Trig Proofs
Students perform trigonometric proofs and verifying each proof through graphing.https://education.ti.com/en/activity/detail/trig-proofs
Two Models are Better than One
This lesson involves modeling the amount of carbon dioxide in the air over a 12-month period.https://education.ti.com/en/activity/detail/two-models-are-better-than-one
Sinusoidal Modeling
This lesson involves writing an equation to predict the average monthly temperature for a certain location based on past data.https://education.ti.com/en/activity/detail/sinusoidal-modeling
Reflective Property of Conics
This lesson involves investigating the properties of basic reflective principles of conics.https://education.ti.com/en/activity/detail/reflective-property-of-conics
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
Coin Toss
Students will run two experiments that simulate pouring out coins from a bag.https://education.ti.com/en/activity/detail/coin-toss
Properties of an Ellipse
Students discover properties of an ellipse, such as the set of all points such that the sum of the distances from these points to two fixed points is constant.https://education.ti.com/en/activity/detail/properties-of-an-ellipse_1
Exploring Linear Equations
Students will enter "life expectancy" data into lists and set up scatter plots and trace the scatter plot to select two points. Secondly, they will use the points to calculate slope and write a linear equation. Finally, they will use the Transformation Graphing App to fit the data using a linea...https://education.ti.com/en/activity/detail/exploring-linear-equations_2
Exploring Linear Relationships -- Stacking Cups and Walking Rates
In this activity, students will explore several examples of linear relationships. They will use a table to organize data that they collect and will make graphs to display that data. Students are prompted to write equations and interpret slope as a rate of change.https://education.ti.com/en/activity/detail/exploring-linear-relationships--stacking-cups-and-walking-rates
Solution 34616: Inverse Cosine of the Tangent of -5π/4 on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...1 but something like -1.0000000000001. The display routine on the calculator is designed to display -1 instead of the internal number. However, arcos function will take the internal number -1.0000000000001 as input and determines it is out-of-range. Try the following example to get the same resul...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34616