Begin from the inside and work outward. Pupils construct quadrilaterals based upon the descriptions of the diagonals. Pairs then work through several configurations of diagonals and determine the types of quadrilaterals they can form....

Upper graders and middle schoolers find the area of nine polygons. They find the area of triangles, parallelograms, and irregular polygons given a sketch of each figure on grid paper.

If you like to start each day with a new math challenge or warm-up, this resource is a must have. It includes 36 slides, each containing a different math challenge that stimulates algebraic reasoning, problem solving, and basic math...

Fourth and fifth graders work in pairs  explore quadrilaterals. In this problem-solving lesson, learners participate in hands-on activities that require them to identify, describe, compare, and classify quadrilaterals. This is meant to...

Tenth graders classify quadrilaterals graphed on a coordinate plane. In this geometry lesson, 10th graders classify quadrilaterals based upon side length, angle measures, parallel or perpendicular sides, and diagonal relationships. The...

In this sea squares worksheet, 10th graders solve 5 different problems that include various geometrical figures. First, they draw a number line using one color. Then, students draw 2 obtuse angles and 3 isosceles triangles with different...

Young scholars classify geometric shapes. In this polygon lesson, students use the computer program Geometer's Sketchpad as well as tangrams to explore polygons. Young scholars compare and contrast the different shapes to classify them.

Investigate the properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral. In this properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral lesson, students use...

High schoolers investigate quadrilateral construction in this geometry lesson. They use Cabri Jr. to construct the different quadrilaterals from the quadrilateral hierarchy given minimal definitions. The lesson reinforces the difference...

High schoolers discover properties of parallelograms as they construct a parallelogram using Cabri Jr. They will measure angles and side lengths of their construction and determine the relationship between the diagonals of a...

Learners investigate the area of various figures. They construct triangles and quadrilaterals using Cabri Jr. and discuss the relationships between different angles, side lengths, and figures.

High schoolers explore the concept of quadrilaterals as they find the midsegments of quadrilaterals using Cabri Jr. on a graphing calculator. They find midpoints, slopes, angles, and distances of lines and angles.

Working on symmetry in your class? If so, this worksheet might be for you. Learners observe different triangles and quadrilaterals, determine which are symmetrical, draw in the lines of symmetry, and color the symmetrical shapes. In...

Work the problem shown in this video to learn how to determine the area of a parallelogram. Basic algebra, area, and the Pythagorean Theorem are used to find the missing value and solve the problem of area.

Students investigate scale factors of figures.  In this scale factors of figures activity, students find the scale factor given its' original perimeter and dilated perimeter.  Students find the area of an image given the scale factor and...

For this using slope within geometric problems worksheet, students solve 3 graphing problems. Students graph vertices on a coordinate plane. Students use slope and distance formulas to identify the type of quadrilateral.

In this shapes worksheet, 5th graders use the drawing given to answer and name the following 4 types of shapes: triangles, pentagon, octagon and quadrilaterals. Students connect the 2 points G and D and then name the shape of formed....

Students study polygons. In this math lesson, students play a game in which they learn the classification system for polygons. Students identify the properties of quadrilaterals.

Students engage in a activity 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...

The quadrilateral is a very interesting shape. Have your class construct midpoint quadrilaterals within quadrilaterals on their Ti-Nspire. They measure the length and angle measures of sides and angles of the midpoint quadrilateral. Full...

Scholars examine six common quadrilaterals and identify each by writing its name beneath the shape. Next, they sketch four shapes: parallelogram, rectangle, rhombus, and trapezoid. Once finished, review which features helped learners...

In this identifying quadrilaterals and angles true and false worksheet, students review sides and angles of a quadrilateral, parallelogram, trapezoid, rectangle, rhombus, and square and write true and false answers to statements....

Students classify quadrilaterals, In this quadrilaterals instructional activity, students watch a video about parallelograms, discuss the different types of quadrilaterals, and complete a worksheet classifying quadrilaterals.

This resource provides 5 different worksheets on the topic of polygons and symmetry. These worksheets cover rotational symmetry, lines of symmetry, symmetry of regular polygons, special quadiralaterals, and polygon transformation. The...