Exploring the Geometric Means of a Right Triangle - When the Altitude to the Hypotenuse Is Drawn
Students will explore the concept of geometric mean and solve right triangle problems using geometric mean proportions. A TI-Nspire activity demonstrates interactively the geometric mean relationship, and an activity sheet applies the relationship to solve triangle problem. Most discussions of g...https://education.ti.com/en/activity/detail/exploring-the-geometric-means-of-a-right-triangle--when-the-altitude-to-the-hypotenuse-is-drawn
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
Mystery Quadrilateral!
This activity could be used as an assessment after a unit on special quadrilaterals. Students are given an unknown mystery quadrilateral that looks like a square. By dragging the vertices of the mystery quadrilateral, students conjecture the true name of the quadrilateral. Students support their ...https://education.ti.com/en/activity/detail/mystery-quadrilateral
The Pirate Problem
The classic geometry problem developed in 1947 by George Gamow comes alive with the interactive platform of TI-Nspire. Will the treasure still be found after the palm tree in the treasure map disappears? What begins with inductive reasoning ends with a formal proof. This lesson, easily adapte...https://education.ti.com/en/activity/detail/the-pirate-problem
Solving for Sides in a Right Triangle
This activity was designed for the Grade 11 College Math course in the Ontario curriculum. Students are expected to solve problems, including those that arise from real-world applications, by determining the measures of the sides and angles of right triangles using the primary trigonometric ratio...https://education.ti.com/en/activity/detail/solving-for-sides-in-a-right-triangle
Perpendicular Slopes
Students investigate the 'negative reciprocal' relationship between the slopes of perpendicular lines. The final phase of the activity is appropriate for more advanced students as they are led through an algebraic proof of the relationship. Optional geometric activities (problems 5 and 6 of the ....https://education.ti.com/en/activity/detail/perpendicular-slopes
Interior Angles of Polygons
In the following activity, students discover the rule for finding the number of total degrees in the angles of a polygon. Students will use both the TI-Nspire and student worksheet to find the rule and will apply it in predictions.https://education.ti.com/en/activity/detail/interior-angles-of-polygons_1
Chirp, Jump, Scatter
In this activity, students will find a best fit line for data graphed as scatter plots. Applications of linear relationships provide motivation for students and improve their skills and understanding of finding the equation of a line from two known points. Movable lines make this activity approac...https://education.ti.com/en/activity/detail/chirp-jump-scatter_1
Dice Rolling and Probability
Students will utilize the Spreadsheet and Data and Statistics applications in the TI-Nspire handheld. They will create randomly generated data and will plot it in a Dot Plot to recognize relative frequency of outcomes.https://education.ti.com/en/activity/detail/dice-rolling-and-probability
Statistical Inference: Confidence Intervals
The students will construct 1-proportion confidence intervals. This lesson begins by having the students construct a confidence interval with the formula and then leads them through the steps needed to use the Nspire's statistical applications to construct confidence intervals. Students would do ...https://education.ti.com/en/activity/detail/statistical-inference-confidence-intervals
Assessing Normality
In this activity, students will learn four characteristics of a normal curve: the distribution is symmetric and mound-shaped; the mean and median are approximately equal; the distribution meets the 68-95.5-99.7 rule; and the normal probability plot is linear. They will use these to determine if a...https://education.ti.com/en/activity/detail/assessing-normality
NASA - Maintaining Bone Mineral Density
In this activity students perform an appropriate test to determine the answer to the question "Is using the iRED exercise method significantly better than using the treadmill and bicycle in maintaining bone density?"https://education.ti.com/en/activity/detail/nasa--maintaining-bone-mineral-density
Investing in Your Future - Using Spreadsheets to Make Comparisons
This activity provides students the opportunity to make financial decisions based on different investment scenarios. Students will use the spreadsheet application of the TI-Nspire calculator to compare the results of investing in a certificate of deposit or a Money Market Account. Students will p...https://education.ti.com/en/activity/detail/investing-in-your-future--using-spreadsheets-to-make-comparisons
Area Under a Curve
Students will approximate the area under a polynomial curve using rectangles. Each of the polynomials in this activity represents a real-world situation to enable students to see the importance of finding the area under a curve.https://education.ti.com/en/activity/detail/area-under-a-curve
Law of Sines
In this activity the student will explore the Law of Sines, a theorem involving sine ratios that applies to all triangles.https://education.ti.com/en/activity/detail/law-of-sines_2
Slider Template
In this activity, students learn to create a slider to use in various applications.https://education.ti.com/en/activity/detail/slider-template
Summing up Geometric Series
This lesson involves clicking on a slider to see that the area of a square that has been systematically divided into an infinite number of pieces approaches 1.https://education.ti.com/en/activity/detail/sum-of-infinite-geometric-series
Outbreak
Students explore a geometric sequence related to an outbreak of the flu, extrapolate to make predictions based on given data, and apply summation notation to determine the sum of any number of terms, n, in a series.https://education.ti.com/en/activity/detail/outbreak
Calculations at the Crazy Cookie Company
...ices. The tutorial leads them through matrix product operations to find rules for matrix multiplication and predicting dimensions of matrix products. Application of matrix multiplication to the real-world is the goal of the Crazy Cookie Company problem in the latter part of the activity, which st...https://education.ti.com/en/activity/detail/calculations-at-the-crazy-cookie-company
The Park Problem
The goal of this activity is for students to see a real world application of a minimization problem. Students have to determine where to place a track inside a park to minimize the total distance of the track in Lazy Town.https://education.ti.com/en/activity/detail/the-park-problem
What does "i" do?
The purpose of our lesson is to allow students to foster an understanding of what happens geometrically when a number is multiplied by i. This shall be achieved by working through the lesson using an investigative approach.https://education.ti.com/en/activity/detail/what-does-i-do
Diffusion Data Collection Lab
In this lesson, students will use varying molarities of a salt solution to observe diffusion through a membrane.https://education.ti.com/en/activity/detail/diffusion-data-collection-lab
Reflections over the Axes
It is important for students to know what happens to the coordinates of points when they are reflected over the x-axis or the y-axis. This activity enables students to use Cabri Jr. to develop this understanding.https://education.ti.com/en/activity/detail/reflections-over-the-axes
Making Limits Exist
In this activity, students will graph piecewise functions and evaluate numerically and graphically the left hand limit and the right hand limit of the function as x approaches a given number, c.https://education.ti.com/en/activity/detail/making-limits-exist
Secant Lines
In this activity, students will observe the slopes of the secant and tangent line as a point on the function approaches the point of tangency.https://education.ti.com/en/activity/detail/secant-lines