CK-12 Foundation
Ck 12: Algebra: Comparison of Problem Solving Models
[Free Registration/Login may be required to access all resource tools.] Use the strategies of making a table and looking for a pattern to solve problems.
CK-12 Foundation
Ck 12: Algebra: Applications Using Linear Models
[Free Registration/Login may be required to access all resource tools.] In this lesson students use problem-solving strategies and a plan to solve real-world dilemmas. Students watch a video tutorial, explore guided notes and attempt...
CK-12 Foundation
Ck 12: Geometry: Proportionality Relationships Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide looks at proportionality theorems for triangles and parallel lines intersected by transversals.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Introduction to Problem Solving
A guide to solving problems involving numbers, rectangles, and angles. You'll learn how to employ Polya's four steps: understand the problem, devise a plan, carry out the plan, and look back.
CPALMS
Cpalms: Size It Up
[Free Registration/Login Required] This is a formative assessment task where students are asked to use geometric solids to model each of four tent shapes on a worksheet and use mathematical language to describe them. Samples of student...
CK-12 Foundation
Ck 12: Geometry: Basics of Geometry Study Guide
This study guide on Geometry covers some key vocabulary, drawing and labeling diagrams, describing geometric figures, and basic postulates for points, lines, planes, and intersections. It is available for download with free registration.
Other
European Journal of Operational Research: Two Dimensional Packing Problems
This article analyzes problems requiring to allocate a set of rectangular items to larger rectangular standardized units by minimizing the waste. It discusses mathematical models and surveys lower bounds, classical approximation...
Shodor Education Foundation
Shodor Interactivate: Fractured Pictures
Generate complicated geometric fractals by specifying starting polygon and scale factor.
Geometry Help
Geometry Help: Inscribed Shapes
Explains the basic concept of inscribed shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Squares
Explains the basic concept of a square with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Perimeter of Geometric Shapes
Explains the basic concept of the perimeter of geometric shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.7 Design Problems in Three Dimensions
Learn the mathematics behind modeling in three dimensions to maximize or minimize one aspect of the situation.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
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.
CK-12 Foundation
Ck 12: Interactive Geometry: 2.5 Geometry Software for Reflections
See how geometry software expresses geometric shape reflections.
Ministry of Education and Employment of Spain
Red Escolar: La Tradicion Kolam
In Spanish. Drawing the Kolam figures is an important part of the Tamil Nadu culture in southeastern India. But with their orderly and often highly symmetrical designs, which frequently group into families, Kolams are also expressive of...
National Council of Teachers of Mathematics
The Math Forum: Geometry Turned On
This Math Forum site contains many mathematical and geometric explanations and proofs of many different topics that have been done using a geometry software called Geometer's Sketchpad. The explanations are very detailed and clear;...
University of California
University of California: Geometry in Action
This page collects various areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional Euclidean geometry) meet some real-world applications.
Wolfram Research
Wolfram Math World: Coplanar
This MathWorld site gives the conditions for an object to be coplanar and a good definition of this term. Gives links to related pages.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Entrenamiento Para El Entretenimiento
In Spanish. This site is aimed at those who enjoy solving problems. You will find a collection of Arithmetic and Geometry problems which present some challenges and are interesting and fun.
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: Summing Differences
[Free Registration/Login Required] In this flipchart, students apply their understanding of geometric properties and relationships. Students use geometric properties and relationships to describe, compare, and draw two-dimensional shapes...
ClassFlow
Class Flow: Tangrams
[Free Registration/Login Required] In this flipchart, students use the interactive features in Activstudio to simulate translations and reflections using objects. Students develop and apply their understanding of geometric sense by...
Free Math Help
Free Math Help: How to Find the Limit
The resource explores basic terms used in geometry. The tutorial defines a point, line, and plane. Examples are included.