ALEX Lesson Plans
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Title: Multiplication My Way
Description:
In this lesson, students will explore the US Algorithm Method of multiplication using a unique way of describing it known as the Turtlehead Method. Students will collaboratively work together to complete story problems using the US Algorithm Method of multiplication to solve twodigit by twodigit multiplication problems.
Standard(s): [TC2] (35) 2: Use various technology applications, including word processing and multimedia software.
Subject: Mathematics (4  5), or Technology Education (3  5)
Title: Multiplication My Way
Description: In this lesson, students will explore the US Algorithm Method of multiplication using a unique way of describing it known as the Turtlehead Method. Students will collaboratively work together to complete story problems using the US Algorithm Method of multiplication to solve twodigit by twodigit multiplication problems.
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Title: Dream Vacation
Description:
This unit teaches students to plan a trip with an itinerary, remain within a budget, and work cooperatively. It is a technologybased project that combines a study of mathematics, economics, geography, and social studies.
Standard(s): [MA2015] (4) 9: Fluently add and subtract multidigit whole numbers using the standard algorithm. [4NBT4]
Subject: Information Literacy (K  12), or Mathematics (4  5), or Technology Education (3  5)
Title: Dream Vacation
Description: This unit teaches students to plan a trip with an itinerary, remain within a budget, and work cooperatively. It is a technologybased project that combines a study of mathematics, economics, geography, and social studies.
Thinkfinity Lesson Plans
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Title: Finding Products
Description:
In this lesson, one of a multipart unit from Illuminations, students examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. They also create a personal multiplication chart.
Standard(s): [MA2015] (5) 22: Relate volume to the operations of multiplication and addition, and solve realworld and mathematical problems involving volume. [5MD5]
Subject: Mathematics Title: Finding Products
Description: In this lesson, one of a multipart unit from Illuminations, students examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. They also create a personal multiplication chart. Thinkfinity Partner: Illuminations Grade Span: 3,4,5
ALEX Podcasts
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Title: Lattice Multiplication
Overview:
"Lattice Multiplication" is another strategy to help multiplication make sense. Fourth grade students demonstrate and explain the steps of lattice multiplication. Standard(s):
[MA2015] (5) 9: Find wholenumber quotients of whole numbers with up to fourdigit dividends and twodigit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. [5NBT6]
Lattice Multiplication Overview: "Lattice Multiplication" is another strategy to help multiplication make sense. Fourth grade students demonstrate and explain the steps of lattice multiplication.
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Title: Finding Prime Using Eratosthenes' Seive
Overview:
This podcast was created by a group of 5th grade girls after they investigated Prime Numbers. The podcast gives background information about Eratosthenes and prime numbers. Then the students take the audience through the process of finding prime numbers using the Seive of Eratosthenes. Standard(s):
[MA2015] (5) 9: Find wholenumber quotients of whole numbers with up to fourdigit dividends and twodigit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. [5NBT6]
Finding Prime Using Eratosthenes' Seive Overview: This podcast was created by a group of 5th grade girls after they investigated Prime Numbers. The podcast gives background information about Eratosthenes and prime numbers. Then the students take the audience through the process of finding prime numbers using the Seive of Eratosthenes.
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): [MA2015] (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): [MA2015] (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
Thinkfinity Learning Activities
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Title: Primary Krypto
Description:
This student interactive, from Illuminations, allows students to practice addition, subtraction, multiplication and addition in a fun environment. In the game of Krypto, students combine numbers with mathematical operations to obtain a target number.
Standard(s): [MA2015] (7) 6: Solve realworld and mathematical problems involving the four operations with rational numbers. (Computations with rational numbers extend the rules for manipulating fractions to complex fractions.) [7NS3]
Subject: Mathematics Title: Primary Krypto
Description: This student interactive, from Illuminations, allows students to practice addition, subtraction, multiplication and addition in a fun environment. In the game of Krypto, students combine numbers with mathematical operations to obtain a target number. Thinkfinity Partner: Illuminations Grade Span: K,PreK,1,2,3,4,5,6,7,8

