| internet connect | (if links malfunction, just type in the appropriate keyword at: go.hrw.com | |
| Homework Help Online | Keyword | MR4 HWHelp12 |
| Math Tools Online | Keyword | MR4 Tools |
| Glossary Online | Keyword | MR4 Glossary |
| Chapter Project Online | Keyword | MR4 PSProject12 |
| Chapter Opener Online | Keyword | MR4 Ch12 |
| CNN Student News | Keyword | MR4 CNN12 |
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