Solution 11936: Changing the Language to English on the TI-83 Plus, TI-84 Plus, and TI-84 Plus C Silver Edition.
...-84 Plus mode? To change the language to English on a TI-83 Plus family, TI-84 Plus family, or TI-Nspire handheld in TI-84 Plus mode: 1) Press the [APPS] key. 2) Under the applications listed, select the language currently on the calculator (for example, if the calculator is in Spanish, select...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11936
Solution 11952: Deleting a CellSheet™ File on the TI-83 Plus and TI-84 Plus.
...e I created on the TI-83 Plus family, TI-84 Plus family, or TI-Nspire handheld in TI-84 Plus mode? CellSheet files are stored on the calculator as application variables. Follow the procedure below to delete an application variable: • Press [2nd][MEM] • Scroll to 2:Mem Mgmt/Delete and press. [...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11952
Solution 11913: Accessing Constants on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...Neither the TI-83 Plus family, TI-84 Plus family, or the TI-Nspire Handheld in TI-84 Plus Mode include built-in constants. However, the Science Tools app contains the most common constants. Once the Science Tools app has been loaded on the handheld, the constants can be accessed following the ste...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11913
Solution 12027: Detailed Information Provided When Using the Catalog Stopped After OS Update on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...nformation provided in the CATALOG menu of the TI-83 Plus family, TI-84 Plus family, and TI-Nspire in TI-84 Plus mode is provided by the Catalog Help App. When an OS (Operating System) update is performed, the RAM is cleared, and all running applications are stopped. To restart the Catalog Help: ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/12027
Solution 12002: Troubleshooting a TI-83 Plus and TI-84 Plus Family of Graphing Calculators Stuck on Defragmenting.
..." • Follow the on-screen directions to reinstall the calculator's OS. If the message "Error! Press any key to turn unit off. Then turn unit back on." appears on the graphing calculator, quickly remove one battery from the calculator and reinstall it while the transfer is taking place. For the Mac...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/12002
World Population
Students use their handhelds to explore world population data from the years 1950-2006. They will develop various equations to model the data.https://education.ti.com/en/activity/detail/world-population_1
Tesselations
In this activity students will explore what causes some regular polygons to tesselate. They will explore sketches of regular polygons, measure the interior angles, and test to see whether the shapes tesselate.https://education.ti.com/en/activity/detail/tesselations
Segment Addition Postulate
The purpose of this handout is to provide students an opportunity to learn the keystrokes involved using the TI-Nspire and to verify the Segment Addition Postulate.https://education.ti.com/en/activity/detail/segment-addition-postulate
Segments and Chords in a Circle
This activity is designed to allow students an opportunity to gain an understanding of the relationship among the segment measures formed by intersecting chords in a circle. It includes an interactive geometry page, some circle problems, and a Euclidean proof.https://education.ti.com/en/activity/detail/segments-and-chords-in-a-circle
The Radian Sector
In this activity, students will explore properties of sectors. Students will derive the formula for the arc length of a sector and the area of a sector.https://education.ti.com/en/activity/detail/the-radian-sector
Shortest Distance
Students will discover, through exploration, that the shortest distance from a point on a line to the origin is a measure of a perpendicular line segment. You will investigate this minimization problem and support the analytical explanations with interactive explorations.https://education.ti.com/en/activity/detail/shortest-distance
The sum of the interior angles of regular polygons
The students will construct triangles within regular-sided polygons to determine the sum of the interior angles. They will then, using statistics, create a linear regression to determine the relationship between the number of sides of a regular polygon and the sum of its interior angles.https://education.ti.com/en/activity/detail/the-sum-of-the-interior-angles-of-regular-polygons
Shortest Distances
Students will explore three situations involving distances between points and lines. First, the minimum distance between two points leads to the Triangle Inequality Theorem. Then, the shortest distance from a point to a line is investigated. Finally, students find the smallest total distan...https://education.ti.com/en/activity/detail/shortest-distances
Transformtions and Tessellations
In this activity you will construct a variety of transformations. In Problem #1 you will create a reflection of a pentagon, in Problem #2 a translation of a regular hexagon, in Problem #3 a rotation of a quadrilateral in two ways, in Problem #4 a dilation of a triangle. In each case you will ob...https://education.ti.com/en/activity/detail/transformtions-and-tessellations
Side Length, Perimeter, and Area of a Rectangle
Explore the effects of changing base (or height) of a rectangle on it's perimeter and area.https://education.ti.com/en/activity/detail/side-length-perimeter-and-area-of-a-rectangle
Side-Side-Angle: The Ambiguous Case
Experiment with segment lengths and angle measures.https://education.ti.com/en/activity/detail/sidesideangle-the-ambiguous-case
Similar Figures
Observe what happens to ratios of pairs of side of rectangles and triangles.https://education.ti.com/en/activity/detail/similar-figures
Triangle Inequality Theorem
Given the measures of any three segments, will you always be able to make a triangle?https://education.ti.com/en/activity/detail/triangle-inequality-theorem
Triangle Midsegment Exploration
The activity has the students investigate the relationship of the midsegment to the third side of the triangle. In addition the students investigate the area of the smaller triangles compared to the larger one and uses the results to solve the "campground" problem. There is a set of follow-up q...https://education.ti.com/en/activity/detail/triangle-midsegment-exploration
Paths of Rectangles
This exploration for preservice teachers, looks at how the lengths of the sides of rectangles with equal areas are related. The rectangles are constructed so that one vertex is at the origin. The path of the opposite vertex is an example of indirect variation and demonstrates a connection between...https://education.ti.com/en/activity/detail/paths-of-rectangles
Perpendicular Bisector
In this activity, students will explore the perpendicular bisector theorem and discover that if a point is on the perpendicular bisector of a segment, then the point is equidistant from the endpoints. This is an introductory activity, where students will need to know how to change between pages, ...https://education.ti.com/en/activity/detail/perpendicular-bisector_1