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90 reviewed resources

Videos (Over 2 Million Educational Videos Available)
The Secret World of Animal Sleep 101 Sleepless on the Savanna Video
3:42
The Secret World of Animal Sleep 101...
Women's History Activator: Eleanor Roosevelt Video
5:34
Women's History Activator: Eleanor Roosevelt
Volcano Video
4:37
Volcano
Other Resource Types (90)
24 Items in Collection
Lesson Planet

Exploring Space Through Math: Geometry

For Teachers 9th - 12th Standards
The Exploring Space Through Math series offers six geometry lessons that use NASA resources to teach learners how to use the mathematics of deductive and spatial reasoning. They use geometry to compare the dimensions of the NBL pool, the...
10 Items in Collection
Lesson Planet

Mathematics Vision Project: Interactive Applets

For Students 9th - 12th Standards
Ready, set, go! The Mathematics Vision Project provides a collection of 10 Interactive Applets that follow the progression of learning—to practice, develop, and solidify understanding. The interactives use engaging materials that include...
Lesson Planet

High School Balanced Packet 2 Assessment Tasks

For Students 9th - 12th Standards
Good assessments can be hard to find and difficult to formulate. Designed as a collection of mathematics assessment tasks, the 20 resources in this packet can also be used as lesson openers, a review, or extra practice. The open-ended...
Lesson Planet

EngageNY Geometry Module 1: Congruence, Proof, and Constructions

For Teachers 9th - 12th Standards
The 36 lessons in the Geometry Module 1 collection address transformations in teaching geometry brought on by Common Core. The focus here is on transformations and the relationships between transformations and congruence. Teacher...
1 In 1 Collection
EngageNY

Congruence, Proof, and Constructions

For Teachers 8th - 10th Standards
This amazingly extensive unit covers a wealth of geometric ground, ranging from constructions to angle properties, triangle theorems, rigid transformations, and fundamentals of formal proofs.  Each of the almost-forty lessons is broken...
Lesson Planet

Dilations in the Plane

For Teachers 9th - 12th Standards
Tenth graders investigate dilations and explore the dilation transformation before investigating the properties of a dilation using Cabri Jr. Students extend the concept of dilatation to the coordinate plane.
Lesson Planet

Tiling a Kitchen Floor

For Teachers 9th - 12th Standards
Cover the floor with math. Pupils work to determine the proper shape to cover a kitchen floor. They first determine the number of tiles to purchase and configure their placement to reduce the amount of waste. Teams finish by creating a...
Lesson Planet

Triangular Irrigation

For Teachers 9th - 12th Standards
Try to keep the pipe short. Learners investigate where to place a water pump to use the least amount of pipe. Scholars use their knowledge of reflections and congruent triangles to find the best location for the water pump. Finally, they...
6:04
Lesson Planet

Finding the Mirror Line

For Students 6th - 11th Standards
Where does the reflection come from? The vivdeo starts with a quick review of the form of the equation of horizontal and vertical lines and diagonals passing through the origin. Using a pre-image and an image of a reflected figure, the...
4:58
Lesson Planet

Transformations: Translations

For Students 9th - 12th Standards
Slide into vector transformations. Column vectors define the translation of figures by defining the number of units to move horizontally and vertically on the coordinate graph. Pupils develop an understanding of how to read the...
5:24
Lesson Planet

Rotations

For Students 7th - 11th Standards
Develop the basics of turns. A helpful video discusses the information required to perform a rotation. Afterward, the narrator shows pupils how to perform a rotation by using a piece of tracing paper to determine where the image will be...
5:11
Lesson Planet

Enlargements with Negative Scale Factor

For Students 6th - 12th Standards
How will a scale factor affect a figure—negatively? Using a grid, the narrator of an engaging video performs a dilation with a negative scale factor. The presenter compares a positive scale factor with a negative scale factor to explain...
3:31
Lesson Planet

Enlargements with Fractional Scale Factors

For Students 6th - 12th Standards
Enlargements make it bigger, right? A video shows viewers how to perform a basic dilation with a fractional scale factor. They learn how to use the scale factor to find the location of the transformed vertex by multiplying the horizontal...
4:55
Lesson Planet

Finding the Centre of Enlargement

For Students 6th - 12th Standards
Where did the transformation begin? Using a ruler, the narrator of a short presentation shows how to find the center of enlargement for transformed figures. Worksheets provide the class members an opportunity to practice the newly...
6:31
Lesson Planet

Describing Enlargements

For Students 6th - 12th Standards
What caused that to happen? Using three aspects, a video demonstrates how to describe an enlargement or dilation. The presenter counts the lengths of the sides to determine the scale factor and a ruler to find the center of dilation.
5:37
Lesson Planet

Describing Reflections

For Students 6th - 12th Standards
Don't flip out over the resource, but be sure to flip the figures. By watching a short YouTube video, scholars learn about reflections in the coordinate plane. They see how to identify the line of reflection given two figures.
Lesson Planet

Best Reflection

For Students 9th - 12th Standards
Which is the best reflection of them all? Given four diagrams, pupils determine which one shows the most accurate reflection of a quadrilateral. Two images provide the distances of each vertex from the line of reflection, as well as the...
4:14
Lesson Planet

Transformation - Translation: Lesson

For Students 7th - 11th Standards
Develop a prime example of sliding about the coordinate plane. Using figures on the coordinate plane, a segment of an extensive geometry playlist introduces the transformation of translations. The presentation uses coordinate notation to...
Lesson Planet

Transmographer

For Students 8th - 12th Standards
Introducing ... the Transmographer. Young mathematicians investigate translations, reflections, and rotations. The applet lets users perform transformations on triangles, squares, and parallelograms.
1 In 1 Collection
Lesson Planet

Leaping Lizards

For Students 9th - 12th Standards
Transform lizards onto different locations. The interactive provides a diagram of a lizard and several locations. Pupils use their knowledge of transformations to move the lizard to the different locations and use the tools of GeoGebra...
Lesson Planet

Demonstrating Rotations

For Students 9th - 12th Standards
Spin the quadrilateral about a point. Pupils trace a figure they can use to determine the image of a figure rotated about a point. They draw the resulting image and label its vertices.
Lesson Planet

Demonstrating Translations

For Students 9th - 12th Standards
Slide into translations. Given a vector, pupils translate a quadrilateral on a grid system. The scholars use a tracing to determine the image of a quadrilateral. They label the vertices to show the correspondence between the pre-image...
Lesson Planet

Comparing Transformations

For Students 9th - 12th Standards
Oh, a change is gonna come. Scholars identify how transformations change a figure. They make generalizations about how different types of transformations affect angle measures and side lengths.
Lesson Planet

Transformations and Symmetry

For Teachers 9th - 10th Standards
Flip, turn, and slide about the coordinate plane. Pupils define the rigid motions and experiment with them before determining the relationships of the slopes of parallel and perpendicular lines. The sixth unit in a nine-part series...