OER Commons
Oer Commons: Diagonals of a Rhombus
In this instructional activity, young scholars learn how the diagonals of a rhombus are related. They use interactive sketches to learn about the properties of the angles and diagonals of squares, rectangles, rhombuses, parallelograms,...
CK-12 Foundation
Ck 12: Interactive Geometry: 4.7 Theorems About Quadrilaterals
Use quadrilateral properties that are unique to parallelograms to prove that the given shape is a parallelogram.
Quia
Ixl Learning: Types of Quadrilaterals
Brush up on your math skills relating to the types of quadrilaterals then try some practice problems to test your understanding.
Quia
Ixl Learning: Rhombuses
Brush up on your math skills relating to rhombuses then try some practice problems to test your understanding.
Quia
Ixl Learning: Parallelograms
Brush up on your math skills pertaining to parallelograms then try some practice problems to test your understanding.
Other
Nearpod: 2 D Shapes
In this lesson on 2D shapes, 3rd graders will learn to discriminate quadrilaterals from other polygons. Additionally, they will be able to identify attributes of a square, rectangle, and rhombus.
E-learning for Kids
E Learning for Kids: Math: School Bus: 2 D Space
Students will play learning games to explore parallel lines and two-dimensional shapes.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rhombus
This is a very brief look at the rhombus, which is a quadrilateral shape with four equal sides. Features include a JavaSketchpad that allows you to manipulate the shape.
History is Fun
Jan Brett: Geometric Shapes Flashcards Pdf
Print out these colorfully illustrated PDF file pages to practice learning your basic two dimensional geometric shapes. Fold them in half and one side shows the shape while the other side shows the shape with the correct name. Put them...
The Math League
The Math League: Figures and Polygons
This website has basic definitions for most polygons, regular and irregular.
Other
Ic Teachers: Shapes Quadrilaterals
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Sophia Learning
Sophia: Rhombi Practice Problems: Lesson 4
This lesson will provide examples that use the characteristics of rhombi to solve for unknown variables, side lenths, and angle measures. It is 4 of 5 in the series titled "Rhombi Practice Problems."
Ducksters
Ducksters: Kids Math: Quadrilaterals
Explore four-sided polygons called quadrilaterals on this site.
ClassFlow
Class Flow: Segments and Polygons
[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.
Free Math Help
Free Math Help: Special Parallelograms: Squares, Rectangles, and Rhombuses!
Examines special parallelograms. Students learn about a rectangle, rhombus, and square. Definitions and examples with solutions are included.
ClassFlow
Class Flow: Playing With Shapes
[Free Registration/Login Required] This flipchart is a small lesson for 2nd grade math-geometry. Once students have been introduced to the key vocabulary terms in geometry, the teacher can reinforce those shapes, terms, and some...
SMART Technologies
Smart: Shape Attributes
The introductory pages introduce the shapes and their attributes: triangle, rectangle, square, rhombus, circle, and oval. The additional pages allow students to practice shape recognition, tracing shapes, and drawing shapes.
Math Open Reference
Math Open Reference: Perimeter of a Rhombus
Learn about the perimeter of a rhombus with this helpful reference tool. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Calculator Soup
Calculator Soup: Rhombus Calculator
Calculate certain variables of a rhombus depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of a rhombus.
Calculator Soup
Calculator Soup: Parallelogram Calculator
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.
Math Open Reference
Math Open Reference: Diagonals of a Rhombus
Learn about the diagonals of a rhombus with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rhombus
Find a quick, concise explanation of a rhombus. An example is given and clearly explained.
Curated OER
Ic Teachers: Shapes Quadrilaterals
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...