Education Technology

### The Mailbox

Student will use the Measurement tools found in the Geometry menu options or model the image using functions on the Graph page
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### Reflections and Rotations

Students will reflect figures over the x- and y-axes. By studying what happens to the coordinates of the pre-image and image points, they will write rules for reflecting points over the axes. Students will then rotate figures about the origin, in both clockwise and counterclockwise directions. Again, they will study what happens to the coordinates of the pre-image and image points to write rules for reflecting points 90° and 180° about the origin.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Scaling the Geometry

This lesson involves scale drawings of actual images on the TI-Nspire handheld.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Slices

This lesson involves exploring the shapes formed from 3D figures cut by a horizontal and/or a vertical plane. • Compatible TI Technologies: TI-Nspire™ CX Handhelds, TI-Nspire™ Apps for iPad®, TI-Nspire™ Software
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Getting "A-Round" Area

This lesson involves using sectors of a circle to form a parallelogram and, from this shape, investigating the area formula for a circle.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### Angles for a Solution

This lesson involves looking at several sketches of intersecting lines and determining the measures of the missing angles using the facts about supplementary, complementary, vertical, and adjacent angles.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### We've Got You Covered: 2D Area

This lesson involves using the geometry tools to measure the area of two-dimensional shapes from the faces of three-dimensional objects they see in pictures taken outside of the classroom.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### The Pentagon Problem

This activity provides a simple, virtual "geoboard" that allows students to manipulate the polygon displayed on a unit grid. The grid squares provide a visual means of finding area.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### Transformers in the Classroom

This lesson involves digitizing an image and transforming it on a graph.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### What's Right about Triangles

This lesson involves examining a visual proof of the Pythagorean Theorem and supporting what happens geometrically.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### Volume Relationships

This lesson involves the volume formula for cylinders, cones, and spheres.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• TI-Nspire™
• TI-Nspire™ CAS

### Exploring Areas of Irregular Polygons

Explore different ways to find areas of irregular polygons using the three basic shapes of rectangles, parallelograms, and triangles.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Creating Parallel Lines and Transversals

Create a pair of parallel lines cut by a transversal and investigate the relationships among the angles that are created.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Rotations - Lesson Bundle

In this interactive video lesson series, students will explore rotations and their properties. The lessons allow students to play, investigate and explore which leads to discovering the properties of rotated figures. Explorations can be done via rotations on a grid and without a grid.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Translations Lesson Bundle

In this interactive video lesson series, students will be introduced to translations and their properties. The lessons allow students to play, investigate and explore which leads to discovering the properties of translated figures.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®

### Reflections- Lesson Bundle

In this interactive video lesson series, students will be introduced to reflections and their properties. The lessons allow students to play, investigate and explore which leads to discovering the properties of reflected figures.

• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®