This challenging problem and brainteaser gives students an opportunity to compose and decompose polygons to make rectangles.

This short video and interactive assessment activity is designed to give fourth graders an overview of ellipses, trapezoids, rhombi, and polygons.

Students will practice their knowledge of polygons by sorting them using a Carroll Diagram. This interactive game can be used with a whole group or small group of students to reinforce the concept of quadrilaterals as polygons. This whiteboard activity gives instant feedback if students sort incorrectly.

This lesson is for grade 3 on math. At Home Learning Lessons are a partnership between the North Carolina Department of Public Instruction, PBS North Carolina, and the William and Ida Friday Institute for Educational Innovation. Each lesson contains a video instructional lesson, a PDF lesson plan with a transcript, and a PDF file of extension activities.

In this interactive math game, students will find the different type of quadrilaterals for each level of play. They will find quadrilaterals, parallelograms, square, rectangles, rhombus, and trapezoids.

In this lesson, students will use their knowledge of quadrilaterals by explaining and drawing different quadrilaterals to determine the best shape for a new table for a TV room.

This activity is designed to help students overcome the confusion that can arise when they learn that a square is also a rectangle—and a rhombus and a parallelogram. Students create a flowchart to visualize the properties of quadrilaterals. In the finished flowchart, the quadrilateral is at the top and the square is at the bottom, because the square has the greatest number of properties.

This activity gives students the opportunity to use concrete and dynamic representations of the shapes. At the completion of this activity, students will have a discovered a list of properties for each of the six special quadrilaterals. The final page of the quiz enables students to summarize all their findings in a table that can be retained for future use.

This course was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 3rd Grade Math. 

This course was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 3rd Grade Math.

This task provides students with the opportunity to classify and sort quadrilaterals based on their attributes and properties. This is remixable by adding student work or you could download the task and upload a similar task.

The purpose of this task is to help students differentiate between a polygon and the region inside of a polygon so that they understand what is being measured when the perimeter and area are being found.

It is a math lesson integrated computer science. It is designed as a project based learning lesson, and started with a real-life scenario. It requires students to solve a real-life situation with integrated subjects. The topic of the lesson is WCPSS G3 Unit 5 Reasoning with shapes. It asks students to identify different types of quadrilaterals including rhombus, rectangles, squares, parallelograms and talk about their attributes. As the same time, students will model how computer hardware and software work together as a system to accomplish tasks and conduct a program using Scratch including sequence and simple loop.

Students will be able to describe the attributes of the isosoles, equilateral, and scalene triangles.

In this lesson students learn to classify quadrilaterals, including trapezoids, with a focus on different types of parallelograms. They learn the relationships among rectangles, squares, and rhombuses as different types of parallelograms.