How Close is Close?
Students compute statistical measures like the mean, standard deviation, and variance of the data set. They understand how measures of variability can be interpreted.https://education.ti.com/en/activity/detail/how-close-is-close
Number Crunching! Number Munching!
Students comprehend the order of operations and apply this understanding to simplify and evaluate expressions. They also learn to represent problems that involve variable quantities with expressions and use the calculator as a tool to solve problems.https://education.ti.com/en/activity/detail/number-crunching-number-munching
The Geometer's Sketchpad® App for the TI-89 Titanium
Explore geometry interactively with the Geometer's Sketchpad App! This App complements The Geometer's Sketchpad computer software.Explore geometry interactively with the Geometer's Sketchpad App! This App complements The Geometer's Sketchpad computer software. Students can construct, analyze and transform mathematical models and geometric diagrams, and create new tools for any construction to add: Polygons Arrow...https://education.ti.com/en/software/details/en/E82DB5727965429CB9F5F9758AA906CB/89thegeometerssketchpad
2025 Planning for Success TI Sweepstakes Rules | Texas Instruments
...ENTER OR WIN. A PURCHASE OR PAYMENT WILL NOT INCREASE YOUR CHANCES OF WINNING. ODDS OF WINNING WILL DEPEND ON THE TOTAL NUMBER OF ELIGIBLE ENTRIES. VOID WHERE PROHIBITED. SWEEPSTAKES DESCRIPTION: The 2025 TI Planning for Success Sweepstakes is can be entered after completing entries at education...https://education.ti.com/en/promotion/planningforsuccesstisweeps2025/rules
Absolutely!
Students first solve linear absolute value equations in a single variable using the definition of absolute value to write and solve two equations. They then explore the handheld's functionalities for solving and checking such equations. Students view graphs of absolute value inequalities, compare...https://education.ti.com/en/activity/detail/absolutely
Polynomial Rollercoaster
This lesson involves finding a cubic regression equation to model a section of roller coaster track.https://education.ti.com/en/activity/detail/polynomial-rollercoaster
Evaluating Logarithms
In problem 1, students explore the logarithm (base 10) function and compare the functions y = 10x and y = log 10x first through a table of values, then through a graph. In problem 2, students explore logarithms with other bases via tables, graphs, the calculator application and the change of base...https://education.ti.com/en/activity/detail/evaluating-logarithms
Graphing Relationships
In this activity, students explore information about a graph based on the first and second derivatives. They learn that a function's derivative is positive when the function increases and negative when the function decreases. They learn that the second derivative is positive when the graph is con...https://education.ti.com/en/activity/detail/graphing-relationships
Bewildered Babies
Students test the limits of the combinations formula by applying it to a labeling situation. After making charts and using logic to list possible label arrangements, students compare their results with the output of the combinations formula and nCr command.https://education.ti.com/en/activity/detail/bewildered-babies_1
What Is My Rule?
This activity encourages students to gain experience with the language of the Cartesian coordinate system. Each of the problems shows two points, z and w. Point z can be dragged, and point w moves in response. In describing the rule that governs the location of point w, students will most likely ...https://education.ti.com/en/activity/detail/what-is-my-rule
Application of Slopes
Students will apply the concept of slope to a real-world problem about building a staircase. They will use the slope ratio, vertical change over horizontal change, to find the slope of staircase. Then, students will recognize how a positive or negative slope applies in a real-world situation.https://education.ti.com/en/activity/detail/application-of-slopes
Common Denominator
In this activity, students will use an interactive model that multiplies the fraction by "1" to help determine the common denominator. Then they will use what they have learned to add and subtract fractions without the same denominators.https://education.ti.com/en/activity/detail/common-denominator_1
Pi Song - Little Help
Solving literal equations with Pi. In this activity, students will explore formulae that have Pi in it. Animations and multiple choice, self-check questions, make this activity accessible to Algebra students. The equations make this activity of interest to geometry and physics classes for a short...https://education.ti.com/en/activity/detail/pi-song--little-help
Families of Rectangles
Students create a family of similar rectangles and then write the equation of the curve that will connect the upper-right vertex of each rectangle. Students will then create a family of rectangles that have the same area and will write the equation of the curve that connects the upper-right verti...https://education.ti.com/en/activity/detail/families-of-rectangles
Area of the Missing Square
In this activity, students will be introduced to an area model for representing a quadratic equation. Students will explore the relationship between the value of b and c, in y = x2 + bx + c, form of the quadratic equation. The relationship will be examined with integer and non-integer values in o...https://education.ti.com/en/activity/detail/area-of-the-missing-square_1
Conditional Statements
In this activity, students construct examples of conditional statements such as parallel and perpendicular lines. After completing the conditional statement, they will write the converse, inverse, and contrapositive and determine if each is true.https://education.ti.com/en/activity/detail/conditional-statements
NASA - An Astronaut in Motion
...urement, variation, and movement. To study human movement, ABF researchers use motion capture technology. By using the motion capture technology, a segment of the body (e.g. the lower arm) can be tracked in 3-D as it moves. Conducting ground-based research with this technology is helping NASA de...https://education.ti.com/en/activity/detail/nasa--an-astronaut-in-motion
Nonlinear Systems of Equations
Students will be introduced to nonlinear systems of equations. It begins by allowing students to move figures around the screen to see ways certain types of graphs (linear/conic and conic/conic) can intersect each other and how many possible intersection points are possible. The activity conclude...https://education.ti.com/en/activity/detail/nonlinear-systems-of-equations
Accelerated Returns
Students compare periodic and continuous compounding and apply continuous compounding to a variety of problem situations.https://education.ti.com/en/activity/detail/accelerated-returns
It's a Parallelogram, You Say?
Students represent complex numbers in the complex plane as points or vectors and display the sum and difference of two complex numbers as diagonals of the parallelograms they define.https://education.ti.com/en/activity/detail/its-a-parallelogram-you-say
Solution 34616: Inverse Cosine of the Tangent of -5π/4 on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...se (-225) is an integer. The same kind of problem exists if the input is a general floating point. Please see the TI-83 Plus and TI-84 Plus Family guidebooks for additional information. Last updated: 7/18/2023 Solution 34616: Inverse Cosine of the Tangent of -5p/4 on the TI-83 Plus and TI-84 Pl...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34616
Solution 34844: Using the Chi-Squared Goodness of Fit Test on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... Knowledge Base Knowledge Base Search How can I use the Chi-Squared Goodness of Fit test on the TI-84 Plus Family? The command for the Chi-Squared Goodness of Fit test is located under the STAT-TESTS menu. Please see the below example: L1: {16,25,22,8,10} L2: {16....https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34844