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Thomas Jefferson - Author of The...

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Language and Creativity

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The Circulatory System Part 1: The Heart

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Lesson Planet

#### High School Balanced Packet 1 Assessment Tasks

Are you looking for assessment tasks for Algebra 1, Algebra 2, or geometry? Check out this collection of 20 assessment tasks designed for high schoolers. Problems are presented with an open-ended format allowing students to use multiple...

Lesson Planet

#### EngageNY Geometry Module 1: Congruence, Proof, and Constructions

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...

EngageNY

#### Congruence, Proof, and Constructions

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

#### Analyzing Congruence Proofs

Looking at numerous examples of triangles, each with different properties, geometers develop their understanding of congruency. They use the notation of a counter-example to disprove certain conjectures and prove geometric theorems and...

Lesson Planet

#### Google Earth Trip

A trip around the world sounds nice, but for now we'll just have to make do with Google Earth. Pupils use pictures of landmarks to apply geometry concepts. They determine whether each building has bilateral or rotational symmetry, search...

Lesson Planet

#### Finding the Mirror Line

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...

Lesson Planet

#### Transformations: Translations

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...

Lesson Planet

#### Rotations

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...

Lesson Planet

#### Smarter Balanced Sample Items: High School Math – Claim 2

Problem solve across the content standards. The presentation slides provide 19 sample items from the Smarter Balanced high school assessment. Items illustrate Claim 2, problem solving, of the test and are drawn from all the high school...

Lesson Planet

#### Best Reflection

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...

Lesson Planet

#### Pool Bounce

Use geometry to improve your pool game! Learners analyze the front half of a pool shot to determine its resulting path. By measuring the angle of incidence, they are able to predict the path of the ball.

Lesson Planet

#### Transformation - Rotation: Lesson

Change places by pivoting the figure. The section of a geometry playlist introduces rotations by making the connection to rotational symmetry. The presentation provides formulas to use with the coordinates when rotating a figure around...

Lesson Planet

#### Transformation - Reflection: Lesson

Looking into a mirror is not the same on a coordinate plane. A portion of an extensive playlist on basic geometry provides the rules to find the coordinates of points after a reflection over one of the axis. Using the rules, the video...

Lesson Planet

#### Transformation - Translation: Lesson

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

Introducing ... the Transmographer. Young mathematicians investigate translations, reflections, and rotations. The applet lets users perform transformations on triangles, squares, and parallelograms.

Lesson Planet

#### How to Land Your Spaceship

How many moves does it take to land an out-of-this-world aircraft? Given a spaceship and a landing pad, pupils work together to determine the sequence of transformations needed to land it. Individuals show they can perform...

Lesson Planet

#### How Did It Get There? A Series of Transformative Events

Flip, turn, and slide to get there. With the aid of hands-on materials, pairs transform a figure from one place on the coordinate plane to another. They determine a sequence that will move one figure to another and present different...

Lesson Planet

#### Flipping Fours

Quadrilaterals beget quadrilaterals. Scholars apply transformations to figures on a coordinate plane drawn on a floor and on graph paper. As hinted in the title, the resource focuses solely on transformations of quadrilaterals.

Lesson Planet

#### Dancing for Joy

Two transformations for the price of one. Using patty paper, young mathematicians extend their understanding of transformations. They consider sequences of two or more transformations.

Lesson Planet

#### Rotation of a Quadrilateral

Take a quadrilateral out for a spin. The assessment checks class members' understanding of rotations. Provided with a quadrilateral on a grid, pupils draw the image resulting from rotating the figure about a point.

Lesson Planet

#### Regular Hexagon in the Circle

To locate the vertices, look no further than the radius. The assessment provides the pupils with a circle. Learners construct an inscribed regular hexagon in the circle using a straightedge and compass.

Lesson Planet

#### Reflect a Semicircle

Kids will flip over semicircles! Given a line of reflection, pupils reflect a semicircle on a grid. They then draw and label the image of the figure on the grid.

Lesson Planet

#### Transformations in the Coordinate Plane

Transform algebra to represent geometric movements. The lesson plan provides guidance to introduce your scholars to the application of the precise definitions of rigid transformations. Pupils work through several transformations to...

Lesson Planet

#### Indicate the Transformations

An assessment presents two triangles on a grid along with assumptions of the locations of the vertices. Pupils describe a sequence of transformations that will transform one triangle onto the other.