McGraw Hill
Glencoe Mathematics: Quiz on Introduction to Analytic Geometry
The online assessment exhibits knowledge of analytic geometry. The questions evaluate students on distance, midpoint, and the area of a rectangle.
CK-12 Foundation
Ck 12: Area and Perimeter: Rectangular Treehouse
[Free Registration/Login Required] Students are given the base and height of a rectangle and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
CK-12 Foundation
Ck 12: Perimeter of Squares and Rectangles: Tennis Court
[Free Registration/Login Required] Students move the points for the lengths of sides to determine the perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
Discovery Education
Discovery Education: Web Math: Find Out Things About a Rectangle
WebMath offers a good, basic site for students to practice working with the area and perimeter of a rectangle.
CK-12 Foundation
Ck 12: Geometry: Perimeter and Area Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide looks at the definitions and units for perimeter, area, and circumference, and at the perimeter and area of different shapes, including regular...
Khan Academy
Khan Academy: Area and the Distributive Property
Use area models to represent the distributive property in finding area of rectangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Analyze Math
Analyze Math: Rectangle Problems
The geometry tutorial investigates rectangles. Topics included are diagonals, area, and perimeter. The activity has several examples with detailed solutions.
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.
CK-12 Foundation
Ck 12: Geometry: Unknown Dimensions Using Formulas Grade 7
[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.
Maths Challenge
Maths challenge.net: Inscribed Rectangle
This is a proof problem, considered a "three star" geometry problem requiring knowledge of proofs and properties of circles to solve this equal area of inscribed polygons problem.
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: Area and Perimeter on the Coordinate Plane
Find the area or perimeter of shapes like triangles, rectangles, parallelograms, and hexagons on the coordinate plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 6.ee Rectangle Perimeter 3
The purpose of this task is to ask students to write expressions and to consider what it means for two expressions to be equivalent. Aligns with 6.EE.A.
Mathigon
Mathigon: Geometry: Polygons and Polyhedra: Quadrilaterals
This lesson focuses on quadrilaterals which can fall into multiple categories based on the number of sides and the angles.
ClassFlow
Class Flow: Area Rectangle
[Free Registration/Login Required] This flipchart will help students to solve the area for various rectangles on graph paper. It asks the students to define and solve for area using the appropriate formula.
Maths Challenge
Maths challenge.net: Rectangular Circles
An area problem involving finding the area of a rectangle and a circle. The problem may be made into a general proof as well.
Illustrative Mathematics
Illustrative Mathematics: 6.g Polygons in the Coordinate Plane
The purpose of this task is for students to practice plotting points in the coordinate plane and finding the areas of polygons. This task assumes that students already understand how to find areas of polygons by decomposing them into...
Cuemath
Cuemath: Quadrilaterals
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.
Calculator Soup
Calculator Soup: Rectangle Calculator
Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter, or diagonals and you can calculate the other 3 rectangle variables. A square calculator is a special case of the rectangle...
Alabama Learning Exchange
Alex: Pump Up the Volume
In this lesson, young scholars will be required to generate a formula for volume of a rectangular prism. Students working in cooperative groups will use prior knowledge for finding area of a rectangle to determine the "amount of area in...
Annenberg Foundation
Annenberg Learner: Math in Daily Life: Home Decorating
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.
Calculator Soup
Calculator Soup: Parallelogram Calculator
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.
National Council of Teachers of Mathematics
The Math Forum: Suzanne Alejandre: Factor Lesson
Learners will discover factoring through the area of a rectangle.
ClassFlow
Class Flow: Geoboards
[Free Registration/Login Required] Geoboards bring challenge into the classroom as the student uses methods to measure length, area, and perimeters of polygons.