Curated OER
Rectangles
In this rectangle worksheet, students focus on mastery of the shape. Students trace 3 horizontal and 3 vertical rectangles.
Curated OER
Tracing and Coloring Rectangles
In this geometry worksheet, students examine 14 rectangles of different sizes which are shown with dotted lines. Students trace the rectangles and "colour" in the shapes.
Curated OER
Which One Does Not Belong?
In this mathematics worksheet, students circle the shape in each group that is different. there are six different groups to identify on the sheet.
Curated OER
Minimize Perimeter
Students practice calculating the perimeter of different sized rectangles. Individually, they identify the derivations of a function that can show the perimeter and determine how to minimize the perimeter within a fixed area. They use...
Curated OER
Minimize Perimeter -- Lecture
Middle schoolers are introduced to the concept of perimeter. As a class, they listen to a lecture describing the derivations of a function that describes perimeter. They calculate the minimum perimeter of a rectangle and determine the...
Curated OER
Exploring the Golden Rectangle
Students will construct a golden section and a golden rectangle and study their characteristics and connections with the Fibonacci series. They import pictures from the internet and download them into the Sketchpad. Using their "golden"...
Curated OER
How Much Grass Should I Buy?
Students examine a variety of real life situations in which they must access information, select an appropriate formula, and calculate an answer. A rectangular piece of grass provides an opportunity for the exploration of this lesson.
Wolfram Research
Wolfram Math World: Golden Rectangle
This site contains the definition for the term "Golden Rectangle," complete with detailed pictures, charts, and explanations.
CK-12 Foundation
Ck 12: Elem Math: Determining Unknown Angles Within Rectangles and Squares
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to determine missing angles within rectangles and squares.
CK-12 Foundation
Ck 12: Elem Math: Identifying Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems on identifying rectangles, squares, circles and triangles.
CK-12 Foundation
Ck 12: Elem Math: Identifying the Properties of Rectangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video tutorial and attempt practice problems on identifying the properties of rectangles.