ALEX Lesson Plans Subject: Mathematics (4) Title: Lay It on the Line Description: This lesson allows students to explore their surroundings to locate and prove the presence of perpendicular lines. Students will use the corner of a ruler as a tester to determine right angles contained in classroom items. It can be included in a unit on geometry and measurement.  This is a College- and Career-Ready Standards showcase lesson plan.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 Career-Ready Standards showcase lesson plan.Subject: Mathematics (4) Title: Talking in Circles Description: The students will identify parts of the circle including center, radius, diameter, chord, and arc. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.Subject: English Language Arts (3), or Mathematics (3 - 5), or Technology Education (3 - 5) Title: Weight vs. Capacity Description: This lesson will introduce students to measuring weight, mass, volume, and capacity using metric and cutomary units. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.Subject: Mathematics (3 - 5), or Technology Education (3 - 5) Title: \$100 Picture Description: This is a lesson where collaborative learning groups are used to explore  perimeter and area of an irregular figure using pattern blocks. This lesson should be used after students have already had some experience with finding the perimeter and area of a figure.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.Subject: Mathematics (3 - 5) Title: The Class Quilt Description: Students will design a 12 inch quilt square consisting of geometrical shapes.They must use their knowledge of fractions and polygons in order to create an exact 12" by 12" square.Students will use knowledge of area of a figure in order to create a quilt using their squares.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project. Thinkfinity Lesson Plans Subject: MathematicsTitle: Concentration      Add Bookmark Description: This student interactive from Illuminations allows students to play the classic game of Concentration by themselves or against a friend. The interactive can be used to review numbers, shapes, multiplication facts, fractions, decimals, and percents.Thinkfinity Partner: IlluminationsGrade Span: K,PreK,1,2,3,4,5Subject: MathematicsTitle: Building with Triangles      Add Bookmark Description: This unit of four lessons, from Illuminations, focuses on triangles and their properties. Each investigation begins with an open-ended question that challenges students to become actively involved in mathematical experiments, ideas, discussions, manipulative materials, tools, and techniques.Thinkfinity Partner: IlluminationsGrade Span: 3,4,5,6,7,8Subject: Mathematics - Applied Mathematics - Social Studies - GeographyTitle: Geography of Pizza      Add Bookmark Description: In this lesson, from Xpeditions, students analyze Earth's surface according to the spatial elements of points, lines, and areas, and use a simple map to identify features in terms of spatial elements. This lesson uses a pizza restaurant to introduce these components to students, e.g., the location of a restaurant (point), roads and sidewalks (lines), and the city blocks or the region served by a restaurant (area).Thinkfinity Partner: National Geographic EducationGrade Span: 3,4,5Subject: MathematicsTitle: Clothing Sizes      Add Bookmark Description: This reproducible worksheet, from an Illuminations lesson, prompts students to analyze measurements of their body, specifically as they relate to clothing sizes.Thinkfinity Partner: IlluminationsGrade Span: 3,4,5Subject: MathematicsTitle: Number and Operations Web Links      Add Bookmark 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: IlluminationsGrade Span: K,1,2,3,4,5,6,7,8,9,10,11,12Subject: MathematicsTitle: Communicating about Mathematics Using Games: Playing Fraction Tracks      Add Bookmark 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 e-example from Illuminations contains an interactive version of a game that can be used in the grades 3-5 classroom to support students' learning about fractions. e-Math Investigations are selected e-examples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The e-examples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the e-examples are natural companions to the i-Math investigations.Thinkfinity Partner: IlluminationsGrade Span: 3,4,5Subject: Arts,MathematicsTitle: Constructing a Three-Dimensional Model      Add Bookmark Description: In this lesson, one of a multi-part unit from Illuminations, students build a three dimensional model of a clubhouse from two dimensional blueprints designed in an earlier lesson. In addition, they solve problems related to constructing and decorating their clubhouse.Thinkfinity Partner: IlluminationsGrade Span: 3,4,5Subject: MathematicsTitle: Rectangles and Parallelograms      Add Bookmark Description: In this lesson, from Illuminations, students use dynamic software to examine the properties of rectangles and parallelograms and then identify what distinguishes a rectangle from a more general parallelogram. Using spatial relationships, they examine the properties of two- and three-dimensional shapes. The lesson links to a virtual manipulative that allows students to compare rectangles and parallelograms.Thinkfinity Partner: IlluminationsGrade Span: 3,4,5