Curated OER
Boarding of Symmetrical Shapes
Second graders use geoboards to model polygons and to practice finding lines of symmetry.
Curated OER
Cover the Triangle
Students explore geometric shapes using pattern blocks. They use specific shapes to fill in triangles, color-in their solutions, and discuss the results with a partner.
Curated OER
Covering Spaces
Third graders become more familiar with various geometric shapes by completing the games and activities in this instructional activity. They keep track of the number of each shape they use in each of the three ways.
Curated OER
Polygons
Fourth graders identify and describe lines, shapes, and solids using formal geometric language. They use Inspiration to create a graphic organizer and outline of polygons.
Curated OER
Mondrian, Math, and Amazing Colors
Students study geometric shapes, lines, and the primary colors as they create Mondrian-like art prints.
Curated OER
Geometry: Lesson 2
Eighth graders engage in a instructional activity that is concerned with examining two dimensional figures with different properties that include circles, triangles, queadrilaterals, etc... They identify the types of figures that is...
Curated OER
Area of Parallelograms
Seventh graders review the process of finding the area of a rectangle and complete a couple of examples as a class. They discuss what a parallelogram is and what the formula would be for finding its area. They listen to an explanation...
Curated OER
Puzzled?
First graders practice identifying simple geometric shapes. As a class, they discuss positional words and review the words for simple shapes and their characteristics. They work together to create their own puzzle using the shapes.
Curated OER
Graphing Fun
First graders analyze objects and make a graphing picture to analyze the data. In this graphing lesson, 1st graders complete an object graph assessment, a picture graph assessment, and a bar graph assessment to analyze their given objects.
Curated OER
Tangrams
For this tangram worksheet, students trace solutions to seven problems/sets of instructions on a separate sheet of paper. Reference website is given for additional activities.
Curated OER
Pattern Block Activities
Students practice various math skills by using manipulative activities. In this math manipulative lesson, students sort shapes, build hexagons, and build shapes using manipulatives. These activities would be great for parent ed or...
Curated OER
Fashion Day
Eighth graders practice using basic measurements to solve word problems.They also investigate finding the perimeter of different polygons and define the characteristics to classify the shape as a polygon.
Curated OER
Fractions of a Set
Third graders use fractions to describe part of a set. In this fractions lesson, 3rd graders are introduced to fractions through a book and use pattern blocks to describe a fraction as a part of a set. This lesson includes a scripted...
Texas Education Agency
Texas Gateway: Area of Triangles, Parallelograms, and Trapezoids
These activities provide an opportunity for students to explore the area formulas for triangles, trapezoids, and parallelograms.
CK-12 Foundation
Ck 12: Geometry: Trapezoids Grades 8 10
[Free Registration/Login may be required to access all resource tools.] Apply the properties of trapezoids.
CK-12 Foundation
Ck 12: Elem Math: Determining Unknown Angles in Trapezoids
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems on finding the missing angles in a trapezoid.
Geometry Help
Geometry Help: Trapezoids
Explains the basic concept of trapezoids with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Sophia Learning
Sophia: Coordinate Geometry of Trapezoids: Lesson 3
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a trapezoid in a coordinate plane. It is 3 of 4 in the series titled "Coordinate...
CK-12 Foundation
Ck 12: Geometry: Trapezoids Grades 9 10
[Free Registration/Login may be required to access all resource tools.] This concept will teach students to use and apply the properties of trapezoids.
Math Open Reference
Math Open Reference: Trapezoid
Learn about trapezoids with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Texas Instruments
Texas Instruments: Investigating Properties of Trapezoids
Students draw trapezoids and investigate their properties. They derive the area formula for a triangle from the area formula for a trapezoid. They also investigate the terms: Isosceles trapezoid and Tessellation. Numerous supplementary...
Texas Instruments
Texas Instruments: Investigating Properties of Trapezoids
This activity uses the graphing calculator to investigate trapezoids. Numerous supplementary materials are included. [Requires Adobe Reader.]
Sophia Learning
Sophia: Trapezoid Height and Base: Lesson 2
This lesson will demonstrate how to solve for an unknown height or base of a trapezoid when given the area. It is 2 of 5 in the series titled "Trapezoid Height and Base."
CK-12 Foundation
Ck 12: Geometry: Area and Perimeter of Trapezoids
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area and perimeter of a trapezoid. Students examine guided notes, review guided practice, watch instructional videos and...
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