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Unit Plan
Varsity Tutors

Varsity Tutors: Hotmath: Review: Area

For Students 9th - 10th Standards
Find a quick, concise explanation of area and the formulas for different shapes. An example is given to help you understand how find the area of a shape. The area formulas are listed for different types of shapes.
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Activity
University of Cambridge

University of Cambridge: Nrich: Appearing Square

For Students 9th - 10th Standards
The challenge presented at this one-page website offers an opportunity to work with the area of a rectangle. The solution is available right on the website.
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Whiteboard
ClassFlow

Class Flow: Area Rectangles

For Teachers 3rd - 8th Standards
[Free Registration/Login Required] In this lesson students will understand area measured in square centimeters. They will understand and use the formula in words for the area of a rectangle.
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Unknown Type
Math Slice

Math Slice: Area & Perimeter: Math Worksheets

For Students 3rd - 5th Standards
This tool allows you to create worksheets of word problems at varying levels of difficulty where students must calculate the area or perimeter of different polygon shapes. You can choose to set up the page using any of these polygon...
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Website
Ducksters

Ducksters: Kids Math: How to Find Surface Area

For Students 1st - 9th
Learn how to find the surface area of various shapes square, rectangle, and triangle on this website.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Unknown Dimensions Using Formulas Grade 7

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Given a perimeter or area of a figure, use formulas to solve for the unknown or missing dimensions.
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Unit Plan
AAA Math

Aaa Math: Perimeter of a Square

For Students 4th - 6th Standards
Students are taught how to calculate the perimeter of a square. Extra practice drill problems are also included.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Patios

For Students 3rd - 8th Standards
Does bigger perimeter mean bigger area? Answer this question when you try this math challenge from the NCTM Math Challenges for Families series. Discover how understanding area and perimeter can be useful in real world situations.
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Lesson Plan
Better Lesson

Better Lesson: Length X Width

For Teachers 3rd Standards
Breaking figures into smaller squares and rectangles allows me to multiply to find the area
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Handout
Homeschool Math

Homeschool Math: Fraction Multiplication and Area

For Students 4th - 6th Standards
This fifth-grade lesson explores the area of a rectangle with fractional side lengths. We tile the rectangle with unit rectangles and show that the area is the same as would be found by multiplying the side lengths. We multiply...
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Activity
Annenberg Foundation

Annenberg Learner: Math in Daily Life: Home Decorating

For Students 9th - 10th
This exhibit is designed to show students that geometry really does apply to the real world. By taking viewers through a home decoration project, students learn how to calculate area of a rectangle and circle.
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Lesson Plan
Better Lesson

Better Lesson: Equivalent Numerical Expressions, Day 1 of 2

For Teachers 6th Standards
How can you represent the area of a diagram using numerical expressions? Students apply their knowledge of area and order of operations to match area diagrams with numerical expressions.
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Lesson Plan
Better Lesson

Better Lesson: Equivalent Numerical Expressions, Day 2 of 2

For Teachers 6th Standards
How can you represent the area of a diagram using numerical expressions? Students connect their knowledge of area and equivalent expressions to the commutative and distributive properties for day 2 of this investigation.
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Activity
Texas Instruments

Texas Instruments: Cross Fencing Pastures

For Teachers 6th - 8th
In this activity, students use the Geoboard to determine the areas of polygons by dissecting them into parts that are squares, rectangles, and triangles.
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Interactive
Calculator Soup

Calculator Soup: Cubic Yards Calculator

For Students 9th - 10th
Use this calculator to calculate cubic yards volume for a variety of different areas. Enter measurements in US units or metric units. Calculate volume from your measurements in inches (in), feet (ft), yards (yd), centimeters (cm), or...
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Whiteboard
ClassFlow

Class Flow: Goats and Monsters

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students explore methods to measure lengths of squares and radius of a circle in trying to keep a goat from escaping.
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Whiteboard
ClassFlow

Class Flow: Geoboards

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Geoboards bring challenge into the classroom as the student uses methods to measure length, area, and perimeters of polygons.
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
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Interactive
Shodor Education Foundation

Shodor Interactivate: Perimeter Explorer

For Students 3rd - 5th Standards
Use this applet to find the perimeter of a variety of shapes with the same or different areas.
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Handout
Math Open Reference

Math Open Reference: Quadrilaterals

For Students 9th - 10th Standards
A complete reference guide to quadrilaterals including squares, rectangles, parallelograms, trapezoids, and rhombus. It provides definitions and interactive activities that enhance further explanation.
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eBook
Mathigon

Mathigon: Geometry: Polygons and Polyhedra: Quadrilaterals

For Students 9th - 10th Standards
This lesson focuses on quadrilaterals which can fall into multiple categories based on the number of sides and the angles.
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Unit Plan
BBC

Bbc: Bitesize: Maths: 2 D Shapes

For Students 2nd - 8th Standards
Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.
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Interactive
Calculator Soup

Calculator Soup: Parallelogram Calculator

For Students 9th - 10th Standards
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.
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Unit Plan
Cuemath

Cuemath: Quadrilaterals

For Students 5th - 8th
Explore the world of quadrilaterals and their properties. Find answers to questions like what are quadrilaterals, how they are formed, easy ways to identify them, and commonly seen quadrilaterals around us.

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