Solution 13924: TI TestGuard 2.0™Quick Start Instructions.
... To quickly setup the TI TestGuard 2.0 app to get the student calculators ready for exams, follow the steps below. The TI TestGuard 2.0 app is designed to only be transferred to an educator's calculator. • Press the [APPS] key and select the "TestGrd2" app. • Select 1: Setup Calcs. • Either c...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/13924
Solution 21911: nDeriv and Derivative Commands Use Different Algorithms to Compute Answers.
... Knowledge Base Search Do the nDeriv and derivative commands use different algorithms to compute answers? If so, which answer is more accurate? The nDeriv() and Derivative commands are based on different algorithms. While the Derivative command solves for the derivative of the functio...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/21911
Solution 24995: Answers that Include an @1 or a Component Formatted as @k on the TI-89 Family, TI-92 Family, or Voyage™ 200
...constant representation, in the same or another problem, is listed as @2 and the next iterations will show as @3,@4....@k. The equation below is a slight variation on the command above: solve(x^2+y^2=r^2 and (2x-r)^2+y^2=r^2,{x,y,z}) and the answer is x=r/3 and y=(2*square root of 2*r)/3 and z=@...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/24995
Solution 10403: Symbolic Manipulation Capabilities of the TI-85 when Computing Derivatives.
...mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-fami...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10403
Solution 10574: Calculating Nth Roots Using the TI-85 and TI-86.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search How do I perform nth root computations using the TI-85 and TI-86? The instructions below will demonstrate how to perform the nth root computations on the TI-85 and TI-86 gra...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10574
Solution 15909: Finding the Two's Complement of a Binary Number Using the TI-36X Solar Scientific Calculator.
...'s complement is an operation of negation (converting positive to negative numbers or vice versa) in computers. In an n-bit binary number, the most significant bit is usually the 2^(n-1)'s place. But in the two's complement representation, its place value is negated; it becomes the -2^(n-1)'s pl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/15909
Solution 12272: Computing One-Variable Statistics Using the TI-34.
... and sample standard deviation for the data set: {45, 55, 55, 55, 60, 80}. • Press [MODE] [5] to enter the statistics mode. • Input 45, then press [Sigma +] to save the point. • Input 55, then [Sigma +]. • Input 55, then [Sigma +]. • Input 55, then [Sigma +]. • Input 60, then [Sigma +]. • Input ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12272
Solution 34718: Calculating Permutations and Combinations Using the TI-84 Plus C Silver Edition Calculator.
... TI-84 Plus C Silver Edition.Example: How many possible permutations of 2 cards can be chosen from a deck of 5 cards?• Input 5.• Press [MATH], arrow right to highlight PRB, then press [2] to select the nPr function.• Input 2 and press [ENTER]. There are 20 possible permutations of choosing 2 card...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34718
Solution 12297: Squaring Negative Numbers on Texas Instruments Scientific and Elementary Calculators.
... negative number on my scientific or elementary calculator? These calculators use an Equation Operating System (EOS™), which evaluates from left to right, allowing the user to enter numbers and functions in a straightforward sequence. Parentheses are necessary to define the order of operations w...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12297
Solution 10696: Replacing The Battery in a TI-36X II .
... replace the old battery with the new battery. Install battery according to polarity (+ and -) diagrams.Caution: Avoid contact with other TI-36X II components while changing the battery.If necessary, press ON and CLEAR simultaneously to reset. When released, memory and settings are cleared and...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10696
Solution 20529: Incorrect Answer Received When Computing Exponents in MathPrint Mode Using the TI-30XS/B or TI-34 MultiView™ Scientific Calculator.
...e order in which functions in expressions are entered and evaluated on the calculator. EOS lets the user enter numbers and functions in a simple, straightforward sequence. Within a priority level, EOS evaluates from left to right. Calculations within parentheses are evaluated first. This means th...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/20529
Solution 15769: Calculating Combinations and Permutations on the TI-30X IIS/B and TI-34 II Explorer Plus™.
...binations and permutations on the TI-30X IIS/B and TI-34 II Explorer Plus:For example: What are the combinations of 5 choosing 2?1) Press [5] [PRB] [Right Arrow] [ENTER] [2] [ENTER].The screen will show 10.For example: What are the permutations of 5 choosing 2?1) Press [5] [PRB] [ENTER] [2] [ENTE...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/15769
Enthalpy of an Ion
Students will explore exothermic and endothermic reactions and create a classroom calorimeter to measure energy of a reaction.https://education.ti.com/en/activity/detail/enthalpy-of-an-ion
Finding the % salt in seawater
In this experiment, students are asked to collect data in order to prepare a calibration curve showing the relationship between the % of salt and the mass of salt water. Using this graph, students will be able to determine the concentration of salt in a sample of ocean water. The activity provid...https://education.ti.com/en/activity/detail/finding-the--salt-in-seawater
Vernier - Nitrate
Student uses the Nitrate Ion-Selective Probe to measure the Nitrate ions concentration in water samples. In another method, student converts nitrate ions to nitrite and use the Vernier Colorimeter to measure nitrite and calculate the nitrate levels.https://education.ti.com/en/activity/detail/vernier--nitrate
Gas Laws introduction (Boyle's and Charle's Law)
The activity contains a simulation of Boyles law and Charles law.https://education.ti.com/en/activity/detail/gas-laws-introduction-boyles-and-charles-law
What Does a Buffer Do?
Buffers are solutions that resist a change in pH. In this activity, students will add HCl dropwise to a measured amount of water, monitoring the pH. Students then repeat the process, using a simple buffer prepared by combining baking soda and tonic water. A comparison of the results will allow...https://education.ti.com/en/activity/detail/what-does-a-buffer-do
Distance from Earth Number Line
A number line showing the distance from Earth to the eight planets and the Sun.https://education.ti.com/en/activity/detail/distance-from-earth-number-line
Absorption and Radiation
Different surfaces absorb and radiate radiation at different rates. In this activity you will analyze the absorption and radiation rates of two surfaces by monitoring the temperature changes of each of them.https://education.ti.com/en/activity/detail/absorption-and-radiation
Solar Cookers and Easy Data
Students use a TI-84, Easy Temp and Easy Data to measure the quality of their solar cookers. Hot dogs are heated under the May sunshine after students design, build and test their own solar cookers.https://education.ti.com/en/activity/detail/solar-cookers-and-easy-data
Exploring Motion Graphs
Students will create distance-time and velocity-time graphs with CBL2™ and motion detectors.https://education.ti.com/en/activity/detail/exploring-motion-graphs
Which Way?
Students' use a motion detector to examine how different types of motion affect the shape of the Distance versus Time plot. They explore how changes in direction and other factors affect the shape of the plot.https://education.ti.com/en/activity/detail/which-way
The Number of Years
Students' will chart the various ages of the other students in their classroom then the students will multiply the ages by 2 using a lower level calculator, they will then add up the total ages using the same calculator - they can now divide the class into two groups (boys/girls) and see which gr...https://education.ti.com/en/activity/detail/the-number-of-years
Toys on a slope
Participants analyze data from toys rolling down a slope. Velocity is determined using lists and graphs.https://education.ti.com/en/activity/detail/toys-on-a-slope
Who Started It All? The Spread Of Disease
Students predict the spread of disease to be exponential. They then do a hands on "sharing of bodily fluids" and see the actual data and compare these results to the projected model. You actually see the number of infected after each sharing to see the shift of the model easier. Written to be c...https://education.ti.com/en/activity/detail/who-started-it-all--the-spread-of-disease