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Geometry Connections

Dear Teachers:
Welcome to the new CPM Geometry course! We are incredibly excited that the new Geometry curriculum includes many lessons that make use of technology capabilities in the classroom. Through the use of dynamic geometry software (Geometers Sketchpad and Cabri Jr.) your students will see geometry through a dynamic environment that facilitates understanding, exploring, and conjecturing.

This website includes many files that are ready for your use in the classroom. These files are specifically designed for the lessons within this text. Below, you will find the following resources:
  • A table of technology files: The table lists all of the included technology files organized by lesson number. To access the file(s) for a given lesson, click on the link for the files that correspond to the desired lesson and your choice of Geometer's Sketchpad (either version 3 or version 4), or Cabri Jr.
  • A technology overview: This overview discusses the three options that you have for accessing dynamic geometry: Geometer's Sketchpad and Cabri Jr. You will also find this technology overview at the beginning of the teachers text.

As additional resources are created, they will be made available through this web site. We expect that you will have an exciting and successful year.


The CPM Team

Sketchpad v.3 Sketchpad v.4 Internet Tools CABRI Jr. Other
1.1.1: Quilts
1.1.4: Are you convinced?
1.2.2: Transformations
1.3.1: How can I classify this shape?
2.1.2: Tiling Parallelograms
2.1.4: Angles in a Triangle
2.2.2: Area of Triangles
2.3.2: Triangle Inequality
1 & 2
2.3.3: The Pythagorean Theorem
3.1.1: Pantograph
3.1.2: Stretching/
3.2.1: Similar Triangles
3.2.4: Conditions for Triangle Similarity
4.1.3: Slope Ratio
4.2.2: Roll and Win
Roll and Win (html)
5.3.4: SSA
6.2.4: Monty Hall Problem
Computer: here
6.2.5: Snowflake Activity
7.1.3: What's the shortest distance?
8.1.3: Exterior Angles of a Polygon
11.1.1: Duals of Polyhedra
11.2.2: Tangents & Arcs
11.2.3: Secant/Tangent
12.1.1: Parabola
12.1.4: Conic
12.1.5: Conic Equations
Math Tech Tools
Isometric light Grids
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Isometric dark Grids
large  medium  small

SmartBoard files
By Chapter
By Part  
Pt 1 / Pt 2 If you have difficulty opening the files, you may find that your browser renamed the file.

1. Check the name of the file.
Continue with these directions if the file name does not end in .notebook
2. Click on the file name. Wait a second or two and click the name once again.
3. You should now be able to rename the file with: filename.notebook
4. A message normally comes up asking if you really want to change the extension, click yes.
5. The file icon should be blue.
6. Your file should now boot up in SmartBoard software.
(Make sure that you have the SmartBoard software installed on your computer.
Your school gives you the code.)
7. If you still have problems contact Carol Cho at: cho@cpm.org
Your subject line should be: CPM SmartBoard Problem

* Promethean Interactive White Board users can also open SMART Board files using their Activinspire software.
You can download their software here.
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