Curated OER
Pass It On
Fifth graders participate in a class activity that helps them learn some geometric terms along with their definitions. They describe relationships between two and three-dimensional shapes and analyze attributes and properties of...
Curated OER
Minerals
Young scholars explore the concept of minerals. In this minerals lesson, students discuss how cooling affects the size of crystals. Young scholars discuss how the structure of minerals is a tetrahedron. Students discuss the structure of...
Free Math Help
Free Math Help: Geometry: Parallelograms: What Is a Parallelogram?
The lesson discusses parallelograms. The resource examines facts, diagonals, and sides of a parallelogram. Explanations and examples are included.
CK-12 Foundation
Ck 12: Geometry: Parallelograms Study Guide
This study guide on parallelograms covers types of quadrilaterals, properties of parallelograms and theorems that describe them, how to identify parallelograms, and special types of parallelograms. It is available for download with free...
CK-12 Foundation
Ck 12: Geometry: Parallelograms
[Free Registration/Login may be required to access all resource tools.] Apply parallelogram theorems.
CK-12 Foundation
Ck 12: Geometry: Parallelograms
[Free Registration/Login may be required to access all resource tools.] This concept teaches students properties of and theorems about parallelograms and how to apply them.
CK-12 Foundation
Ck 12: Geometry: Parallelogram Classification
[Free Registration/Login may be required to access all resource tools.] Classify a parallelograms as a rhombus, rectangle, or square.
CK-12 Foundation
Ck 12: Elem Math: Determining Unknown Angles in Parallelograms
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to determine missing angles in a parallelogram.
Texas Instruments
Texas Instruments: Properties of Parallelograms
This activity shows the student how to construct a parallelogram using Cabri Geometry. Questions are asked after the construction.
Math Planet
Math Planet: Geometry: Parallelogram, Triangles Etc
Resource examines the area of geometric solids through examples and a video lesson. [0:39]
CK-12 Foundation
Ck 12: Geometry: Estimation of Parallelogram Area in Scale Drawings
[Free Registration/Login may be required to access all resource tools.] In this lesson students estimate actual areas of parallelograms in scale drawings. Students examine guided notes, review guided practice, watch instructional videos...
CK-12 Foundation
Ck 12: Geometry: Area of a Parallelogram
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a parallelogram given its base and height. Students examine guided notes, review guided practice, watch instructional videos...
CK-12 Foundation
Ck 12: Geometry: Area of a Parallelogram
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to find the area of a parallelogram. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Geometry: Parallelogram Classification
[Free Registration/Login may be required to access all resource tools.] This concept teaches students the properties of rhombuses, rectangles, and squares.
Analyze Math
Analyze Math: Parallelogram Problems
Learners explore the geometry topic of parallelograms. The word problems include detailed solutions.
CK-12 Foundation
Ck 12: Unknown Dimensions of Parallelograms Grades 6 7
[Free Registration/Login may be required to access all resource tools.] Find the unknown dimensions of a parallelogram given its area and another measurement.
CK-12 Foundation
Ck 12: Unknown Dimensions of Parallelograms Grade 7
[Free Registration/Login may be required to access all resource tools.] Find unknown dimensions of parallelograms given area and one other dimension.
CK-12 Foundation
Ck 12: Perimeter of Parallelograms: Around a Trampoline
[Free Registration/Login Required] Students move the points on the parallelogram to determine the perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
Math Open Reference
Math Open Reference: Parallelogram: (Coordinate Geometry)
Students are able to manipulate a parallelogram on a coordinate grid to explore properties of a parallelogram and then calculate the distance of the sides, altitude, and area. The resource also includes links to further explain important...
Texas Instruments
Texas Instruments: Parallelograms: Discovering Their Properties
Students use the TI-89 with CABRI Geometry to discover properties of parallelograms. They will construct a figure and use the definition to discover the figure is a parallelogram.
CK-12 Foundation
Ck 12: Geometry: Quadrilaterals That Are Parallelograms
[Free Registration/Login may be required to access all resource tools.] Prove a quadrilateral is a parallelogram.
CK-12 Foundation
Ck 12: Geometry: Area of a Parallelogram
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of parallelograms given the base and the height. Students examine guided notes, review guided practice, watch instructional...
Math Planet
Math Planet: Geometry: Properties of Parallelograms
The properties of parallelograms are explained through examples and a video lesson. [0:53]
CK-12 Foundation
Ck 12: Geometry: Quadrilaterals That Are Parallelograms
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to prove that a quadrilateral is a parallelogram given the properties of parallelograms.