Curated OER
No Edge, No Center -- Exploring the Shape of Our Universe
Students examine various "spaces" (including ones that are one-dimensional, two-dimensional, and three-dimensional). For each space, they will examine what it means to have or not have an edge, or to be finite or infinite.
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Properties of Special Parallelograms
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
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SAS Similarity Theorem
Students identify and use the similarity theorem. In this geometry lesson, students differentiate between congruent and similar triangles. They solve problems using the computer modifying shapes by dragging.
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Median of a Trapezoid
Learners find the median of trapezoids and other polygons. In this geometry lesson, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
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Corresponding Sides and Angles of Similar Triangles
Young scholars differentiate between corresponding sides ad angles of two triangles. In this geometry lesson, students identify the differences as well as the similarities between two triangles. They differentiate between similar and...
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Distance in Coordinate Geometry
Learners analyze distance and graphing. In this geometry lesson, students work problems on a coordinate grid calculating the distance. They apply the Pythagorean Theorem to their data and answer.
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Creating Fractals
Students solve problems using fractals. In this geometry lesson, students identify properties of fractals. They find patterns in their surroundings and relate it to the real world and math.
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Reflection
Students examine how some transformations, such as reflections and rotations, do not change the figure itself, only its position or orientation.
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Exploring Geometric Mean
Students solve problems using geometric means. In this geometry instructional activity, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
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Exploring Geometric Mean
Student identify the solution using geometric mean. In this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
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Inscribed Angles
Students calculate the inscribed angle of a triangle. In this geometry instructional activity, students identify the angle created by intersection of a triangle and a circle. They see the relationship between the arc and the angle.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of a parallelogram. In this geometry lesson, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
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Math with Maps and Globes
Students round out their math skills with these ‘round the world' ideas. In this math and geography lesson, students try out time zone sticks, a polar race, and tic-tac-globe to engage them in learning more about globes and the...
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Globe Skills Lesson 7 The Transcontinental Railroad
Students explore the Transcontinental Railroad. In this geography skills lesson, students use map skills in order to locate legs of the Transcontinental Railroad on globes.
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Science 911: Car Crash Testing
Young scholars explore, experiment and analyze the concept of using dummies in a car crash test. They collaborate in a series of tests designed to simulate what really happens in a two-car collision. Each student incorporates...
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Isosceles Triangles
Students identify the properties of an isosceles triangle. In this geometry lesson, students find the midpoint, median and angle bisector of a triangle. They construct angle bisectors and measure missing angles.
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Lengths, Areas and Shapes - Week 9
In this lengths, areas and shapes worksheet, students explore overlapping and non-overlapping patterns. They identify the number of objects in a pattern, determine how the pattern may be folded to create additional patterns, and...
Starfall
Oo is for Octopus
Learners learn to print the upper and lower case DeNelian letter Oo in this language arts activity. Students trace several examples before forming their own letters in the unlined boxes. Also included is a Connect-the-Dot and counting...
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Conics and Graphing
For this algebra worksheet, students solve equations by graphing an ellipse, circle and hyperbola. They match equations to graphs and define each type of function. There are 20 questions total.
Starfall
Aa is for Apple
In this literacy activity, students practice writing the letter a and color in the pictures related to it. Then students write a sentence.
Starfall
Aa is for Apple
For this printing worksheet, learners form 11 upper and lowercase letter A's. Students color in pictures of words beginning with the letter and write two rows of A's on their own.
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Listening for Tone
Students read and listen to various poems as they are read by different readers using different tones. They read "Jabberwocky" and in groups, determine what they think the nonsense words in the poem mean. The groups compare thier ideas...
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Polygons
In this polygons worksheet, 10th graders identify and define both a polygon and a convex polygon and then, they apply two theorems that involve the interior and exterior angles of a convex polygon. First, they find the sum of the...
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