Whiteboard
ClassFlow

Class Flow: Solid and Plane Figures

For Teachers 3rd - 5th Standards
[Free Registration/Login Required] Students will learn the 6 solid figures and characteristics, including face, edge, and vertices. Students will learn the plane figures when looking at the solid figures. Students will then take a 10...
Unit Plan
PBS

Pbs: Geometry and Classification of 2 D Figures: Bianca Busts a Move

For Students 3rd - 5th
In this video from Cyberchase, Bianca breaks her friend's tabletop when she's practicing dance moves in his living room. She uses measurement and geometry to get a new piece of wood that will fit the table exactly. The accompanying...
Unit Plan
Cuemath

Cuemath: Coordinate Geometry

For Students 9th - 10th Standards
A comprehensive guide for learning all about Coordinate geometry with definitions, the coordinate plane, formulas, equation of a line, related topics, solved examples, and practice questions.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Math Challenges for Families

For Students 2nd - 8th
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Unit Plan
Cuemath

Cuemath: Euclidean Geometry

For Students 9th - 10th Standards
Explore the world of Euclidean geometry by understanding euclidean and non-euclidean geometry, the postulates and axioms, and how to apply them while solving problems. Check-out the solved examples for better understanding and try your...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Translation, Rotations, and Reflections

For Students 7th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] Translate, rotate, and reflect figures using coordinate notation and graphing in the coordinate plane.
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Mr. Martini's Classroom

Mr. Martini's Classroom: Classifying Polygons and Finding Perimeters

For Students 3rd - 8th Standards
Assess learning of polygons and perimeters with this interactive multiple choice practice and quiz activity. Click the question mark for hints.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Different 2 D Shapes Within Complex Composite Figures

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on counting two dimensional shapes in a complex composite figure.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Different 2 D Shapes Within Simple Composite Figures

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to dientify various two dimensional shapes within a composite figure.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining Unknown Angles in Composite Figures

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and take an assessment on finding missing angles in a polygon.
Lesson Plan
Khan Academy

Khan: Lesson 16: Part 2 Coordinate Geometry; Trigo and Radians; Complex Numbers

For Teachers 9th - 10th Standards
2 OF 2 FOR ADDITIONAL TOPICS IN MATH. Learners will use the coordinate plane and equations of lines and circles to describe figures; create the equation of a circle given the figure or use the structure of a given equation to determine a...
Activity
Texas Instruments

Texas Instruments: Rotations in the Plane

For Teachers 9th - 10th Standards
In this activity, students will explore the properties of rotations and the relationships between the original and image figures.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting the Number of Basic 2 D Shapes in a Composite Figure

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on counting basic two dimensional shapes in a composite figure.
Lesson Plan
Alabama Learning Exchange

Alex: Geometry City

For Teachers 6th - 8th Standards
This lesson plan reviews transformations in the coordinate plane while mimicking real-world planning skills. It gives an assessment and ideas for remediation, extention as well as ways to manage behavior problems and reluctant learners.
Unit Plan
Integrated Publishing

Plane Figures

For Students 9th - 10th Standards
This site describes lines and angles "as found in various plane (flat) geometric figures.".
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Khan Academy

Khan Academy: Area and Perimeter on the Coordinate Plane

For Students 9th - 10th Standards
Find the area or perimeter of shapes like triangles, rectangles, parallelograms, and hexagons on the coordinate plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Shapes on the Coordinate Plane

For Students 3rd - 5th Standards
In this exercise, students practice identifying shapes on the coordinate plane. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.9 Composite Shapes

For Students 9th - 10th Standards
Learn how to manipulate and measure composite shapes.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions

For Students 9th - 10th Standards
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.6 Area or Perimeter of Triangles/ Quadrilaterals

For Students 9th - 10th Standards
Explore finding and measuring perimeter of figures.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 7.8 Triangles in Applied Problems

For Students 9th - 10th Standards
Explore some problems you can solve with your knowledge of triangles and trigonometry.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Vertices and Sides in Various Shapes

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students practice counting sides and vertices in various two dimensional shapes.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of Regular Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to calculate the area and perimeter of regular polygons. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Segments From Secants and Tangents

For Students 9th - 10th
[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.