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Lesson Plans (7) A detailed description of the instruction for teaching one or more concepts or skills. Learning Activities (1) Any activity that would enhance a lesson or unit in order to help the learner master an objective 
and/or acquire a skill.  Examples include, but are not limited to, online tutorials, experiments, 
demonstrations, and hands-on activities.


ALEX Lesson Plans


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Subject: Mathematics (8 - 12)
Title: Systems of Equations: What Method Do You Prefer?
Description: The purpose of this lesson is to help students apply math concepts of solving systems of equations to real life situations. The students will use the three methods of graphing, substitution, and elimination to solve the system of equations.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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Subject: Health,Mathematics
Title: Make a Conjecture      
Description: In this lesson, one of a multi-part unit from Illuminations, students explore rates of change and accumulation in context. They are asked to think about the mathematics involved in determining the amount of blood being pumped by a heart.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics,Science
Title: Whelk-Come to Mathematics     
Description: In this four-lesson unit, from Illuminations, students make a conjecture, conduct an experiment, analyze data and work to a conclusion using rational functions to investigate the behavior of Northwestern Crows. Sea gulls and crows feed on various types of mollusks by lifting them into the air and dropping them onto a rock to break open their shells. Biologists have observed that northwestern crows consistently drop a type of mollusk called a whelk from a mean height of about 5 meters. Students investigate the relationship between the height of the drop and the number of drops.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics,Science
Title: Northwestern Crows     
Description: In this lesson, one of a multi-part unit from Illuminations, students use rational functions to investigate the feeding behavior of Northwestern Crows. Biologists have observed that northwestern crows consistently drop a type of mollusk called a whelk from a mean height of about 5 meters. Students investigate the relationship between the height of the drop and the number of drops by viewing a video clip; then, they plan a classroom experiment to model the dropping of whelks in order to collect and analyze data.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Road Trip!     
Description: In this Illuminations lesson, students investigate the famous Traveling Salesman Problem by considering the shortest route between five northeastern cities. Three different algorithms for finding the shortest route are explored, and students are encouraged to look for others.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Least Squares Regression     
Description: In this nine-lesson unit, from Illuminations, students interpret the slope and y-intercept of least squares regression lines in the context of real-life data. Students use an interactive applet to plot the data and calculate the correlation coefficient and equation of the least squares regression line. These lessons develop skills in connecting, communicating, reasoning, and problem solving as well as representing fundamental ideas about data.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Pick's Theorem as a System of Equations     
Description: In this lesson, one of a multi-part unit from Illuminations, students gather three examples from a geoboard or other representation to generate a system of equations. The solution provides the coefficients for Pick s Theorem.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



Thinkfinity Learning Activities


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Subject: Mathematics
Title: Isosceles Triangle Investigation      
Description: This student interactive, from an Illuminations lesson, allows students to investigate the relationship between the area of the triangle and the length of its base.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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