Chi-Squared Tests
...to use for a given situation: X2 Goodness of Fit Test, X2 Test of Independence, or X2 Test of Homogeneity. Students will learn how to calculate the degrees of freedom for each type of chi-squared test. Students will interpret the results of a chi-square test. Chi-Squared Tests Vo...https://education.ti.com/en/ib/activities/applications-interpretation/nspire-chi-square-tests
Can You Solve a Trig Equation?
...s will practice how to solve equations involving trigonometric functions within a finite interval. Starting with basic two-step equations and then progressing to equations involving the use of trigonometric identities, students will review how to solve these equations both analytically and graphi...https://education.ti.com/en/ib/activities/analysis-approaches/nspire-can-you-solve-a-trig-equation
Can You Solve a Trig Equation?
...s will practice how to solve equations involving trigonometric functions within a finite interval. Starting with basic two-step equations and then progressing to equations involving the use of trigonometric identities, students will review how to solve these equations both analytically and graphi...https://education.ti.com/en/ib/activities/analysis-approaches/84-can-you-solve-a-trig-equation
Calculus + Graphing Calculator = More Teachable Moments
...). But, so you know, I do like to give my students some graphical sense or meaning behind the formal definition, which is formidable given its double quantifiers. Game time: Try the following graphing “challenge” for students to play as a game. If \lim_{x\rightarrow a}f(x)=L, then the graphing ...https://education.ti.com/en/bulletinboard/2019/september/calculascalcs
Mission Celebration: Use Math to Mark the 50th Anniversary of the Apollo 11 Moon Landing
...ctivities to help students mark this milestone on the moon using math. Boom! On July 20, 1969, Neil Armstrong and Buzz Aldrin were on approach to Tranquility Base when Armstrong realized they were flying into a field of car-sized boulders. Armstrong calmly guided the Eagle landing module to a saf...https://education.ti.com/en/bulletinboard/2019/july/missioncelebration
Meet TI Teacher of the Month: Lisa Goddard
... work on trying out different activities, instead of teaching the same ho-hum lessons every day. I’ve found that introducing concepts through new, unique activities really gets my students excited. What do you love most about teaching? I absolutely love seeing that aha! moment from students. It ...https://education.ti.com/en/bulletinboard/2019/march/teacherofthemonth
Minimum System Requirements for TI Software
...er (v95 or newer) RAM 4GB (recommended) | 2GB (minimum) Screen resolution 9.5" or greater and 1024 x 768 or greater TI-84 Plus CE online calculator System requirements Reliable Internet connection Operati...https://education.ti.com/en/customer-support/specifications
Solution 30951: Calculating and Graphing a Median-Median Regression on the TI-Nspire™ Family and TI-Nspire Computer Software.
...do I calculate and graph a Median-Median Regression on the TI-Nspire Family and TI-Nspire Computer Software? Med-Med (median-median) fits the model equation y=ax+b to be data using the median-median line (resistant line) technique, calculating the summary points x1,y1,x2,y2,x3 and y3. Med-Med di...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/product-usage/30951
Solution 30971: Solving an Inequality Equation on the TI-Nspire™ CAS Family Line.
... Home | TI-Nspire™ family of products Knowledge Base Knowledge Base Search How do I solve equations containing inequalities on the TI-Nspire CAS family line? Solving an equation with inequalities on the TI-Nspire CAS family line can be done using...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/product-usage/30971
Solution 35013: Using the Chi-Squared Goodness of Fit Test on the TI-Nspire™ Family Products.
...s of Fit Test using the TI-Nspire family products, please follow the example listed below. X List: 16,25,22,8,10 Y List: 16.2,21.5,16.2,14.4,12.6 Degree of freedom 5 1) Press [home] and add a Lists & Spreadsheet. 2) In column A, input the values from "X List", making sure to press [enter] a...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/product-usage/35013
Solution 11782: Performing Polar Complex Number Calculations in Degree Mode on Graphing Calculators.
...ig and inverse trig functions. This scaling does not apply to the related exponential, logarithmic, hyperbolic, or inverse-hyperbolic functions. Consequently, radian-mode identities between these functions are not generally true for degree mode when the inputs or results are non-real. For example...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/general-information/11782
Solution 34424: Coefficient (r-Values) are not Displayed When Calculating Statistical Regressions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...4 Plus family of graphing calculators, the r and r2 values are computed for LinReg(a+bx), LinReg(ax+b), ExpReg, PwrReg and LnReg. R2 is computed for QuadReg, CubicReg and QuartReg. The r, r2 and R2 values are not computed for Logistic, SinReg and Manual-Fit. All the r-value variables can be fo...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/34424
Solution 13924: TI TestGuard 2.0™Quick Start Instructions.
...onality disabled rather than deleted. The functionality can be re-enabled once the exam is over. • Set the initial angle to the desired preference. DEGREE is the factory default. • Select the initial setting for Stat Diagnostics, which offers the ability to view the r and r^2 values in statistics...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/13924
Solution 10424: Degree, Minutes, Seconds (DMS) Conversions with the TI-85 or TI-86.
...inutes, Seconds (DMS) conversions with the TI-85 and TI-86? The TI-85 and TI-86 recognize a number as DMS when that number is entered using a single quote after each value. For example, 15'12'8' would be interpreted as 15 degrees, 12 minutes and 8 seconds. The ' symbol can be accessed by press...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10424
Solution 10578: Degree, Minutes, Seconds (DMS) Conversions with the TI-82.
...s, seconds (DMS) conversions using the TI-82? The TI-82 recognizes a number in DMS when that number is entered using a single quote after each value. For example, to convert 15 degrees, 12 minutes and 8 seconds to decimal degrees, input 15'12'8' and press [ENTER]. The ' is...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10578
Solution 18689: Calculating the gcd() (Greatest Common Divisor) on the TI-73 Family Graphing Calculators.
...ument is a list and the other a non-list, the non-list is paired with each element of the list, and a list is returned. Note: This is function is frequently used with fractions to reduce them to lowest terms on the TI-73 family. The syntax is as follows: gcd(valueA,valueB) Examples: • ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/18689
Solution 10215: Polynomial Root Finder and Simultaneous Equation Solver App gives Unexpected Result for the TI-83/84 Plus, TI-89/TI-92/Voyage 200 and the TI-85/TI-86 families of the Graphing line of Calculators.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do I receive unexpected complex results when using the Polynomial Root Finder and Simultaneous Equation Solver Application? The following explains why complex results are ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10215
Solution 12639: Availability of the TI-1706+ Quick Reference Card.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Where can I obtain a copy of the Quick Reference Card for the TI-1706+ basic calculator? Solution 12639: Availability of the TI-1706+ Quick Reference Card. T...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/12639
Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...radian to degree, please follow the steps listed below: 1) Press [MODE] [↓] [↓] [→] [ENTER] to change the mode setting to degree. 2) Press [2nd] [Quit] [Clear] to quit out the mode screen and clear the home screen. 3) Press [2] [2nd] [π] [2nd] [ANGLE] [3] [Enter] this will convert the 2π t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34657
Solution 34733: Performing Degrees, Minutes, Seconds (DMS) Conversions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...es, minutes, seconds. • Make sure the handheld is in DEGREE mode by pressing [MODE], scrolling to DEGREE and pressing [ENTER]. Press [2nd] [MODE] to QUIT and return to the home screen. • Input 15.375. • Press [2nd] [APPS] to access the ANGLE menu, then press the [4] key to select the ►DMS functi...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34733
Solution 12255: Converting Degrees/Minutes/Seconds (DMS) to Decimal Format on the TI-30X IIS/B and TI-30XS/TI-30XB MultiView™ Scientific Calculators.
...2, then press the [° ' "] key. 6) Select the " symbol, then press [=]. 7) Press [=]. This will convert DMS to a decimal format. The decimal form is equal to 78.20055556. To convert this decimal back to DMS: 1) With the decimal still displayed as the last answer, press the [° ' "] key. 2) Move t...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12255
Practice with Chemical Word Equations
In this activity, students will learn about chemical word equations: what they are, how they are written and key terms (i.e., reactants and products) associated with word equations.https://education.ti.com/en/activity/detail/practice-with-chemical-word-equations
Titration Experiment
This activity is a fast and safe microscale experiment which allows students to quickly determine the molariy of three weak acids (vinegar, soda, and citric acid). Since the process involves a monoprotic, diprotic, and a triprotic acid, students recieve good exposure to the stoichiometry involve...https://education.ti.com/en/activity/detail/titration-experiment
Diffusion and Equilibrium
Students will observe how equilibrium is reached when salt is added to water.https://education.ti.com/en/activity/detail/diffusion-and-equilibrium
Diprotic Acid Lab and Easy Data
Maleic Acid gives an excellent diprotic acid titration curve showing both inflection points clearly for calculation of molecular weight.https://education.ti.com/en/activity/detail/diprotic-acid-lab-and-easy-data