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Why Are Castles So Tall? 
Description
In this module students explore indirect measurement by seeing how simple angle measure, height measurements, and tangent ratios can be used to calculate distances. The context of castles provides a historically relevant military purpose for the tallness of castles. 

Math Examples Collection: Angle Measures 
Overview This collection aggregates all the math examples around the topic of Angle Measures. There are a total of 48 Math Examples.  
Math Examples Collection: Equations with Angle Measures 
This collection aggregates all the math examples around the topic of Solving Equations with Angle Measures. There are a total of 25 Math Examples.  
Math Examples Collection: Radian Measure 
OverviewThis collection aggregates all the math examples around the topic of Radian Measure. There are a total of 10 Math Examples.  
Math Clip Art Collection: Angles 
Overview This collection aggregates all the math clip art around the topic of Angles. There are a total of 22 images.  
Math Clip Art Collection: Geometry Tools 
Overview<This collection aggregates all the math clip art around the topic of Geometry Tools. There are a total of 10 images.  
Math Video Collection: Geometry Applications Video Series: Angles and Planes 
OverviThis collection aggregates all the math videos and resources in this series: Geometry Applications Video Series: Angles and Planes. There are a total of 13 resources.  
Math Video Collection: Texas Instruments Tutorial Videos 
Overview This collectioThis collection aggregates all the math videos and resources in this series: Texas Instruments Tutorial Videos. There are a total of 266 resources.  
Math Video Collection: Desmos Geometry Tutorial Videos 
Overview This collection aggregates all the math videos and resources in this series: Desmos Geometry Tutorial Videos. There are a total of 50 resources.  
Math Clip Art Collection: Geometry Basics: Angles 
<This collection aggregates all the math clip art around the topic of Angles. There are a total of 11 images.  
Math Clip Art Collection: Geometry Basics: Categorizing Angles 
This collection aggregates all the math clip art around the topic of Categorizing Angles. There are a total of 10 images.  
Math Clip Art Collection: Geometry Basics: Other Types of Angles 
This collection aggregates all the math clip art around the topic of Other Types of Angles. There are a total of 10 images.  
Math Examples Collection: Equations with Angles from Parallel Lines Cut by a Transversal 
This collection aggregates all the math examples around the topic of Equations with Angles from Parallel Lines Cut by a Transversal. There are a total of 10 images.  
Desmos CollectionGeometry Activities 
Overview This colThis collection of videos focus on the use of the Desmos Geometry Tool. Each video focuses on a specific geometry topic.  
Desmos Worksheets and Transcripts 
Overview This is a collection of companion resources, including worksheets and transcripts. The worksheets accompany some of the Desmos graphing calculator activities. The transcripts are for the videos.  
Test Prep Interactive Quizzes 
Test Prep Interactive Quizzes are an excellent way for students to review key concepts. Each Test Prep quiz has ten multiple choice questions.  
Math Definitions Collection: Angles 
This collection aggregates all the definition image cards around the topic of Angles. There are a total of 22 terms.  
Math Definitions Collection: Geometry 
This collection aggregates all the definition image cards around the topic of Geometry vocabulary. There are a total of 58 terms.  
Math Definitions Collection: Geometry Theorems and Postulates 
OThis collection aggregates all the definition image cards around the topic of Theorems and Postulates terms and vocabulary. There are a total of 18 terms.  
Math Clip Art Collection: Animated Clip ArtAngles 
This collection aggregates all the math clip art around the topic of Animated Clip Art. There are a total of 83 images.  
Google Earth Voyager Collection 
Overview This collection aggregates all the Google Earth Voyager Stories. There are a total of 17 stories.  
Animated Math Clip ArtAngle ConceptsAcute Angles 1 
Animated Math Clip ArtAngle ConceptsAcute Angles 1
This is part of a series of animated math clip art images that show show the properties of angles. This collection also investigates the types of angles that can be found in triangles and quadrilaterals. 

Animated Math Clip ArtAngle ConceptsAcute Angles 2 
Animated Math Clip ArtAngle ConceptsAcute Angles 2
This is part of a series of animated math clip art images that show show the properties of angles. This collection also investigates the types of angles that can be found in triangles and quadrilaterals. 

Animated Math Clip ArtAngle ConceptsAcute Angles 3 
Animated Math Clip ArtAngle ConceptsAcute Angles 3
This is part of a series of animated math clip art images that show show the properties of angles. This collection also investigates the types of angles that can be found in triangles and quadrilaterals. 

Animated Math Clip ArtAngle ConceptsAngles from Lines 1 
Animated Math Clip ArtAngle ConceptsAngles from Lines 1
This is part of a series of animated math clip art images that show show the properties of angles. This collection also investigates the types of angles that can be found in triangles and quadrilaterals. 