Worksheet
Curated OER

Spot the Differences

For Students Pre-K - 2nd
In this spot the difference worksheet, students analyze pictures of two different painted turtles to see if they can find six differences between the two.
Worksheet
Curated OER

Using Land

For Students 7th - 12th
In this land usage worksheet, students read about farmers in Bolivia are using a system called raised-bed agriculture to feed its people. Students complete 2 short answer questions based on what they read.
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
Lesson Plan
John F. Kennedy Center

The Kennedy Center: String Instruments and Pitch

For Teachers K - 1st
After learning about different stringed instruments, students create their own and then investigate how length and width of the strings affect the pitch. Lesson includes handouts, a rubric, a bibliography, and links.
Activity
TeachEngineering

Teach Engineering: Deformation: Nanocomposite Compression

For Teachers 4th - 6th
Students learn about nanocomposites, compression and strain as they design and program robots that compress materials. Student groups conduct experiments to determine how many LEGO MINDSTORMS NXT motor rotations it takes to compress soft...
Unit Plan
PBS

Pbs: Modeling Fraction and Mixed Number Division Using Arrays

For Students 3rd - 5th Standards
This video illustrates how to use an array as a visual model for solving a word problem involving the division of fractions and mixed numbers. The problem asks students to determine the width of a rectangular fennec fox den based on its...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ee Rectangle Perimeter 1

For Teachers 5th - 8th Standards
This tasks gives a verbal description for computing the perimeter of a rectangle and asks the students to find an expression for this perimeter. They then have to use the expression to evaluate the perimeter for specific values of the...
Activity
Duke University

Duke University: Web Feats Ii: Free Donuts

For Students 9th - 10th
This is an excellent interactive site which walks the student through the process of finding the maximum volume for a box given the length and width of a piece of cardboard. The site poses numerous multiple choice questions for the...
Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Measurement Inches

For Teachers 3rd - 5th Standards
This lesson plan for primary students gives students hands-on practice in using a ruler and understanding customary measurements, length and width in inches. Students also create simple one and two digit addition problems related to the...
Activity
The Math League

The Math League: Area and Perimeter

For Students 9th - 10th Standards
This tutorial provides a brief introduction about what area is, then gives the formulas for area of a square, rectangle, parallelogram, trapezoid, triangle, and circle. Examples of each formula are provided.
Activity
Texas Instruments

Texas Instruments: Maximizing the Area of a Rectangle

For Teachers 9th - 10th
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...
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Factorize

For Students 3rd - 8th
With this activity, you can visually explore the concept of factors by creating rectangular arrays. The length and width of the array are factors of your number.
Website
PBS

Pbs Learning Media: Calculating Rectangular Area

For Students 3rd - 8th
In this video segment from Cyberchase, the CyberSquad measures Judge Trudy's land claim by using tarps, fence posts and a grid made with rope.
Website
PBS

Pbs Learning Media: Comparing Regular and Irregular Areas

For Students 3rd - 8th Standards
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.
Website
PBS

Pbs Learning Media: Skate Off: Final Round, Inez vs. Rimm

For Students 6th - 8th
In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.
Lesson Plan
Alabama Learning Exchange

Alex: How Tall Is Hagrid?

For Teachers 6th - 8th
This activity uses data collection method for young scholars to mathematically compute the height and shoulder width of the character Hagrid from Harry Potter. Students will measure their own heights and shoulder widths to come up with a...
Activity
Jim Loy

Jl's Math Page: The Golden Rectangle and the Golden Ratio

For Students 9th - 10th
This is a personal site from Jim Loy that describes the golden rectangle and the golden ratio. Includes several diagrams and pictures as well as formulas. A good background in math is helpful.
Website
PBS

Pbs Learning Media: Skate Off: Round One

For Students 6th - 8th
In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.
Lesson Plan
PBS

Pbs Mathline: Stressed to the Breaking Point Lesson Plan [Pdf]

For Teachers 9th - 10th
Students explore how much weight a spaghetti bridge can support and whether width and length matter. Printable lesson.
Unit Plan
PBS

Pbs: Volume of Right Rectangular Prisms

For Students 3rd - 5th
Learn how unit cubes can be used to model the solution for the volume of a 3D figure This video focuses on calculating the volume of a rectangular prism using the equation, length x width x height. This video was submitted through the...
Unit Plan
PBS

Pbs: Modeling Fraction Division Using Arrays

For Students 3rd - 5th Standards
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the width of a rectangular platypus burrow based on its length and area. In the accompanying...
Activity
American Chemical Society

American Chemical Soc.: Best of Wonder Science: Measure Yourself in Metric [Pdf]

For Students 3rd - 5th Standards
Activities where students take turns measuring their height, the width of parts of the hand, and the distance jumped using metric units.
Unit Plan
Calculator Soup

Calculator Soup: Rectangular Prism Calculator

For Students 6th - 8th Standards
This site provides an online rectangular prism calculator. Using any three of the six attributes (length, width, height, surface area, volume or diagonal), students can calculate the other three attributes. The calculator allows students...
Unit Plan
AAA Math

Aaa Math: Perimeter of a Rectangle

For Students 3rd - 5th Standards
This resource shows students how to calculate the perimeter of a rectangle. It provides self-check exercises and simple learning games to practice the skill.

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