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Women's History Activator: Eleanor Roosevelt Video
5:34
Women's History Activator: Eleanor Roosevelt
How to paint a watercolor and ink flower bouquet | Watercolor Flower Painting Video
6:54
How to paint a watercolor and ink flower...
Algebra 50 - Three Variable Systems in the Real World - Problem 2 Video
10:23
Algebra 50 - Three Variable Systems in the...
Other Resource Types ( 60 )
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

Defining Transformations that Create Congruent Figures

For Teachers 7th - 9th Standards
Rotations, reflections, and translations are explored as geometers rotate through three different stations and develop their own definitions for these terms. Afterward, they work in small groups to classify different figures based on...
Lesson Planet

Taking a Spin

For Teachers 9th - 12th Standards
It does not divide into 360 evenly, so it cannot work. The resource extends pupils' thinking about rotational symmetry. By asking for a figure with a rotational symmetry of a seemingly impossible angle, the activity requires learners 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.
Lesson Planet

Fundamental Property of Reflections

For Teachers 9th - 10th Standards
What do midpoints and perpendicular bisectors have to do with reflections? Learners first reflect line segments over the x- and y-axes. Using the results, they see how the line of reflection is a perpendicular bisector for segments...
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

Define a Rotation

For Students 9th - 12th Standards
Begin with a performance and end with a definition. Learners rotate a point about another point, documenting the steps. The scholars use their steps to create a definition of a rotation that is general enough to use for any degree of...
Lesson Planet

Define a Reflection

For Students 9th - 12th Standards
Develop a definition based upon the performance. Using a line and a point, pupils reflect the point across the line. The learners use the steps in creating the reflection to develop a precise definition of a reflection.
Lesson Planet

Define a Translation

For Students 9th - 12th Standards
Translate from action to a definition. Given a point and a directed line segment, learners conduct a transformation. The scholars record the steps they take while performing the transformation. The individuals develop a definition from...
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...
Lesson Planet

Between the Lines

For Students K - 12th Standards
Explore linear and square dimensions by comparing areas of similar figures. A creative set of five activities designed for elementary through high school classes asks young scholars to compare areas of specific polygons. The first two...
Lesson Planet

Once Upon a Time

For Students K - 12th Standards
Examine the relationship between time and geometry. A series of five lessons provides a grade-appropriate problem from elementary through high school. Each problem asks learners to compare the movement of the hands on a clock to an angle...
Lesson Planet

The Shape of Things

For Students K - 12th Standards
Investigate the attributes of polygons. A thorough set of lessons presents problem scenarios for elementary through high school classes. The first lessons focus on basic characteristics of polygons, including the line of symmetry. As the...
Lesson Planet

Translations

For Students 9th - 12th Standards
Introduce translations as transformations that move figures in horizontal and vertical distances with a video that shows how to translate the figures. A second video covers how to determine the translation that has occurred. Pupils work...
Lesson Planet

Enlargements

For Students 8th - 11th Standards
Make enlargements with and without centers. Pupils work through seven problems dealing with dilations or enlargements. The first couple items are strict enlargements without centers, while the others have centers. Class members also...
Lesson Planet

Visualizing Rotations

For Students 8th - 10th Standards
Have classes been going in circles as they study rotations! Math scholars begin with an exploration of rotations using patty paper. As they progress through the lesson, they examine compositions of reflections and their resulting image....
Lesson Planet

Reflections

For Students 8th - 10th Standards
Reflections are the geometric mirror. Pupils explore this concept as they discover the properties of reflections. They focus on the coordinates of the reflections and look for patterns. This is the third lesson in a seven-part series.
1 In 1 Collection
EngageNY

End-of-Module Assessment Task - Geometry (module 1)

For Students 9th - 10th Standards
Have you hit a wall when trying to create performance task questions? Several open-ended response questions require a deep level of thinking. Topics include triangle congruence, quadrilaterals, special segments, constructions, and...
1 In 1 Collection
EngageNY

Review of the Assumptions (part 2)

For Students 9th - 10th Standards
Is the amount of information getting overwhelming for your geometry classes? Use this strategy as a way to organize information. The resource provides a handout of information studied in relation to triangle congruence. It includes a...
1 In 1 Collection
EngageNY

Translations

For Students 9th - 10th Standards
Learn through constructions! Learners examine a translation using constructions and define the translation using a vector. Pupils then construct parallel lines to determine the location of a translated image and use the vector as a guide.
1 In 1 Collection
EngageNY

Review of the Assumptions (part 1)

For Students 9th - 10th Standards
What was the property again? Tired of hearing this from your pupils? Use this table to organize properties studied and as a reference tool for individuals. Learners apply each property in the third column of the table to ensure their...
1 In 1 Collection
EngageNY

Mid-Module Assessment Task - Geometry (Module 1)

For Teachers 9th - 10th Standards
How do you prepare class members for the analytical thinking they will need in the real world? An assessment requires the higher order thinking they need to be successful. The module focuses on the concept of rigid transformations...
1 In 1 Collection
EngageNY

Correspondence and Transformations

For Teachers 9th - 10th Standards
Looking for a strategy to organize the information related to transformations? The materials ask pupils to identify a sequence of rigid transformations, identify corresponding angles and sides, and write a congruence statement. They...