PBS
Pbs Learning Media: Comparing Regular and Irregular Areas
The CyberSquad proves that the area of Hacker's land is equal to the area of Judge Trudy's land in this video segment from Cyberchase.
University of Texas
Inside Mathematics: Don's Shapes [Pdf]
This task challenges a student to demonstrate understanding of the attributes of two-dimensional shapes.
University of Texas
Inside Mathematics: Quilt Making [Pdf]
This task challenges a student to demonstrate understanding of the concept of two dimensional shapes and their properties.
Cuemath
Cuemath: Area of a Shape
A comprehensive guide for learning all about area with definitions, how it is measured, the area of various shapes, solved examples, and practice questions.
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Measurement: Temperature and Area
Caleb works in a Hamburger restaurant and he can really use your help measuring temperature and comparing the areas of things in the restaurant.
Amby Duncan-Carr
Amby's Math Resources: Finding the Area of a Rectangle
The tutorial investigates area and how it is the total number of square tiles covered. Examples and practice problems are included.
AAA Math
Aaa Math: Perimeter of a Square
Students can practice finding the perimeter of squares through the self-check exercises and timed learning games provided on this site.
Beacon Learning Center
Beacon Learning Center: Fence Me In!
Students can practice calculating the perimeter of rectangles in this interactive web lesson.
Mr. Martini's Classroom
Mr. Martini's Classroom: Classifying Polygons and Finding Perimeters
Assess learning of polygons and perimeters with this interactive multiple choice practice and quiz activity. Click the question mark for hints.
National Council of Teachers of Mathematics
Nctm: Illuminations: Scale Factor
The interactive applet allows learners to explore the relationships between side length, area, and perimeter. Students see how changes in the scale factor influence the ratio of areas and perimeters. [Requires Java.]
CK-12 Foundation
Ck 12: Elem Math: Unknown Dimensions of Squares and Rectangles (Grade 3)
[Free Registration/Login may be required to access all resource tools.] This learning module features five videos and a set of practice questions in which students learn to compute linear measures, given edge or surface measures of...
Khan Academy
Khan Academy: Find a Missing Side Length When Given Area
Practice finding a missing side length on a rectangle when given the other side length and the area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Area and Perimeter of Squares and Rectangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on the area and perimeter of rectanlges and squares.
CK-12 Foundation
Ck 12: Elem Math: Given the Perimeter Find the Side Length and Area Squares
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on how to find the area of a square when given the perimeter. CCSS.Math.Content.3.MD.D.8 Solve real world and mathematical problems...
CK-12 Foundation
Ck 12: Elem Math: Perimeter of Squares and Rectangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on finding the perimeter of rectangles and squares.
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.
Oswego City School District
Regents Exam Prep Center: Area of Polygons and Circles
How would you find the area of a polygon or circle? Explore this concept with engaging activities at this test prep site. Here you will find detailed problem solving strategies with accompanying visuals, a reference table with formulas,...
Education Development Center
Tune in to Learning: Polygons and Perimeter
Explore different polygons and find their perimeter with this interactive lesson from T.V.411. Students see examples of polygons in everyday life and have immediate feedback to your responses to lesson questions.
National Council of Teachers of Mathematics
Nctm: Illuminations: Interactive Geometry Dictionary: Lines in Geometry
The applets in this Interactive Geometry Dictionary (IGD) will show you how to find the area of some common shapes.
TOPS Learning Systems
Top Science: Go Figure! [Pdf]
This is a classic area puzzle where polygon shapes are rearranged, giving what seems to be a different total area. Students must try to determine why there is a discrepancy.
Khan Academy
Khan Academy: Area & Perimeter of Rectangles Word Problems
Find the missing side length of a rectangle when given its perimeter or area. Compare perimeters and areas of rectangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Khan Academy
Khan Academy: Area of Rectangles
Find area of rectangles and squares by multiplying side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 3.md Finding the Area of Polygons
The purpose of this instructional task is for students to find the area of figures that can be decomposed and then recomposed into rectangles. Aligns with 3.MD.C.6. CCSS.Math.Content.3.MD.C.7.d Recognize area as additive.
Illustrative Mathematics
Illustrative Mathematics: 3.md Three Hidden Rectangles
The purpose of this task is for students to decompose a figure into rectangles and then find the total area by adding the area of all of its smaller, non-overlapping rectangles. Aligns with 3.MD.C.7.d.