PPT
Curated OER

For Teachers 2nd - 4th
Young geometers take a look at a variety of shapes and name each one. All of the shapes are quadrilaterals, and they all have intersecting diagonal lines running through them. This presentation would be good to use as an introduction to...
Worksheet
Curated OER

#### Diagonal #4

For Students 1st - 3rd
In this diagonal lines worksheet, students practice drawing diagonal lines in the middle of parallel diagonal lines. Students draw three diagonal lines.
Worksheet
Curated OER

#### Similarity: Instructional

For Students 7th - 8th
In this similarity worksheet, students solve and complete 7 different problems that include determining various dimensions of mirrors shown. First, they find the length of the diagonal of the large mirror in the diagram. Then, students...
Lesson Plan
Willow Tree

#### Interior Angles, Exterior Angles, and Diagonals of Polygons

For Students 8th - 11th Standards
How does the number of sides of a polygon affect the angle measures? Learners recognize a pattern in finding the total measure of interior and exterior angles and the number of diagonals. They use the patterns to calculate the number of...
Lesson Plan
Curated OER

For Teachers 9th - 12th Standards
Teach your mathematicians how to identify different polygons based on their diagonals. Relating quadrilaterals to the different number of diagonals formed, students use the TI to create a visual of their shape.
Lesson Plan
Curated OER

#### Polygons and Diagonals

For Teachers 6th - 9th
Learners 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...
Worksheet
Curated OER

#### Countdown Challenge: Similarity

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

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

#### Linear Systems: Diagonalizing a Matrix

For Students Higher Ed
For this diagonalizing a matrix worksheet, students explore matrix factorization and use diagonal decomposition. This two-page worksheet contains examples, explanations and four practice problems.
Lesson Plan
Curated OER

For Teachers 9th - 10th
Students find the diagonals of the quadrilaterals. In this geometry lesson, students identify and use properties of quadrilaterals. They define different parts of a quadrilateral shape.
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.
Worksheet
Curated OER

#### Midpoint of a Line Segment

For Students 10th
In this line segment worksheet, 10th graders identify and solve 10 different problems that include determining the midpoint of a line segment in each. First, they determine the midpoint of a segment that connects two points. Then,...
Worksheet
Curated OER

#### Tracing Diagonal Lines

For Students 1st - 2nd
In this tracing diagonal lines worksheet, students trace dotted diagonal lines and draw diagonal likes from top to bottom. Students construct twelve diagonal lines.
Lesson Plan
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Curated OER

#### Reflecting a Rectangle Over a Diagonal

For Teachers 7th - 9th Standards
Use the handout as guided or independent practice in drawing a reflection of a rectangle over a line. Three rectangles are provided for practice in addition to a critical thinking question.
Worksheet
Curated OER

#### Printing Practice - Diagonal Lines

For Students Pre-K - K
In this printing practice learning exercise, students practice writing 4 diagonal lines. They write the lines by starting at the arrow and writing a line that stays within the diagonal tracks.
Lesson Plan
Curated OER

#### Diagonals and Altitudes

For Teachers 6th - 8th
Young scholars discover the mathematical way to find the dimensions of a diagonal. Using this process, they complete a worksheet in which they identify the relationships between different degree triangles. They review their answers and...
Worksheet
Curated OER

#### Diagonal Lines Printing Practice

For Students Pre-K - K
In this printing practice worksheet, students practice drawing 4 diagonal lines. They start at the arrow at the bottom and form the lines between the tracks.
Worksheet
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PBS

#### Working with Coordinate Planes: Activities and Supplemental Materials

For Students 5th - 8th Standards
Seven activities make up a collection of supplemental materials to reinforce graphing on a coordinate plane. Worksheet objectives include plotting coordinates within single and four quadrants, measuring straight and diagonal lines, and...
Worksheet
Curated OER

#### Fractions and Rationals

For Students 5th - 8th
Upper elementary and middle schoolers solve 16 types of problems to include writing fractions to represent shaded portions, writing a mixed number to represent certain points on a number line, and changing equivalent mixed numbers to...
Worksheet
Curated OER

#### Tracing Diagonal Lines: Top to Bottom

For Students Pre-K - K
In this tracing lines worksheet, students trace 9 diagonal lines from top to bottom. Students then draw 3 more diagonal lines on their own.
Worksheet
Curated OER

#### Parallelograms

For Students 10th
In this parallelograms activity, 10th graders identify and describe a quadrilateral, a diagonal, and a parallelogram in 7 different problems. First, they find the values of x, y, and z in each quadrilateral to prove that it is a...
Worksheet
Curated OER

#### Special Right Triangles

For Students 10th
In this special right triangles worksheet, 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 find the length...
Worksheet
Curated OER

#### Pythagorean Theorem Word Problems

For Students 10th
In this Pythagorean theorem worksheet, 10th graders solve 10 different word problems that include using the Pythagorean theorem in each. First, they determine the height of an equilateral triangle. Then, students determine the length of...
Lesson Plan
Curated OER

#### Geometry Journal: Isosceles Triangles

For Teachers 10th - 12th
In this isosceles triangles worksheet, students justify and determine the symmetry of an isosceles triangle. They explore the bisector of rectangles. This three-page worksheet contains two problems. Answers are listed on page three.