Worksheet
Curated OER

More Quadrilaterals

For Students 3rd - 5th
In this quadrilaterals worksheet, students identify shapes and their properties. In this problem solving worksheet, students answer fourteen questions.
Lesson Plan
Curated OER

Going out of Business: Pythagorean Theorem

For Teachers 8th - 9th
Students find the length of diagonals.  In this Pythagorean theorem lesson, students use the Pythagorean theorem to determine the length of diagonals. 
Lesson Plan
Curated OER

Symmetries in Quadrilateral Tilings

For Teachers 7th - 8th
Students analyze symmetries of quadrilateral tilings and discover how various types of symmetries, used alone or in combination, can generate the same pattern in more than one way.
Lesson Plan
Curated OER

Area of Polygons

For Teachers 10th
In this area of polygons worksheet, 10th graders solve and complete 12 various types of problems. First, they find the area of a given square. Then, students find the length of an original square as illustrated. They also write an...
Lesson Plan
Curated OER

Junior Architects of America

For Teachers 3rd - 4th
Students create entries for the Architects of America contest, including a model of a futuristic structure, blueprints, a list of all plane and solid shapes in the structure, a persuasive argument paper that describes why the structure...
Worksheet
Curated OER

Quadrilaterals and their Diagonals

For Students 10th
In this quadrilaterals and their diagonals worksheet, 10th graders solve 3 problems related to determining various types of quadrilaterals. First, they draw the diagonals for each of the quadrilaterals and determine for which the...
Worksheet
Curated OER

Quadrilaterals

For Students 10th
In this quadrilaterals worksheet, 10th graders solve and complete 10 different problems that include various types of quadrilaterals to identify. First, they find the value for each variable in the illustrated quadrilateral. Then,...
Lesson Plan
Curated OER

Intro To Quadrilaterals

For Teachers 1st - 3rd
Students engage in a lesson that is concerned with the concept of quadrilaterals and how they are used to create a rectangle for a door. They create a drawing of a quadrilateral while finding the sum of the angles. They practice problems...
Worksheet
Curated OER

Law of Cosines

For Students 10th
In this Law of Cosines worksheet, 10th graders solve 10 different problems related to applying the Laws of Cosine. First, they determine the length of a side rounded to the nearest integer. Then, students determine the largest angle of a...
Worksheet
Mt. San Antonio Collage

The Trapezoid

For Students 9th - 12th Standards
Enjoy this nicely organized activity that puts together multiple problems regarding trapezoid proofs. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments.
Lesson Plan
Curated OER

Quadrilateral Bunny

For Teachers 9th - 11th
Learners identify the properties representing quadrilateral. In this geometry lesson plan, students differentiate between special and regular quadrilaterals. They discuss and demonstrate hierarchy of quadrilaterals.
Lesson Plan
Curated OER

Properties of Parallelograms

For Teachers 9th - Higher Ed Standards
Scholars explore parallelograms in this geometry lesson plan. They investigate the properties of a parallelogram. Assisted by technology, your learners will construct a parallelogram and examine the sides, angles, and diagonals to...
Worksheet
Curated OER

Perimeter of Kite

For Students 9th - 11th
In this geometry activity, students calculate t he perimeter of a kite given the values of the sides and diagonals. There are 6 questions with an answer key.
Worksheet
Curated OER

Properties of a Quadrilateral

For Students 10th
In this geometry worksheet, 10th graders use coordinate geometry to examine the lengths, slopes, and midpoints of the diagonals of the different quadrilaterals in order to arrive at conclusions regarding the properties of the diagonals....
Worksheet
Curated OER

Quadrilateral Explorations

For Students 9th
In this geometry learning exercise, 9th graders classify quadrilaterals by using coordinate geometry and the properties of various quadrilaterals. The seven page learning exercise contains eleven...
Interactive
Curated OER

Quadrilaterals Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students identify the properties of quadrilaterals. they find the length of th sides and angles of quadrilaterals. There are 5 questions with an answer key.
Worksheet
Curated OER

Quadrilaterals

For Students 10th
In this quadrilaterals worksheet, 10th graders solve 10 different problems that include the quadrilateral family and properties. First, they determine the area of a rectangle given the perimeter and length. Then, students determine the...
Worksheet
Curated OER

The Quadrilateral Family

For Students 10th
In this quadrilaterals learning exercise, 10th graders solve and complete 10 different problems that include identifying various quadrilaterals. First, they indicate whether the statements are true or false for each. Then, students...
Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
In this similarity worksheet, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page worksheet contains one similar problem with 13 related questions.
Worksheet
Curated OER

Drawing Quadrilaterals

For Students 6th - 8th
In this math instructional activity, learners draw quadrilaterals and also find the sums of the inner angles for each. They practice drawing rhombuses as unique quadrilaterals.
Lesson Plan
Curated OER

Polygons and Diagonals

For Teachers 6th - 9th
Students practice measuring the interior angles of given regular polygons and create a formula for finding the measure of th interior angles of any polygon. They determine the relationships between the number of vertices's or sides in a...
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of a parallelogram. In this geometry lesson plan, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
Lesson Plan
1
1
Illustrative Mathematics

Right Triangles Inscribed in Circles II

For Teachers 9th - 10th Standards
So many times the characteristics of triangles are presented as a vocabulary-type of lesson, but in this activity they are key to unraveling a proof. A unique attack on proving that an inscribed angle that subtends a diameter must be a...