## Sunday, January 27, 2013

### Problem 849: Special Right triangle, Catheti or legs ratio 1:3, 18.5 Degrees, Double angle

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 849.

## Saturday, January 26, 2013

### Problem 848: Special Right triangle, Catheti or legs ratio 1:2, 26.5 Degrees. Double angle

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 848.

## Wednesday, January 23, 2013

### Nexus 7 Guidebook for Android mobile technology platform 4.2 by Google - Mind map and News

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

## Sunday, January 13, 2013

### iPad Apps: Apollonius software, Feuerbach Point. Triangle, Incircle, Nine point circle, Tangent circles, Orthocenter, Midpoint

Interactive Geometry Software for iPad
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure to open the illustration.

### Seven Circles Theorem. Variants 1, 2, and 3. Step-by-step illustration

Interactive Illustration
Click the figure to see the interactive illustration

## Saturday, January 12, 2013

### iPad Apps: Pi Mind Map with the first 100 decimals digits.

Made with TypeDrawing and Wikiweb for iPad.

Click the figure below to open the illustration.

### Geometry Designer for iPad, Interactive Geometry Software IGS

Index

Click the figure below to open the index.

### iPad Apps: Geometry Designer Illustration: Circle of van Lamoen. Level: High School, College. Geometry Problem 847

Interactive Geometry Software
Level: Mathematics Education, High School, Honors Geometry, College.

The figure below was created using the Geometry Designer for iPad. .
Click the figure below to zoom.

## Friday, January 11, 2013

### iPad Apps: Geometry Designer Illustration: Four Circles Theorem with Dynamic Geometry

Interactive Geometry Software
Level: Mathematics Education, High School, Honors Geometry, College.

The figure below was created using the Geometry Designer for iPad. .
Click the figure below to zoom.

## Wednesday, January 9, 2013

### Geometry Art 831-840

Drawing
Level: Mathematics Education, K-12, High School, College.

Click the figure below to see the problem art.

## Sunday, January 6, 2013

### van Lamoen Circle: Triangle, Centroid, Six Circumcenters, Concyclic Points, Index

Index
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the index.

### Tracenpoche IGS: Triangle, Medians, Six Circumcenters Concyclic points

Geometry Problem
Using TracenPoche Interactive Geometry Software. Step-by-Step construction, Manipulation, and animation.
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the dynamic geometry of the circle of van Lamoen.

## Saturday, January 5, 2013

### Virtual Manipulatives for Geometry - Index

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the index.

## Friday, January 4, 2013

### Virtual Manipulatives for Geometry by NLVM, Grades 9-12 at USU - Interactive Mind map

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

### Virtual Manipulatives for Geometry by NLVM, Grades 6-8 at USU - Interactive Mind map

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

### Virtual Manipulatives for Geometry by NLVM, Grades 3-5 at USU - Interactive Mind map

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

### Virtual Manipulatives for Geometry by NLVM, Grades Pre-K-2 at USU - Interactive Mind map

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

### Virtual Manipulatives for Geometry by NLVM, Grades K-12 at USU - Interactive Mind map

Graphic organizers are visual representations of knowledge, concepts or ideas.
Click the figure below to view the Interactive Mind Map.

## Wednesday, January 2, 2013

### Problem 847: van Lamoen Circle, Triangle, Medians, Centroid, Six Circumcenters, Concyclic Points

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 847.

### Problem 846: Triangle, Medians, Centroid, Four Circumcenters, Concyclic Points, Cyclic Quadrilateral, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 846.

### Problem 845: Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 845.

### Problem 844: Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 844.

### Problem 843: Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Parallel, Congruence, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 843.

### Problem 842: Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 842.

### Problem 841: Triangle, Medians, Centroid, Circumcenters, Perpendicular, Congruence, Similarity

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 841.