University of Georgia
University of Georgia: Texas Area Estimate
Drawings and discussion of several methods to estimate the area of an irregular shape, like the state of Texas.
Homeschool Math
Homeschool Math: Area Versus Perimeter
This lesson contrasts area and perimeter and has varied exercises for learners about both concepts.
National Council of Teachers of Mathematics
The Math Forum: Seventh Grade Math: Area and Perimeter
Learn how to enlarge drawings, figure out how much tile to buy to cover a specific floor, and learn about area and perimeter. These and other lesson plans are provided, including a fun interdisciplinary plan featuring dragons.
Khan Academy
Khan Academy: Represent Rectangle Measurements
Label the given measurements in a diagram. Find the side length of a square when given the area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Oswego City School District
Regents Exam Prep Center: Area of Polygons and Circles
A lesson focusing on the area of polygons and the circumference of circles. Engaging, interactive practice worksheet, lesson plan, and related classroom activity complete this lesson.
Better Lesson
Better Lesson: Measuring Metric Style
Using decimals and finding perimeter and area all while learning about the metric system.
PBS
Pbs Learning Media: Skate Off: Final Round, Inez vs. Rimm
In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.
E-learning for Kids
E Learning for Kids: Math: Castle in the Clouds: Surfaces: Area and Time
Students will play a variety of learning games to explore and practice area and timelines.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.6 Area or Perimeter of Triangles/ Quadrilaterals
Explore finding and measuring perimeter of figures.
Khan Academy
Khan Academy: Find Area With Partial Unit Squares
Count unit squares and partial unit squares to find the area of shapes.
Shodor Education Foundation
Shodor Interactivate: Lesson: Intro Fractals: Infinity/self Similarity/recursion
Explore fractions, ratios, area, and perimeter through guided practice lessons.
CK-12 Foundation
Ck 12: Appropriate Tools for Measurement of Squares and Rectangles
[Free Registration/Login may be required to access all resource tools.] Choose appropriate tools and units for given measurement situations involving squares and rectangles.
E-learning for Kids
E Learning for Kids: Math: Dojo: Area, Measurement, and Angle
Students will play learning games to explore area, measurement, and angles.
University of North Carolina
A Dictionary of Units of Measurement
This site contains an extensive list of various units of measurement known internationally and across several disciplines. Unit symbols are also included.
PBS
Pbs Learning Media: Skate Off: Round One
In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Similarity
This site contains a lesson plan for high school age students. The objective is to discover the factor of proportionality in similar polygons and to relate this factor to the perimeters and areas of similar polygons.
ClassFlow
Class Flow: Area Rectangles
[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.
Khan Academy
Khan Academy: Measure to Find Perimeter
In this exercise, students practice measure to find perimeter. Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.
Scholastic
Scholastic Lesson Plan: New Way to Measure Area
This article describes a new approach to teaching children more than just memorizing a formula to find area and hope they don't confuse it with perimeter. This approach involves a project with real life situations....
Khan Academy
Khan Academy: Find Perimeter When Given Side Lengths
In this exercise, students practice finding perimeter when given side lengths. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly. CCSS.Math.Content.3.MD.D.8 Solve real world and...
CK-12 Foundation
Ck 12: Unknown Dimensions of Parallelograms Grades 6 7
[Free Registration/Login may be required to access all resource tools.] Find the unknown dimensions of a parallelogram given its area and another measurement.
Texas Instruments
Texas Instruments: Maximizing the Area of a Rectangle
This activity is adapted from one of the TI books. Students measure lengths and widths of rectangles and record for the class to see. Each group's rectangle has the same perimeter, but different areas. After a discussion, students make...
Texas Instruments
Texas Instruments: What Goes Around Comes Around but Can You Measure It?
In this activity, students find the area and the perimeter for several geometric shapes. They also determine the surface area and volume of spheres.
University of Texas
Inside Mathematics: Fair Play [Pdf]
This task challenges a student to demonstrate understanding of the concept of measurement.