Curated OER
Going out of Business: Pythagorean Theorem
Students find the length of diagonals. In this Pythagorean theorem lesson, students use the Pythagorean theorem to determine the length of diagonals.
Curated OER
Special Right Triangles
In this special right triangles instructional activity, 10th graders solve 9 different problems related to measuring various types of right triangles. First, they find the values of x and y in each right triangle shown. Then, students...
Curated OER
Elements Picture Assignment
Students identify the basic structural and decorative designs, create examples of line (horizontal/vertical/curved/diagonal), as well as identify and explain the difference between shape and form. Then, they identify and explain the use...
Curated OER
Discovering the Area and Perimeter of Triangles
Eighth graders identify how to find the area and perimeter of rectangles and triangles. They discuss their understanding of area and perimeter and how the two concepts are applied in the real world. Finally, 8th graders determine the...
Curated OER
Interior Design: Poster Board Lines
Observe different types of lines and apply skills to create posters demonstrating line directions. Discern the four different types of lines and the ambience each creates in a room. In groups, explain each line poster.
Math Open Reference
Math Open Reference: Diagonals of a Square
A complete reference guide to diagonals of a square. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.