Similarity and Dilations
Students will discover properties of similar figures using the TI-89 and CABRI Geometry II to use dilations to dynamically manipulate figures. (Topic - Similar Figures and the Role of Dilations)https://education.ti.com/en/activity/detail/similarity-and-dilations
Parallelograms - Discovering Their Properties
Students use the TI-89 with CABRI™ Geometry to discover properties of parallelograms. They will construct a figure and use the definition to disvoer the figure is a parallelogram. (Topic - parallelograms)https://education.ti.com/en/activity/detail/parallelograms--discovering-their-properties
What's the Angle?
Students discover properties of interior and exterior angles of convex polygons using the TI-89 and Geometer's Sketchpad. (Topic - Interior and Exterior Angles of Convex Polygons)https://education.ti.com/en/activity/detail/whats-the-angle
What's the Spin?
Students discover properties of rotations using the TI-89 and CABRI Geometry II by rotating a triangle around a point and through a specified angle. They will discover the definition of a rotation. (Topic -- Rotations and their relation to reflect)https://education.ti.com/en/activity/detail/whats-the-spin
Set Design
Students will use similarity concepts, and the dimensions of the carvings on Mt. Rushmore to create a proportional representation of the carvings for a stage backdrop.https://education.ti.com/en/activity/detail/set-design
Stepping Stones
Students use volume formulas and proportional reasoning to calculate the amount of concrete needed to make stepping stones of a specific size.https://education.ti.com/en/activity/detail/stepping-stones
Quilt Blocks
Students will see how fractions, decimals, and percents are interrelated, then explore and learn how to convert between them. Students will also practice estimating.https://education.ti.com/en/activity/detail/quilt-blocks
So Many Zeros!
Students will explore standard and scientific notation representations of numbers. Students will also discuss the need for different representations of very large or small numbers, and they will see real-world examples of these representations.https://education.ti.com/en/activity/detail/so-many-zeros
Slam Dunk!
Students will use radius, diameter, length, width, and height to find volume of spheres and prisms as well as area of circles and rectangles. They will discuss when to use a two-dimensional measurement vs. a three-dimensional measurement using spatial reasoning.https://education.ti.com/en/activity/detail/slam-dunk
Banquet Meal
Students use proportional reasoning skills to increase a family-size recipe to a banquet-size recipe.https://education.ti.com/en/activity/detail/banquet-meal
What Makes a Food Nutritious?
Students will analyze select nutritional values of specific food products and then compare those values to the recommended daily allowances published by the U.S.D.A. They will calculate percentages and fractions based upon the information they find.https://education.ti.com/en/activity/detail/what-makes-a-food-nutritious
Conics in Geometry
This lesson has students construct 3 conic sections through geometric definitions. Using the CABRI™ Geometry II application for the TI-89, students construct a parabola, an ellipse, and a hyperbola. (Topics - geometric shapes.https://education.ti.com/en/activity/detail/conics-in-geometry
Dilation
Students use the Cabri Geometry II Plus software to investigate the geometric property of dilation. They vary the scale factor and examine the effect on the dilation of a triangle.https://education.ti.com/en/activity/detail/dilation
Cottage Water Problem
Students use the Cabri Geometry II Plus software to solve a geometry problem. They move the vertex point that is common to two right triangles along the base to find the smallest possible sum of the length of the hypotenuse.https://education.ti.com/en/activity/detail/cottage-water-problem
Pizza Extravaganza
Students will conduct a survey of the class to determine favorite pizza toppings. They use this sample information to predict the preferred toppings for the school and use the TI-15 to help them with the calculations to plan a school-wide pizza party.https://education.ti.com/en/activity/detail/pizza-extravaganza
What's Half of a Half of a Half?
Students will use a physical model to determine what happens when they repeatedly halve a piece of paper, and then they reassemble the pieces into a whole. They then use an algebraic model to analyze the same situation, which leads to an introductory discussion of limits.https://education.ti.com/en/activity/detail/whats-half-of-a-half-of-a-half_1
Making Cookies
Students will reduce a cafeteria recipe to suit a household recipe. They use compatible numbers to choose smaller measurements while retaining the original proportions.https://education.ti.com/en/activity/detail/making-cookies
Meal Manager
Students will use percentages and proportional reasoning skills to solve problems.https://education.ti.com/en/activity/detail/meal-manager
Homestead-Miami Chase Activity
In this activity, students will investigate whether it is better to take the shortest path or the fastest path.https://education.ti.com/en/activity/detail/homesteadmiami-chase-activity
Number of Regions - An Introduction to the TI-Nspire CAS
This activity uses the problem of determining the maximum number of regions formed by n lines in a plane to introduce new users to the TI-Nspire CAS. It illustrates the variety of features available on the TI-Nspire CAS, as well as the ability to look at one problem from multiple representations ...https://education.ti.com/en/activity/detail/number-of-regions--an-introduction-to-the-tinspire-cas
Volumes of Rectangular Prisms
This lesson will introduce students to many of the algebraic graphing features of the TI-89 calculator, especially the Maximum command. This will be accomplished by solving volumes of right rectangular prisms. (Algebra / geometry activity)https://education.ti.com/en/activity/detail/volumes-of-rectangular-prisms
Fast nines and Fast tens
Students learn how to solve a mathematical equation with a missing addend. Students will learn the combinations of addends to find the sums of nine and ten. Students practice math facts with accuracy and immediacy for sums of nine and ten.https://education.ti.com/en/activity/detail/fast-nines-and-fast-tens
What's So Special About 11?
Students will compute multiples of numbers in search of patterns. As a class, they'll discover patterns in multiples of 9; then they'll do the same with patterns in multiples of 11. They will then practice writing the rule for 11, both verbally and algebraically, to summarize the discovered patte...https://education.ti.com/en/activity/detail/whats-so-special-about-11
Can Pythagoras Swim?
Students will investigate relationships between sides of right triangles to understand the Pythagorean theorem and then use it to solve problems. Students will simplify expressions using radicals and exponents in this activity.https://education.ti.com/en/activity/detail/can-pythagoras-swim
What's the Fastest Way to Get Rich?
Students investigate exponential growth and discover patterns by exploring different scenarios involving money. They will learn how repeatedly doubling, or multiplying by two, can also be expressed exponentially.https://education.ti.com/en/activity/detail/whats-the-fastest-way-to-get-rich