CK-12 Foundation
Ck 12: Math Grade 4
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
Cuemath
Cuemath: Plane Shapes
A comprehensive guide for learning all about plane shapes with definitions, properties, types, solved examples, and practice questions.
E-learning for Kids
E Learning for Kids: Math: Russian Toy Store: 2 D Shapes
Mattie and her four sisters are visiting a toy store. Can you help them find different shapes in the toy store?
E-learning for Kids
E Learning for Kids: Math: Music: 2 D Shapes
Kyan is an African villager. Can you help him name and define different parts of shapes?
E-learning for Kids
E Learning for Kids: Math: Group of Pyramids: 2 D Shapes
Abeni works at the pyramids. Visit her and find out more about circles and triangles.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Rectangular Well Superposition
A simulation that displays the 2D evolution of the position-space of a wave in an infinite 2D rectangular well.
Better Lesson
Better Lesson: Making New Shapes With Shapes
My first graders have been studying the defining attributes of 2D shapes. They are going to love using toothpicks and marshmallows to present their knowledge of 2D and create 3D shapes.
TED Talks
Ted: Ted Ed: Exploring Other Dimensions
Imagine a two-dimensional world- you, your friends, everything is 2D. In his 1884 novella, Edwin Abbott invented this world and called it Flatland. Alex Rosenthal and George Zaidan take the premise of Flatland one dimension further,...
TED Talks
Ted: Ted Ed: Making a Ted Ed Lesson: Animating Zombies With Puppets
What style of animation perfectly mimics the movement of zombies? Puppet animation allows for just the right amount of zombie-like stiff limbs and jerky stumbles. TED-Ed animators show how to bring a zombie to life through 2D puppet...
TED Talks
Ted: Ted Ed: The Mathematics of Sidewalk Illusions
Have you ever come across an oddly stretched image on the sidewalk, only to find that it looks remarkably realistic if you stand in exactly the right spot? These sidewalk illusions employ a technique called anamorphosis- a special case...
University of Cambridge
University of Cambridge: Maths and Sports: National Flags
During the Olympic and Paralympic Games many national flags will be on display. This activity explores 2D shapes, angles and symmetries in the context of flag designs, and is designed to be accessible to primary pupils at Key Stage 2.
Science Education Resource Center at Carleton College
Serc: Serpentinite in Subduction Zones: How Do We Find It, and How Common Is It?
An advanced lesson in the study of serpentinites in subduction zones. Students will need a good understanding of mineralogy. of how to read phase diagrams and 2D images of the seismological features of subduction zones.
Khan Academy
Khan Academy: Nets of 3d Figures
In this exercise, students practice identifying the 2D nets of 3D figures. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Elem Math: Determining Whether Given Shapes Are Rotationally Symmetrical
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to look at 2D shapes and decide if they have rotational symmetry. Includes video demonstrating a sample problem and a set...
CK-12 Foundation
Ck 12: Elem Math: Determining Whether Various Shapes Have Lines of Symmetry
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to state whether the given 2D shapes have line symmetry. Includes video demonstrating a sample problem [1:14] and a set...
CK-12 Foundation
Ck 12: Elem Math: Identifying Lines of Symmetry in Various Shapes
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to identify where a line of symmetry should be and whether a 2D shape has a line of symmetry. Includes video...
Khan Academy
Khan Academy: Nets of Polyhedra
Practice matching 2D nets to the 3D shapes the fold up into. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Incorporated Research Institutions for Seismology
Iris: Seismic Sequences
In this exercise, students will interpret one (1) 2D seismic line- Line C. This line is from offshore West Africa. This is as specific that the students need to know to work the exercise. During the review of the solution, it will be...
Topmarks Online
Topmarks: Shape Patterns
Shape Patterns is a sequencing game where children from 3 to 8 years of age need to complete the pattern of different coloured 2D shapes. Three levels of difficulty.
Better Lesson
Better Lesson: Super Shape Ornament Review
In December, it's fun to decorate for the holidays. This lesson includes 2D shape and counting practice!
Better Lesson
Better Lesson: Building With Shapes
I love blending art and math. I want my students to develop a depth of knowledge for 2D plane shapes and distinguish polygon from non-polygon shapes.
Better Lesson
Better Lesson: Introduction to Angles
See this activity to help students to learn about angles and identify the number of angles in 2D shapes. Lesson plans includes introductory activity, guided practice, and independent practice.
Khan Academy
Khan Academy: Forest Environment
Creating a classic 2D "side-scroller" game in which the view is side-on and the character is moving forwards and backwards.
NumberNut
Number Nut: Shapes, Symbols, and Colors: 2 D Shapes
Did you know that two-dimensional shapes are also called polygons? This lesson describes the various 2-D shapes and includes two interactive games to reinforce skills.
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