Calculators and Order of Operations | Texas Instruments
... 6/2*(2+1), all calculator models return 9. Why was the TI-82 designed this way? In the days of the TI-82 and first-generation models (TI-81 and TI-85 graphing calculators), the math world was accustomed to entering sin 2X or √2X without the fuss of parentheses. The TI-82 uses some extra spacin...https://education.ti.com/en/bulletinboard/2023/calculators-and-order-of-operations
NASA - Space Shuttle Ascent: Mass vs. Time
In this activity, students explore the ascent phase which begins at liftoff and ends when the space shuttle reaches Earth's orbit. The space shuttle must accelerate from zero to approximately 7,850 meters per second (which is approximately 17,500 miles per hour) in eight and a half minutes to re...https://education.ti.com/en/activity/detail/nasa--space-shuttle-ascent-mass-vs--time
Properties of Trapezoids and Kites
Students investigate the properties of trapezoids, isosceles trapezoids, and kites by measuring sides and angles in the figures and by constructing and measuring the diagonals of the figures. By dragging vertices of each figure, they can make and test conjectures by seeing which properties hold t...https://education.ti.com/en/activity/detail/properties-of-trapezoids-and-kites
Angle-Side-Side Exploration
Does knowing two sides and a non-included angle of a triangle guarantee it is a unique triangle? This activity will allow students to discover the answer by moving a point on a triangle to determine if another triangle given the same sides and non-included angle is possible.https://education.ti.com/en/activity/detail/anglesideside-exploration
Congruent Triangles
This activity is intended to provide students with an opportunity to discover three methods of proving triangles congruent: SSS, SAS, and ASA.https://education.ti.com/en/activity/detail/congruent-triangles_2
Approximating Pi -- Archimedes method
Students will be assigned different regular polygons to construct. They will then construct a circumscribed circle, measure diameter, circumference and perimeter. The measurements will be placed into a spreadsheet and the ratios of circumference/diameter and perimeter/diameter will be calculated.https://education.ti.com/en/activity/detail/approximating-pi--archimedes-method
The Hinge Theorems
Students will explore the inequality relationships that arise when some of the triangle congruence conditions are in place but others are not. The SAS Inequality Theorem and the SSS Inequality Theorem are often referred to as the Hinge Theorem and its converse. These two theorems concern inequali...https://education.ti.com/en/activity/detail/the-hinge-theorems_1
Olympic Gold (Regression Wisdom)
This activity takes a deeper look into the use of linear regressions. It addresses some of the limitations and common mistakes encountered with regressions.https://education.ti.com/en/activity/detail/olympic-gold-regression-wisdom
Trend or Noise?
This lesson involves investigating aspects of statistical information reported in the media or other venues, aspects that are often misunderstood by those unfamiliar with sampling.https://education.ti.com/en/activity/detail/trend-or-noise
What’s My Model?
Students will investigate several different regression models and determine which of the models makes the most sense, based upon a real-world situation (cooling a cup of hot chocolate).https://education.ti.com/en/activity/detail/whats-my-model
Re-Expressing Data
The students will learn to re-express data as a linear relationship even though the raw data does not fit a linear model. Students will learn important concepts involving data transformation and re-expression.https://education.ti.com/en/activity/detail/reexpressing-data
Radioactive Dating Game (MG)
In this lesson, students will simulate radioactive dating at an archeological site.https://education.ti.com/en/activity/detail/radioactive-dating-game-mg
Sampling Distributions
This lesson involves examining samples from a normal population and observing the distribution of the means of those samples.https://education.ti.com/en/activity/detail/sampling-distributions_1
Ain't No River Wide Enough
Students simulate the process a surveyor would use to measure the width of a river by measuring length on one side of the river and angles formed by various reference points.https://education.ti.com/en/activity/detail/aint-no-river-wide-enough
Plotting a Binomial Probability Distribution Curve
This activity introduces students to the graph of a binomial probability distribution and the affect of changing the probability of success on the shape of the graph. Students, with the aid of their TI calculators and TI-Navigator system, each find ten random numbers from a binomial distribution ...https://education.ti.com/en/activity/detail/plotting-a-binomial-probability-distribution-curve
Triangle Inequalities
This activity will help students visualize the properties of triangles stated in the theorems. By dragging the vertices, the students can see that the properties hold regardless of the size of the triangles and which sides are the longest or shortest.https://education.ti.com/en/activity/detail/triangle-inequalities_2
Explore Parallel and Perpendicular Lines
Students will use a graphing calculator to explore graphs of parallel and perpendicular lines. Students will find that parallel lines have the same slope and different y-intercepts and that the slopes of two perpendicular lines are opposite reciprocals of each other. This Technology Lab accompa...https://education.ti.com/en/activity/detail/explore-parallel-and-perpendicular-lines
Collecting Data
In this activity, students investigate how to use random numbers to collect samples and how to randomly assign subjects to experiments to collect data. They also use the CBL system to collect data in real time.https://education.ti.com/en/activity/detail/collecting-data
Assessing Approximate Normality in AP Statistics
In this activity, students are sent 5 lists of data to study. The groups must use previously-discussed strategies for determining if each set could have reasonably come from a normal distribution.https://education.ti.com/en/activity/detail/assessing-approximate-normality-in-ap-statistics
Using Vases to Help Understand What Graphs Mean
Students will predict what the graph will look like for different vases as they are filled with water. Then students will use the vases of different shapes and fill them with a set amount of water before each measurement. Students then measure the height of the water in the vase (their y-interc...https://education.ti.com/en/activity/detail/using-vases-to-help-understand-what-graphs-mean
Area of Circles Review
Review Area with PowerPoint™ then use LearningCheck™ as an assessment.https://education.ti.com/en/activity/detail/area-of-circles-review
Measurement and Linear Regression
In this activity, students will collect data by measuring line segments in both inches and centimeters. Students will plot the data, find the equation of the regression line and interpret the slope and y-intercept within the context of the exploration. Slope as a rate of change will be emphasi...https://education.ti.com/en/activity/detail/measurement-and-linear-regression
Transformations of Quadratics
Series of LearningCheck™ documents to assess student knowledge of quadratic transformations.https://education.ti.com/en/activity/detail/transformations-of-quadratics
Just Move It - IB
In this activity for the TI-84 family, the movements of the parent functions f(x)= x2 and f(x)= x3 will be explored.https://education.ti.com/en/activity/detail/just-move-it_84_ib
How Fast Is Your Racer
Students become familiar with collecting and analyzing linear data. Students first perform a manually linear fit to their collected data, and are then introduced to the linear regression analysis capabilities of the calculator. The time taken for mousetrap racers to cover predetermined distances ...https://education.ti.com/en/activity/detail/how-fast-is-your-racer