. The data are the number of hours of daylight starting January 1st and collected on the first and sixteenth days of the months in Thunder Bay, Ontario, Canada.https://education.ti.com/en/activity/detail/catching-the-rays
Area Under a Curve
Students will approximate the area under a polynomial curve using rectangles. Each of the polynomials in this activity represents a real-world situation to enable students to see the importance of finding the area under a curve.https://education.ti.com/en/activity/detail/area-under-a-curve
Graphing the Tangent to a Curve
Students will graph a function and the graph of the tangent line's slope as a point moves around the curve.https://education.ti.com/en/activity/detail/graphing-the-tangent-to-a-curve
The Slope of the Curve Where Two Points Meet
Students will enter a function and investigate the slope of the secant as it moves closer to becoming a tangent.https://education.ti.com/en/activity/detail/the-slope-of-the-curve-where-two-points-meet
Compositions Graphically
Students will use graphs and tables to find compositions of functions. Two of the compositions presented in this activity represent real-world situations, which should aid in students understanding the concept of compositions.https://education.ti.com/en/activity/detail/compositions-graphically
Calculations at the Crazy Cookie Company
Performing matrix multiplication for the first time, students are prompted to use reasoning skills to determine if matrix products are possible for given pairs of matrices. The tutorial leads them through matrix product operations to find rules for matrix multiplication and predicting dimensions ...https://education.ti.com/en/activity/detail/calculations-at-the-crazy-cookie-company
Exponential vs. Power
Compare rates of growth between an exponential function and a power function for positive x-values.https://education.ti.com/en/activity/detail/exponential-vs--power
Equations of Parabolas
Students draw and measure lines and segments to discover properties of parabolas, specifically that the distance from any point on the parabola is equidistant to the focus and the directrix. They work with parabolas whose vertex is on the origin as well as off the origin and they also with parabo...https://education.ti.com/en/activity/detail/equations-of-parabolas
Cybersecurity 1: All Clear
Activity 1 introduces students to “cleartext” messaging. Students will send messages between two micro:bit radios on one of 83 radio channels using plaintext characters, referred to as cleartext. The “student hacker” will attempt to eavesdrop on the conversation by listeni...https://education.ti.com/en/activity/detail/cybersecurity-1
Cybersecurity 4- What's Your Password?
Building on the concepts learned in Activity 3, students will learn about obfuscating passwords through a method known as “hashing.” This security function shows students how a plaintext password can be scrambled and encrypted by a hashing function, such as SHA-256, in such a way that...https://education.ti.com/en/activity/detail/cybersecurity-4@-whats-your-password
Cybersecurity 5 - Turn the (Rainbow) Tables
Building on the concepts learned in Activity 4, it’s up to the student hacker to turn the tables by working out the method for hacking SHA-256 password encryption.The student hacker must search a rainbow table, which is comprised of precomputed hashes from known and frequently used password...https://education.ti.com/en/activity/detail/cybersecurity-5
Trigonometry Made Easy - Trial Edition
In Trigonometry Made Easy - Trial Edition, students will use TI-Nspire™ technology to explore common trig problems utilizing step-by-step processes.https://education.ti.com/en/activity/detail/trigonometry-made-easy-@-trial-edition
Modeling Basketball and Golf shots with Quadratics
Students learn the quadratic equation in vertex form by modeling President Obama shooting hoops. Then attempt to hit a hole-in-one on 3 holes of golf by determining the equation of the flight of the ball. The activity concludes with a 10-question quiz.https://education.ti.com/en/activity/detail/modeling-basketball-and-golf-shots-with-quadratics