Solution 12161: String Commands on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...returns the character position where the first occurrence of the substring begins. left - Returns a specified number of characters from the left side (beginning) of a string. mid - Returns a specified number of characters from any position within a string. ord - Returns the character ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12161
Solution 12150: Multiplication of Complex Numbers in Polar Form on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ress [(-)] [3] [0] [)]. 6) Press [ENTER]. For additional instructions and examples on performing these types of calculations, refer to the online guidebook for your calculator model. Solution 12150: Multiplication of Complex Numbers in Polar Form on the TI-89 Family, TI-92 Family and Voyage™ 2...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12150
Vernier - Enzyme Action: Testing Catalase Activity
Students will use an O2 Gas Sensor to measure the amount of O2 produced when H2O2 is broken down by the enzyme catalase at different concentrations, pH values, and temperatures. They will also measure the enzyme's initial reaction rates.https://education.ti.com/en/activity/detail/vernier--enzyme-action-testing-catalase-activity
Vernier - Microscale Acid-Base Titration
In this activity, students' will use a pH sensor to determine the change in pH during a titration of a known concentration of NaOH and unknown concentration of HCl. Students' will determine the concentration of unknown HCl.https://education.ti.com/en/activity/detail/vernier--microscale-acidbase-titration
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
Electron Charge Lab
Student may experimentally determine the magnitude of the elementary charge on an electron.https://education.ti.com/en/activity/detail/electron-charge-lab
Shedding Light on the Weather with Relative Humidity
In this activity, students will collect the data for temperature and relative humidity and plot the data. They will look for the patterns displayed by the three plots and relate them to their experiences.https://education.ti.com/en/activity/detail/shedding-light-on-the-weather-with-relative-humidity
Projectile Motion Simulation
Students can investigate the effects of changing various initial quantities on the motion of a projectile. The simulation allows for firing a projectile over or up onto a cliff or over level ground. The results are displayed both graphically and mathematically.https://education.ti.com/en/activity/detail/projectile-motion-simulation
Shape Up!
In this activity, students will use the motion detector to record motion, and observe how the direction of movement, speed of travel, and the rate of change of direction and speed affect the shape of a Distance-Time plot.https://education.ti.com/en/activity/detail/shape-up
Coming to know F and C
Students will collect room temperatures with temperature probes and graphing calculators, and plot data to generalize rule that relates Fahrenheit and Celsius units.https://education.ti.com/en/activity/detail/coming-to-know-f-and-c
Millikan Oil Drop Experiment Simulation
Students run a simulation on the TI-83+ or TI-84+ graphing calculator to perform a variation of the Millikan Oil Drop Experiment. The goal is to adjust the voltage across parallel plates until a droplet is suspended between the plates. The data can ba analyzed to determine the charge on the dro...https://education.ti.com/en/activity/detail/millikan-oil-drop-experiment-simulation
Curve Ball
In this activity, students' will create a Height-Time plot for a bouncing ball and use a quadratic equation to describe the ball's motion.https://education.ti.com/en/activity/detail/curve-ball
Falling Down
In this activity, students' will determine the average speed of a falling object. They will observe whether or not changing the mass and keeping the same shape have an effect on the average speed of the object.https://education.ti.com/en/activity/detail/falling-down
What's Your Speed?
In this activity, students' will use a motion detector to determine what effect the speed at which a person moves has on the appearance of the Distance versus Time plot.https://education.ti.com/en/activity/detail/whats-your-speed
Vernier - Friction
Students study how the nature of two materials in contact, and the smoothness of their surfaces affect the magnitude of the sliding force of friction. They use a force sensor to measure frictional force for different surfaces.https://education.ti.com/en/activity/detail/vernier--friction
What's the Plan?
Students investigate area with nonstandard and standard units of measure. They work to plan a unique vegetable garden and calculate the costs of plants for the garden.https://education.ti.com/en/activity/detail/whats-the-plan
Slow Down - Speed Up
In this activity, students' will use a motion detector to observe the effect of speeding up, slowing down, and moving at a constant rate on a Distance versus Time plot.https://education.ti.com/en/activity/detail/slow-down--speed-up
Studying Wave Phenomena with "WaveSim"
This is a program allowing teacher/student to interactively and graphically investigate a variety of wave concepts commonly studied in physics: traveling waves, standing waves, beats, Doppler effect, two-point source interference, Fourier wave forms, reflection and refraction, amplitude modulatio...https://education.ti.com/en/activity/detail/studying-wave-phenomena-with-wavesim
Collecting Solar Rays
In this activity, students' will use three Temperature Sensors to collect data from three solar collectors and determine which one absorbs the most heat. They will develop an understanding of the difference between absorption and reflection.https://education.ti.com/en/activity/detail/collecting-solar-rays
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
Busy Hands
Students will make their own finger signs for the numbers from zero to ten. Students will relate each finger sign to its numeral and then explore number sentences using the calculator.https://education.ti.com/en/activity/detail/busy-hands
Exploring Hurricane Strength
In the activity, we explore multiple regression equations among Saffir-Simpson Scale, Pressure, Wind Speed, and Storm Surge of hurricanes. We relate our models to Hurricane Katrina, Gustav, and Ike.https://education.ti.com/en/activity/detail/exploring-hurricane-strength
Mean Machine
Students construct a function machine from a small box. Students use the calculator to discover functions. They create their own one-step and two-step function rules and turn their calculators into a function machine.https://education.ti.com/en/activity/detail/mean-machine
Let Me Count the Ways
Students will make predictions about the number of ways to make eleven with two or more addends. They will investigate patterns with these addends with the help of manipulatives and the calculator.https://education.ti.com/en/activity/detail/let-me-count-the-ways
Hat Trick
Students learn to solve a real-world problem in economics. Students get to understand how surveys often use a sample of people rather than all of the people involved. They also learn how to make decisions based on the results of a sample survey.https://education.ti.com/en/activity/detail/hat-trick