Geometry Help
Geometry Help: Area of Geometric Shapes
Explains the basic concept of the area of geometric shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Khan Academy
Khan Academy: Drawing Polygons With Coordinates Challenge
More challenging problems involving drawing shapes on the coordinate plane.
Khan Academy
Khan Academy: Draw Lines of Symmetry and Symmetrical Figures
Practice drawing lines of symmetry and creating symmetrical figures.
PBS
Pbs Learning Media: Kid Vid: Scaling Up Rectangles
Watch a student think through a problem about how the area of a rectangle changes when both sides are increased by the same scale factor and use online tools to demonstrate understanding of concepts related to area and scale factors in...
PBS
Pbs Learning Media: Math + Arts: Jack & Hardy Hard Head
In this lesson, students create and solve problems related to scale and write and perform a scene to share their problems and solutions. Media resources and teacher materials are included.
Ministry of Education and Employment of Spain
Red Escolar: Jugando Con Sombras
In Spanish. Learn how to copy a figure using graph paper and also have fun playing with shadows.
National Council of Teachers of Mathematics
The Math Forum: Oblique Drawing
This Web site provides an explanation for what oblique drawings are. Compares oblique drawings to isometric drawings.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Learning Ratios & Proportions Through Scale Drawings
Website which strengthens the conceptual connection between scale drawings and ratios through an activity lesson plan.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Recortando Geometria
In Spanish. In this site you will find different activities involving geometric plane figures.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Despega Sin Despegar
In Spanish. In these activities you can develop the concept of trajectory. Try to trace the figures without lifting your pencil.
Sophia Learning
Sophia: Drawing Shapes & Angles: Lesson 2
This lesson will demonstrate how to draw a particular angle or a shape with particular characteristics.
Sophia Learning
Sophia: Scale and Similar Figures: Lesson 3
This lesson explains how similar figures are related to the concept of scale. It is 3 of 5 in the series titled "Scale and Similar Figures."
Sophia Learning
Sophia: Scale Factor and Volume of Similar Figures: Lesson 4
This lesson will discuss the relationship between scale factor and volume of similar figures. It is 4 of 4 in the series titled "Scale Factor and Volume of Similar Figures."
Sophia Learning
Sophia: Scale Factor and Area of Similar Figures: Lesson 3
This lesson will discuss the relationship between scale factor and area of similar figures. It is 3 of 5 in the series titled "Scale Factor and Area of Similar Figures."
Sophia Learning
Sophia: Similar Polygons and Their Perimeters: Lesson 1
This lesson presents the relationship between similar polygons and the ratio of their perimeters. It is 1 of 5 in the series titled "Similar Polygons and their Perimeters."
ClassFlow
Class Flow: Ratio and Proportion Geometry Review
[Free Registration/Login Required] This flipchart is a Jeopardy style review for Ratio and Proportion. Comes form the McDougal Littell Geometry book.
ClassFlow
Class Flow: Similar Shapes
[Free Registration/Login Required] In this flipchart, students use the drawing and interactive tools in Activstudio to apply geometric properties and relationships to describe, compare, and draw two-dimensional shapes and figures.
ClassFlow
Class Flow: Solving Proportions
[Free Registration/Login Required] This lesson introduces the cross product method for solving proportions. It also connects the mathematical content to real-world applications.
ClassFlow
Class Flow: Geometry Plane Figures
[Free Registration/Login Required] The teacher will use this lesson plan flipchart to review geometry plane figures.
ClassFlow
Class Flow: Geometry Polygons
[Free Registration/Login Required] This flipchart discusses plane figures and solid figures. The definitions and lesson sequence are based on Scott Foresman's Grade 4 Math textbook.
Math Is Fun
Math Is Fun: Similar
Students investigate when two shapes are similar. Definitions and examples are included.
National Council of Teachers of Mathematics
Nctm: Figure This: Fire Hydrant
Discover how the geometric shape of an object directly relates to its usefullness in this math challenge from the NCTM Math Challenges for Families collection. A one page activity that you can print or download.
Microsoft
Microsoft: Choosing an Appropriate Drawing Scale
Drawing objects using a scale. Information on how to choose the right size.
Other
Art Education: Drawing in One Point Perspective
A fascinating interactive site showing how to use lines in on-point perspective drawings.