In this Slide Show, we show how to construct an isosceles triangle. This presentation requires the use of the TI-Nspire iPad App. Note: the download is a PPT.

In this Slide Show, we show how to construct the perpendicular bisectors of the three sides of a triangle to show they intersect at a single point. This presentation requires the use of the TI-Nspire iPad App. Note: the download is a PPT.

In this Slide Show, learn how to use the TI-Nspire App to construct an isosceles triangle. Note: The download is a PPT file.

In this Slide Show, learn about the geometry of castle construction.

In this presentation, learn the basics of equations and dispel the misconception that the equals sign is an operator.

An equation shows a relationship between two quantities. Note: The download is a PDF.

An identity is a special type of equation. It includes at least one variable and an identity is true for all values of the variable.

In this tutorial, learn what the Angle Addition Postulate is and how to use it to solve problems.

Review key vocabulary on the topic of equations with this interactive and printable crossword puzzle.

This interactive crossword puzzle tests knowledge of key terms on the topic of triangles.

Review key vocabulary on the topic of equations with this interactive and printable crossword puzzle.

Use this math game to review triangles. This is a Memory-style game in which students must remember the location of pairs of identical images.

Use this math game to review one-step equations. Students are shown four equations and are asked to correctly label the equation with drag-and-drop.

In this Math Riddles Game, have your students review vocabulary around the topic of angles.

In this Math Riddles Game, have your students review vocabulary around the topic of triangles.

Solve an interactive word search puzzle on the topic of Triangles.

Solve an interactive word search puzzle on the topic of Triangles.

Solve an interactive word search puzzle on the topic of Triangles.

Solve an interactive word search puzzle on the topic of Triangles.

Solve an interactive word search puzzle on the topic of Triangles.

Review key vocabulary on the topic of equations with this interactive and printable word search puzzle.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

This is from a collection of triangular shapes. They come labeled and unlabeled.

Use these clip art images and the background grid to test if the right triangles are similar.

Have students explore right triangles on a grid background.