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 Lesson Plans (2) Multimedia (2) Informational Materials (1) Interactives/Games (1)

## ALEX Lesson Plans

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Subject: Mathematics (4 - 5), or Technology Education (3 - 5)
Title: Please Excuse My Dear Aunt Sally
Description: As a hands-on lesson, the students will recognize the correct usage of the order of operations. In groups, the students will work cooperatively to discover the importance of following step-by-step instructions and apply that knowledge in solving algebraic equations by correctly using the order of operations. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

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Subject: Mathematics (3 - 5), or Technology Education (3 - 5)
Title: Let's Go Shopping!
Description: This technology-based lesson provides students practice in collecting and organizing data through the use of grocery store circulars.

## ALEX Multimedia

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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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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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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