Forensics Case 9 - Killer Cup of Coffee: Using colorimetry to determine concentration of a poison
In this activity, students will use colorimetry to determine the concentration of a colored species in a solution and use a linear relationship to model Beer's law. They use Beer's law to determine the concentration of iron(III)thiocyanate (FeSCN2+) in an unknown solution.https://education.ti.com/en/activity/detail/forensics-case-9--killer-cup-of-coffee-using-colorimetry-to-determine-concentration-of-a-poison
Solution 39176: Calculator donations in response to requests for relief from natural and other disasters
...f from natural and other disasters website Home | Internal - TI Confidential – NDA Restrictions Knowledge Base Knowledge Base Search Does Texas Instruments donate calculators? We recei...https://education.ti.com/en/customer-support/knowledge-base/all-other-products/general-information/39176
Forensics Case 7 - Drug Tests: Identifying an unknown chemical
In this activity, students distinguish between physical and chemical properties. They also understand the differences between qualitative and quantitative observations. They use quantitative and qualitative analyses to identify an unknown powder.https://education.ti.com/en/activity/detail/forensics-case-7--drug-tests-identifying-an-unknown-chemical
Forensics Case 5 - The Ink Is Still Wet: Using colorimetry to identify an unknown ink
In this activity, students identify the ink of a ransom note to match suspects. They identify an unknown ink by its light absorbance characteristics. The experiment set up used is to measure a solutions absorbance of different colors (wavelengths) of light.https://education.ti.com/en/activity/detail/forensics-case-5--the-ink-is-still-wet-using-colorimetry-to-identify-an-unknown-ink
TI-89 Riemann Sum Activities for Calculus
In this Computer Algebra System (CAS) activity students use Riemann sums to estimate the distance traveled on a trip at various speeds. They utilize the concept of Riemann sums to calculate the area under a curve. Students find limits of Riemann sums, and also convert Riemann sum limits to defini...https://education.ti.com/en/activity/detail/ti89-riemann-sum-activities-for-calculus
Solution 29230: Squaring Negative Numbers on Texas Instruments Graphing Calculators and Software.
... necessary to define the order of operations within an expression. For example, the calculator reads the expression -32 as (-1) x 32, and evaluates accordingly. The parentheses will assign the negative symbol to the value to be squared. Please follow these steps for squaring negative numbers us...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/29230
Solution 11989: Solving a Quadratic Equation Using Numeric Solver on the TI-83 Plus and TI-84 Plus.
...s must be entered into the solver to find both solutions. After finding the first solution, enter a new initial guess or new bounds to look for the second solution. Follow the steps below to solve the example equation: x^2=5x-6. 1) First, re-write the equation to make it equal to zero. The new e...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11989
Similar Figures - Using Ratios to Discover Properties
Students will explore similar triangles and set up ratios to discover properties of similar triangles.https://education.ti.com/en/activity/detail/similar-figures--using-ratios-to-discover-properties
Cyclic Quadrilaterals
Students will explore cyclic quadrilaterals and their properties.https://education.ti.com/en/activity/detail/cyclic-quadrilaterals_2
Are all Constructions Created Equal?
This activity is designed to give preservice teachers an introduction to the circle, compass and line tools in the Graphs & Geometry application of the TI-NSpire. The set of four investigations are designed to provide them with ideas on how to assess geometric constructions by identifying the dif...https://education.ti.com/en/activity/detail/are-all-constructions-created-equal
Investigating Properties of Quadrilaterals Using the TI-Nspire Navigator
Why spend time listing properties/theorems on the board when your students can be actively engaged in the discovery of such properties. This activity will make use of the TI-Nspire and the TI-Nspire Navigator to exchange files with the students handhelds. The Class Analysis feature of the TI-Ns...https://education.ti.com/en/activity/detail/investigating-properties-of-quadrilaterals-using-the-tinspire-navigator
Investigating Triangles and Congruence
The main purpose for this activity is to explore triangles with pairs of corresponding congruent sides and a congruent nonincluded angle.https://education.ti.com/en/activity/detail/investigating-triangles-and-congruence
One and One Equals Win
This lesson involves using proportionality and a basic understanding of probability to make and test conjectures about the results of experiments and simulations.https://education.ti.com/en/activity/detail/one-and-one-equals-win
Composite Rectangular Figures
Students will find the perimeter and area of a composite rectangular figure. They will explain how to find the measures (lengths) of unknown sides as well as the area of the entire polygon by dividing the figure into smaller rectangular figures.https://education.ti.com/en/activity/detail/composite-rectangular-figures
Goodness-Of-Fit
Students test claims of whether given distributions "fit" theoretical distributions. Students will work through two problems, one in which the theoretical proportions of each category are the same and one in which they are not. Students will use spreadsheets to calculate test statistics and the I...https://education.ti.com/en/activity/detail/goodnessoffit_1
Z-Scores
This lesson involves finding the area under the standard normal curve with mean 0 and standard deviation 1 for a given distance from the mean and compare this to the area under the curve for another member of the family of normal curves.https://education.ti.com/en/activity/detail/zscores
Boats in Motion
Students make observations about the motion of a boat going up and down the river. They will solve the system of equations algebraically and graphically.https://education.ti.com/en/activity/detail/boats-in-motion_1
Solving Systems using Elimination
Solve systems of three equations using the elimination method.https://education.ti.com/en/activity/detail/solving-systems-using-elimination
Solving Systems of Equations Check
This is just a Nspire file that affords the teacher some flexibility in terms of approach. It consists of ten problems with simple substitution.https://education.ti.com/en/activity/detail/solving-systems-of-equations-check
Solving Exponential Equations
Numeric, graphical and algebraic solutions to an exponential equation.https://education.ti.com/en/activity/detail/solving-exponential-equations
End Behavior of Polynomial Functions
Students will use a slider to scroll through the graphs of power functions with a coefficient of positive and negative 1 and determine similarities and differences among the functions. Students will generalize the end-behavior properties of various power functions.https://education.ti.com/en/activity/detail/end-behavior-of-polynomial-functions
Unit Circle Cruncher
In this coding activity, students will create two Unit Circle Guessing games. The first version will request cosine and sine values in degree mode. The second version will request cosine and sine values in radian mode.https://education.ti.com/en/activity/detail/unit-circle-cruncher
Punnett Squares
In this lesson, students will discover how traits can be passed on from parents to offspring.https://education.ti.com/en/activity/detail/punnett-squares
When The Wind Blows
An investigative project based learning activity incorporating math and science through the connections among Chemistry, Physics, and Trigonometry. Project leads to consideration of the feasibility of alternative energy options based on research and local data. Student activities culminate in the...https://education.ti.com/en/activity/detail/when-the-wind-blows
Digital mood ring python
...M project provides students and teachers a great introduction to STEM and coding with the creation of a working digital mood ring. No experience is required! With TI-Nspire™ CX II graphing calculators and the TI-Innovator™ Hub with TI LaunchPad™ Board, students will learn to program input and ou...https://education.ti.com/en/resources/stem/projects/digital-mood-ring-python