FL

These are the resources that support this Florida Standard.

MAFS.7.G.2.5

There are 94 resources.
Title Description Thumbnail Image Curriculum Topics

Isosceles Triangles

In this lesson students explore and use the properties of isosceles triangles to solve real world problems. After learning the basics of isosceles triangles they apply what they learn to the structure of the Eiffel Tower.

A video introduces the topic of isosceles triangles, along with two isosceles triangle theorems. Students are shown how to find the values for the isosceles pair, given the third angle, by solving a multi-step equation.

Students then apply what they have learned about isosceles triangles by learning about the triangular trusses in the Eiffel Tower. Students learn about what a truss is, what their function is in a building, and why isosceles triangle trusses are an effective form of a truss. Students then learn about two important properties of isosceles triangles involve the perpendicular bisector of the base and the angle bisector of the third angle. Another video ties together triangular trusses, perpendicular bisectors, and angle bisectors.

Students then complete a cloze assessment, in which they identify key words that are missing from a reading passage. 

This module can be used as an introductory lesson on isosceles triangles in a middle school geometry unit. The content aligns with grade 7 Core State Standards, but this module can be used as a refresher for higher grades.

This module can be assigned to individual students or groups of students. Students should be able to complete this lesson in 20 minutes.

Isosceles Triangles

Why Are Castles So Tall?

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.

This module explores Himeji Castle in Japan, as well as other castles. Some of the concepts explored in this module include:

  • Angle measurements and alternate interior angles of parallel lines
  • Tangent ratios
  • Linear functions, in particular the functional relationship between a castle's height and its line of sight for a given angle

This module provides a nice blend of algebra and geometry topics and can be used in an algebra unit on linear functions, a geometry unit on tangent ratios, or even a pre-calculus lesson on tangent ratios and functions.

Castles

Definition--Angle Concepts--Acute Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AcuteAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Adjacent Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AdjacentAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Alternate Exterior Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AlternateExteriorAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Alternate Interior Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AlternateInteriorAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--Angle.png Angles, Definition of an Angle

Definition--Angle Concepts--Angle Bisector

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AngleBisector.png Angles, Definition of an Angle

Definition--Angle Concepts--Angle Measure

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AngleMeasure.png Angles, Definition of an Angle

Definition--Angle Concepts--Angle Vertex

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--AngleVertex.png Angles, Definition of an Angle

Definition--Angle Concepts--Central Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--CentralAngle.png Angles, Definition of an Angle

Definition--Angle Concepts--Circumscribed Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--CircumscribedAngle.png Angles, Definition of an Angle

Definition--Angle Concepts--Complementary Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--ComplementaryAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Congruent Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--CongruentAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Corresponding Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--CorrespondingAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Exterior Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--ExteriorAngle.png Angles, Definition of an Angle

Definition--Angle Concepts--Inscribed Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--InscribedAngle.png Angles, Definition of an Angle

Definition--Angle Concepts--Obtuse Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--ObtuseAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Opposite Interior Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--OppositeInteriorAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Reflex Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--ReflexAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Right Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--RightAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Straight Angle

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--StraightAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Supplementary Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--SupplementaryAngles.png Angles, Definition of an Angle

Definition--Angle Concepts--Vertical Angles

This is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined.

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Defintion--AngleConcepts--VerticalAngles.png Angles, Definition of an Angle

Math Clip Art--Angle Illustrations--Adjacent Angles--Labeled

This piece of clip art consists of: Adjacent Angles--Labeled.

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Math-Clip-Art--Adjacent-Angles--Labeled.jpg Angles, Applications of Angles and Planes