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38 results for "polygons"
Fractional Harmonics and Star Polygons By Gary Doskas
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This book has its roots in a previous publication of mine, Spherical Harmony: A Journey of Geometric Discovery. I will introduce the concept of spherical harmonics, but the main focus will be on... More > fractional harmonics and their associated polygram, or star polygon. There exists a unique fractional harmonic of each of the infinite number of star polygons. Much has been written about the pentagram and the golden ratio that is embedded in its geometry. However, it was the heptagon and associated heptagram that really piqued my interest. So I decided to explore the heptagram since I didn't know much about its geometric properties or characteristics and there wasn't much written about them either. The prime number seven has a special place in the ancient world and was referred to as the virgin number and was the most sacred number in many religions. some amazing ratios of proportion.< Less
PUZZLE MATH Measures of Polygon Angles By Roxanne Eckenrode
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Students find sums of the measures of interior angles of polygons, sums of the measures of exterior angles of polygons, and measures of single angles in a regular polygon. They consider triangles,... More > quadrilaterals, pentagons, hexagons, heptagons, octagons, decagons, and dodecagons. They receive immediate feedback as their answers decode a secret message. The self-checking nature motivates students and reduces overhead for teachers. Teachers, please require the students to show all of their work.< Less
Isometric Dot Workbook: Games For Teaching Polygons By Jeremiah Dyke
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The following workbook offers a fun way to learn polygon shapes by playing the age-old game "squares" (only with a twist). Using isometric dots, students will compete against each other to... More > form various polygon figures by connecting dots. So much fun, they won’t even know their learning Contact Jeremiah Dyke Hands On Math http://handsonmath.blogspot.com/ handonmath@gmail.com< Less
Isometric Dot Workbook: Games For Teaching Polygons By Jeremiah Dyke
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The following workbook offers a fun way to learn polygon shapes by playing the age-old game "squares" (only with a twist). Using isometric dots, students will compete against each other to... More > form various polygon figures by connecting dots. So much fun, they won’t even know their learning Contact Jeremiah Dyke Hands On Math http://handsonmath.blogspot.com/ handonmath@gmail.com< Less
Where Has Polly Gone? By Lisa Service
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Netta is an ostrich who has a hard time paying attention in school. On the last day of school, a diversion outside causes Netta to miss the entire Math lesson on polygons. Netta becomes so engrossed... More > with the distraction that she falls out of her chair and her glasses break into tiny polygons! Mrs. Heed, the teacher, calls on her to answer a question on polygons, but she cannot read the board, and she is extremely confused because she wasn’t paying attention! In all of the chaos, Mrs. Heed’s question, “Where is the Polygon?” becomes a big misunderstanding and Netta assumes that Polly is gone. Netta spends her summer vacation traveling all over the world in search of Polly. Each place that Netta visits has an abundance of polygons, starting with triangles and ending with decadrons. However, Netta doesn’t realize that polygons are all around her!< Less
The Shape Team: Polly, the Princess, Perturbs Her Pals By Nathan Cox
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Polly Polygon has a tea party and learns how to be a good host.
on the divisions of figures By Euclid
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Euclid's classic propositions - on triangles, polygons, quadrilaterals .... - explained with full commentary for the modern reader. Callender Classic Texts
Math Mammoth Geometry 2 By Maria Miller
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Math Mammoth Geometry 2 continues the study of geometry and is suitable for grades 6-7. The main topics include:angle relationships, classifying triangles and quadrilaterals. angle sum of triangles... More > and quadrilaterals, congruent transformations, including some in the coordinate grid, similar figures, including using ratios and proportions, review of the area of all common polygons, circumference of a circle (Pi),area of a circle,conversions between units of area (bothmetric and customary), volume and surface, area of common solids, conversions between units of volume (both metric and customary),some common compass-and-ruler constructions.< Less
Math Mammoth Geometry 3 By Maria Miller
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Math Mammoth Geometry 3 can be used after the student has finished Math Mammoth Geometry 1, and is suitable for grades 5-7. This book does not require the students to calculate area or volume, and... More > that is why it is not necessary to study Math Mammoth Geometry 2 (which deals with those topics in depth) before this book. We start out with basic angle relationships, such as adjacent angles (angles along a line), vertical angles, and corresponding angles (the last only briefly). The lesson Angles in Polygons is a sequel to studying angles in a triangle. The next set of lessons deals with congruent and similar figures. The last section of this book teaches some basic compass-and-ruler constructions. Note: At this time (2014), this book is in "beta" stage. It will be revised with more lessons (such as about The Pythagorean Theorem) probably in early 2015.< Less
Hands-On Geometry By Michelle Flaming
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Hands-On Geometry is an easy, step-by-step activity book designed for Kindergarten - Third grade teachers. The book is loaded with lesson plans, investigations, and blackline masters that are quick... More > and easy to use. This book is loaded with ideas to teach the concept of geometric shapes and their properties, transformational geometry, and visualization. Included in this activity book is also a diagnostic assessment on geometric concepts according to the NCTM standards. If you are as busy, stressed and pressed for time as most teachers, this book will quickly become another best friend.< Less