ALEX Lesson Plans
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Title: Pizza Problems: An Angle Investigation
Description:
This investigative lesson allows students to identify angle measurements as part of a larger angle. Students will deconstruct 180 degree angles into equal parts.
This is a College and CareerReady Standards showcase lesson plan.
Standard(s): [MA2013] (4) 25: Recognize angle measure as additive. When an angle is decomposed into nonoverlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in realworld or mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure. [4MD7]
Subject: Mathematics (4)
Title: Pizza Problems: An Angle Investigation
Description: This investigative lesson allows students to identify angle measurements as part of a larger angle. Students will deconstruct 180 degree angles into equal parts.
This is a College and CareerReady Standards showcase lesson plan.
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Title: Don't Retract When It's Time To Protract
Description:
Students are introduced to a new kind of measuring using a basic protractor, then learn to measure angles. Students reinforce the concept by using a ruler and protractor to draw angles of a specified measure.
Standard(s): [MA2013] (4) 24: Measure angles in wholenumber degrees using a protractor. Sketch angles of specified measure. [4MD6]
Subject: Mathematics (4)
Title: Don't Retract When It's Time To Protract
Description: Students are introduced to a new kind of measuring using a basic protractor, then learn to measure angles. Students reinforce the concept by using a ruler and protractor to draw angles of a specified measure.
ALEX Podcasts
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Title: Angles
Overview:
This is a studentnarrated PowerPoint about angles. The student defines different types of angles such as right, acute, obtuse, straight, vertical, interior, and exterior. She also describes angle measurement and application of angle measurement. Standard(s):
[MA2013] (7) 12: Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle. [7G2]
Angles Overview: This is a studentnarrated PowerPoint about angles. The student defines different types of angles such as right, acute, obtuse, straight, vertical, interior, and exterior. She also describes angle measurement and application of angle measurement.
Web Resources
Assessments
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Title: Go Bananas over Angles!
Description:
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Standard(s): [MA2013] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in twodimensional figures. [4G1]
Go Bananas over Angles!
http://www.oswego.or...
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Informational Materials
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Title: Measuring Distances and Angles
Description:
This site begins with a detailed tutorial explaining how we use distances and angles in the real world. There are 10 exercises to complete at the end.
Standard(s): [MA2013] (4) 24: Measure angles in wholenumber degrees using a protractor. Sketch angles of specified measure. [4MD6]
Measuring Distances and Angles
http://www.elearnin...
This site begins with a detailed tutorial explaining how we use distances and angles in the real world. There are 10 exercises to complete at the end.
Interactives/Games
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Title: Go Bananas over Angles!
Description:
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Standard(s): [MA2013] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in twodimensional figures. [4G1]
Go Bananas over Angles!
http://www.oswego.or...
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
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Title: Measuring Distances and Angles
Description:
This site begins with a detailed tutorial explaining how we use distances and angles in the real world. There are 10 exercises to complete at the end.
Standard(s): [MA2013] (4) 24: Measure angles in wholenumber degrees using a protractor. Sketch angles of specified measure. [4MD6]
Measuring Distances and Angles
http://www.elearnin...
This site begins with a detailed tutorial explaining how we use distances and angles in the real world. There are 10 exercises to complete at the end.
Learning Activities
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Title: ABC Teach  Measurement
Description:
These "Everyday Measurements" worksheets give students an opportunity to measure everyday objects and/or complete perimeter.
Standard(s): [MA2013] (5) 21: Measure volumes by counting unit cubes, using cubic cm, cubic in, cubic ft, and improvised units. [5MD4]
ABC Teach  Measurement
http://www.abcteach....
These "Everyday Measurements" worksheets give students an opportunity to measure everyday objects and/or complete perimeter.
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Title: Go Bananas over Angles!
Description:
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Standard(s): [MA2013] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in twodimensional figures. [4G1]
Go Bananas over Angles!
http://www.oswego.or...
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Teacher Tools
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Title: Go Bananas over Angles!
Description:
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Standard(s): [MA2013] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in twodimensional figures. [4G1]
Go Bananas over Angles!
http://www.oswego.or...
Banana Hunt is an online interactive activity that can be used in a wholeclass setting, cooperative groups, small groups, or with individuals. This fun website will have your students going "bananas" over recognizing angles. The interactive game ask, "How many bananas can you find in 10 searches?". The game has a large circle with an angle with a monkey on the end of one of the rays. Students will drag the monkey(ray) to the location of the banana by creating the correct angle. Students will press "search". If the students find the right location(angle) on the circle of the banana they will receive 10 bananas.
Thinkfinity Informational Materials
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Title: Number and Operations Web Links
Description:
This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites.
Standard(s): [MA2013] (5) 26: Classify twodimensional figures in a hierarchy based on properties. [5G4]
Subject: Mathematics Title: Number and Operations Web Links
Description: This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites. Thinkfinity Partner: Illuminations Grade Span: K,1,2,3,4,5,6,7,8,9,10,11,12
Thinkfinity Interactive Games
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Title: Communicating about Mathematics Using Games: Playing Fraction Tracks
Description:
Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This eexample from Illuminations contains an interactive version of a game that can be used in the grades 35 classroom to support students' learning about fractions. eMath Investigations are selected eexamples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The eexamples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the eexamples are natural companions to the iMath investigations.
Standard(s): [MA2013] (5) 26: Classify twodimensional figures in a hierarchy based on properties. [5G4]
Subject: Mathematics Title: Communicating about Mathematics Using Games: Playing Fraction Tracks
Description: Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This eexample from Illuminations contains an interactive version of a game that can be used in the grades 35 classroom to support students' learning about fractions. eMath Investigations are selected eexamples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The eexamples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the eexamples are natural companions to the iMath investigations. Thinkfinity Partner: Illuminations Grade Span: 3,4,5

