ALEX Lesson Plans
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Title: It's Around There Somewhere! Perimeter, and Circumference
Description:
The purpose of this lesson is to review the concepts of perimeter, and circumference.Students will also use their knowledge to apply perimeter, and circumference formulas within practical applications such as in spatial design.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
Standard(s):
Subject: Mathematics (7  12)
Title: It's Around There Somewhere! Perimeter, and Circumference
Description: The purpose of this lesson is to review the concepts of perimeter, and circumference.Students will also use their knowledge to apply perimeter, and circumference formulas within practical applications such as in spatial design.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
Thinkfinity Lesson Plans
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Title: Approximations of Pi
Description:
This student reproducible, from an Illuminations lesson, provides information about and several examples of approximations for the constant pi.
Standard(s): [MA2013] AM1 (912) 12: Calculate the limit of a sequence, of a function, and of an infinite series. (Alabama)
Subject: Mathematics Title: Approximations of Pi
Description: This student reproducible, from an Illuminations lesson, provides information about and several examples of approximations for the constant pi. Thinkfinity Partner: Illuminations Grade Span: 6,7,8
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Title: Finding Surface Area and Volume
Description:
In this lesson, one of a multipart unit from Illuminations, students use an isometric drawing tool to build threedimensional figures. They then find the surface area and volume of each figure.
Standard(s): [MA2013] GEO (912) 35: Give an informal argument for the formulas for the circumference of a circle; area of a circle; and volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments. [GGMD1]
Subject: Mathematics Title: Finding Surface Area and Volume
Description: In this lesson, one of a multipart unit from Illuminations, students use an isometric drawing tool to build threedimensional figures. They then find the surface area and volume of each figure. Thinkfinity Partner: Illuminations Grade Span: 6,7,8
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Title: Orbiting Satellites
Description:
In this lesson, from Illuminations, students explore the concept of orbits, specifically the connection of Earthorbiting satellites to the study of the environment. Both geometric and algebraic concepts are presented to students in this application of science and mathematics to a realworld situation.
Standard(s): [MA2013] PRE (912) 7: (+) Solve problems involving velocity and other quantities that can be represented by vectors. [NVM3]
Subject: Mathematics,Science Title: Orbiting Satellites
Description: In this lesson, from Illuminations, students explore the concept of orbits, specifically the connection of Earthorbiting satellites to the study of the environment. Both geometric and algebraic concepts are presented to students in this application of science and mathematics to a realworld situation. Thinkfinity Partner: Illuminations Grade Span: 6,7,8
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Title: Pi Line
Description:
In this Illuminations lesson, students measure the diameter and circumference of various circular objects. They plot the measurements on a graph and relate the slope of the line to the ratio of circumference to diameter. There are also links to online activities.
Standard(s): [MA2013] GEO (912) 35: Give an informal argument for the formulas for the circumference of a circle; area of a circle; and volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments. [GGMD1]
Subject: Mathematics Title: Pi Line
Description: In this Illuminations lesson, students measure the diameter and circumference of various circular objects. They plot the measurements on a graph and relate the slope of the line to the ratio of circumference to diameter. There are also links to online activities. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
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Title: Slope, Pi, and Lines
Description:
These reproducible transparencies, from an Illuminations lesson, feature preactivity and summary questions on slopes, pi and lines.
Standard(s): [MA2013] GEO (912) 35: Give an informal argument for the formulas for the circumference of a circle; area of a circle; and volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments. [GGMD1]
Subject: Mathematics Title: Slope, Pi, and Lines
Description: These reproducible transparencies, from an Illuminations lesson, feature preactivity and summary questions on slopes, pi and lines. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
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Title: Slope, Pi, and Lines Activity Sheet
Description:
This reproducible activity sheet, from an Illuminations lesson, guides students as they measure circle circumferences and diameters and graph the relationship between these two measurements.
Standard(s): [MA2013] GEO (912) 35: Give an informal argument for the formulas for the circumference of a circle; area of a circle; and volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments. [GGMD1]
Subject: Mathematics Title: Slope, Pi, and Lines Activity Sheet
Description: This reproducible activity sheet, from an Illuminations lesson, guides students as they measure circle circumferences and diameters and graph the relationship between these two measurements. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Web Resources
Interactives/Games
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Title: Geometry StepbyStep
Description:
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Standard(s): [MA2013] GEO (912) 37: Determine the relationship between surface areas of similar figures and volumes of similar figures. (Alabama)
Geometry StepbyStep
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Learning Activities
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Title: Geometry StepbyStep
Description:
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Standard(s): [MA2013] GEO (912) 37: Determine the relationship between surface areas of similar figures and volumes of similar figures. (Alabama)
Geometry StepbyStep
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Teacher Tools
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Title: Geometry StepbyStep
Description:
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Standard(s): [MA2013] GEO (912) 37: Determine the relationship between surface areas of similar figures and volumes of similar figures. (Alabama)
Geometry StepbyStep
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.

