# Dolores Strom

• ### Making Sense of the Pythagorean Theorem

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Dolores Strom

• ### Exploring angles formed by intersecting lines

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Dolores Strom

• ### Exploring Conic Sections

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Dolores Strom

• ### Animations of Conic Sections

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Dolores Strom

• ### Fitting a Parabola

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Dolores Strom

• ### Defining an Ellipse by Foci and Sum of Distances

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Dolores Strom

• ### Defining a Parabola in Standard Form

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Dolores Strom

• ### Exploring Conic Sections

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Dolores Strom

• ### Drawing a Circle

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Dolores Strom

• ### Exploring Areas of Regular Polygons with fixed perimeter

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Dolores Strom

• ### Exploring Restrictions on Side Lengths in Triangles

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Dolores Strom

• ### Exploring Base & Height in Triangles and Related Parallelograms

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Dolores Strom

• ### Derive the area formula for any parallelogram

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Dolores Strom

• ### Exploring angle types

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Dolores Strom

• ### Exploring angles formed by a transversal

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Dolores Strom

• ### Visual Proof of Algebraic Expansion for (a+b)^2

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Dolores Strom

• ### Dilation and Similarity Project: Part One

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Dolores Strom

• ### Determining Whether or Not Two Shapes are Dilated Images of Each Other

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Dolores Strom

• ### Similarity in Everyday Life

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Dolores Strom

• ### Defining Similarity and its Relationship to Dilation

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Dolores Strom

• ### Determining if two shapes are related by dilation

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Dolores Strom

• ### Determining whether Shapes are Similar

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Dolores Strom

• ### Dilations and Area

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Dolores Strom

• ### Similarity Exercise 5

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Dolores Strom