Virginia Department of Education
Exploring 3-D Geometry
Take young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on...
Mathematics Vision Project
Circles: A Geometric Perspective
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
Mathematics Vision Project
Module 6: Connecting Algebra and Geometry
A geometry module connects algebraic reasoning to geometry. It challenges scholars to investigate the slope criteria for parallel and perpendicular lines, prove theorems involving coordinate geometry, and write equations for circles and...
Curated OER
Geometry In Space
Students Fulfill the requirements of Texas Standards as it relates to math and science. In this circle lesson, students identify the arcs and angles of a circle as it relates to Pi. They solve real life scenarios using space as an example.
PBS
Accessible Shapes
All the 2-D and 3-D measurement work you need is in one location. Divided into three sections, the geometry lesson plans consist of visualization of three dimensions, classifying geometric figures, and finding surface area and volume....
Mathematics Vision Project
Module 5: Modeling with Geometry
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Mathematics Vision Project
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This...
Curated OER
Transformations in the Coordinate Plane
Your learners connect the new concepts of transformations in the coordinate plane to their previous knowledge using the solid vocabulary development in this unit. Like a foreign language, mathematics has its own set of vocabulary terms...
CK-12 Foundation
Ck 12: Geometry Software for Constructions
[Free Registration/Login Required] Students explore the concept of using geometry software to construct geometric shapes by navigating through the interactive learning module and then answering questions that go along with the module....
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.
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?
CK-12 Foundation
Ck 12: Elem Math: Identifying Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems on identifying rectangles, squares, circles and triangles.
CK-12 Foundation
Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on classifying rectangles, squares, circles and triangles.
Khan Academy
Khan Academy: Name Shapes 2
Practice more challenging problems identifying circles, triangles, squares, and rectangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Geometry: Segments From Secants and Tangents
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to solve for missing segments created by a tangent line and a secant line intersecting outside a circle.
CK-12 Foundation
Ck 12: Elem Math: Counting the Number of Basic 2 D Shapes in a Set of Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on identifying various 2D shapes in a set of figures.
Mangahigh
Mangahigh: Shape: Quadrilaterals Inscribed in Circles
Determine the missing angle measures of quadrilaterals inscribed in circles.
Khan Academy
Khan Academy: Name Shapes 3
Practice identifying circles, triangles, squares, rectangles, rhombuses, trapezoids, and hexagons. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Practice telling if shapes are divided into 2 or 4 equal sections. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
In this exercise, students practice identifying equal parts of circles and rectangles. Students receive immediate feedback and have the opportunity to get hints, watch a tutorial video, and try questions repeatedly.
CK-12 Foundation
Ck 12: Geometry: Areas of Combined Figures Involving Circles
[Free Registration/Login may be required to access all resource tools.] In this lesson studednts find the areas of combined figures involving parts of circles. Students examine guided notes, review guided practice, watch instructional...
Khan Academy
Khan Academy: Challenge Problems: Inscribed Shapes
Solve three challenging problems that apply properties of inscribed shapes to find an arc length or a missing angle.
Khan Academy
Khan Academy: Challenge Problems: Circumscribing Shapes
Solve two challenging problems that apply properties of tangents to find the perimeter of a circumscribing shape.
Khan Academy
Khan Academy: Name Shapes 1
Practice identifying circles, triangles, squares, and rectangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.