Curated OER
Tell Me! Geometry
In this geometry and measurement worksheet, students solve 20 problems pertaining to parallel lines, geometric figures, right angles and simple measurements.
Curated OER
Opposite Angles in a Cyclic Quadrilateral
Learners investigate cyclic quadrilaterals in this geometry instructional activity. They use Cabri Jr to explore the sum of the measures of opposite angles in a cyclic quadrilateral. The dynamic nature of Cabri allows students to form...
Curated OER
Creating a Cyclic Quadrilateral
Identify and make conjecture about properties of cyclic quadrilaterals. Students use the TI Navigator to create different shapes and draw conclusions.
Curated OER
Classify Quadrilaterals
Here is a quadrilateral worksheet in which learners choose words that describe shapes, words to complete sentences that describe shapes. A reference web site is given for additional activities.
Shodor Education Foundation
An Introduction To Quadrilaterals
Young geometers investigate and apply properties of quadrilaterals. After a review and discussion of key terms, students use a computer applet to explore four-sided figures and classify them according to their attributes. The...
Mathematics Vision Project
Module 5: Modeling with Geometry
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Curated OER
Symmetries of a Quadrilateral II
Learners investigate the symmetries of a convex quadrilateral in a collaborative activity. Rigid motion and complements are explored as learners analyze different cases of reflections across a line.
Scholastic
Study Jams! Classify Quadrilaterals
Face the vertex of two-dimensional shapes and discover what each figure requires as part of its classification. With one shape per slide, learners see what makes each shape special and compare it to others with similar qualities.
EngageNY
Geometry Module 5: End-of-Module Assessment
The lessons are complete. Learners take an end-of-module assessment in the last installment of a 23-part module. Questions contain multiple parts, each assessing different aspects of the module.
Curated OER
The Very Busy Spider
Youngsters explore visual arts by participating in a geometry identification activity. They read the book The Very Busy Spider and identify the techniques spiders use to create webs. Have you ever noticed that their webs are geometric...
Curated OER
Symmetry Using Polygons
Working on symmetry in your class? If so, this instructional activity might be for you. Learners observe different triangles and quadrilaterals, determine which are symmetrical, draw in the lines of symmetry, and color the symmetrical...
Curated OER
Applications of Properties of Quadrilaterals in the Coordinate Plane
Students explore the concept of quadrilaterals. In this quadrilaterals lesson, students use the slope formula, midpoint formula, and distance formula to justify that a given quadrilateral is a parallelogram.
Curated OER
Coordinate Geometry Proofs
In this coordinate geometry worksheet, 10th graders solve and draw 10 different problems related to complete proofs in coordinate geometry. First, they prove that a figure with given points is another figure by using slopes. Then,...
Curated OER
Proofs in Coordinate Geometry
In this coordinate geometry activity, students identify the lengths of a quadrilateral and find the slope of a line. They use proofs to identify the characteristics of given quadrilaterals. This one-page activity contains ten problems.
Curated OER
Quadrilaterals
In this geometry instructional activity, students fill out three columns with thoughts on quadrilaterals. They write what they know, what the want to know and what they have learned.
Curated OER
Quadrilaterals
In this quadrilaterals activity, 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...
Curated OER
How to Classify Quadrilaterals
In this how to classify quadrilaterals learning exercise, 3rd graders choose words to describe 3 quadrilaterals and to complete 3 sentences about the shapes.
Curated OER
Nine Quadrilateral Problems Involving Angle Measures and Classification
In this quadrilaterals worksheet, learners calculate the measure of angles in five parallelograms, name a quadrilateral, and find values of given variables in three diagrams. The solutions are provided.
Curated OER
The Quadrilateral Family
For this quadrilaterals worksheet, 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 determine...
Curated OER
Geometry: Quadrilateral, Triangle, Parallelogram
In this geometry worksheet, students decide which characteristic, quadrilateral, triangle, or parallelogram make sets of shapes fall under that same category.
Curated OER
Geometry
In this geometry review game activity, students use the provided game cards and calling cards to play a Bingo-like game. Students learn geometric terms while playing a group game.
Curated OER
1st Geometry
In this geometry worksheet, students choose the multiple choice answer to 15 questions involving several different elements of geometry.
Curated OER
Geometry and Spatial Sense
Students investigate geometric shapes in 2 and 3 dimensions. In this geometry lesson, students create a model chocolate factory working in groups and using an actual cake. Students take a quiz about measurement equations...
Curated OER
Classifying Quadrilaterals
Fourth graders select the Quadrilateral Quest game, they find all quadrilaterals with the given properties. They are told that the word congruent in this game means equal. Students are given two to four properties of quadrilaterals. ...