| The Principle Approach - Developing a Course using the 4-R's | Written by Chris Duffy | Hits: 1337 |
| Teaching Elementary History-The Mighty Works of God | Written by Chris Duffy | Hits: 1310 |
| Techniques in Literary Analysis | Written by Chris Duffy | Hits: 1303 |
| Astronomy through the Ages | Written by Chris Duffy | Hits: 1275 |
| Studying the Bible as Literature | Written by Chris Duffy | Hits: 1235 |
| Finding the Principles and Chr. Hist. . . Setting Course Goals | Written by Chris Duffy | Hits: 1329 |
| Effective Classroom Government at Home or School | Written by Chris Duffy | Hits: 1313 |
| Writing: Both Process and Skill | Written by Chris Duffy | Hits: 1280 |
| Timeless Truths in the Iliad | Written by Chris Duffy | Hits: 1314 |
| Luther Burbank: The Genius Who Trained Plants | Written by Chris Duffy | Hits: 1350 |
| Training Young Men; Women to be Salt & Light | Written by Chris Duffy | Hits: 1289 |
| Ancient History - Teaching Guide | Written by Chris Duffy | Hits: 1261 |
| Middle History - Teaching Guide | Written by Chris Duffy | Hits: 1267 |
| Developing Teaching a Key Classic: Hans Brinker | Written by Chris Duffy | Hits: 1388 |
| Teaching Biblical Ideas and Reasoning | Written by Chris Duffy | Hits: 1301 |
| Teaching the Writings of A.A. Milne | Written by Chris Duffy | Hits: 1270 |
| Guyot Overview, Maps and Questions on CD | Written by Chris Duffy | Hits: 1284 |
| Mathematics from the Principle Approach | Written by Chris Duffy | Hits: 1270 |
| The Bronze Bow - Teacher's Guide CD | Written by Chris Duffy | Hits: 1299 |
| Principles of Leadership . . . Booker T. Washington | Written by Chris Duffy | Hits: 1305 |
| Abe Lincoln Grows Up -Teacher's Guide-CD | Written by Chris Duffy | Hits: 1393 |
| Significance of the American Christian Educator | Written by Chris Duffy | Hits: 1269 |
| Amos Fortune - Teacher's Guide | Written by Chris Duffy | Hits: 1262 |
| Presenting Leading Ideas in Daily Lessons | Written by Chris Duffy | Hits: 1289 |
| Illustrators: Literature's Illuminators | Written by Chris Duffy | Hits: 1303 |
| God's Sovereignty Over the Earth | Written by Chris Duffy | Hits: 1366 |
| Curr. Dev. and Teach. Methods for Science | Written by Chris Duffy | Hits: 1283 |
| How Can I Teach the Bible as Literature? | Written by Chris Duffy | Hits: 1328 |
| Cultivating a Heart for Learning | Written by Chris Duffy | Hits: 1350 |
| Teaching the Principle of Problem Solving MP3 | Written by Chris Duffy | Hits: 528 |
| American Christian Education | Written by Chris Duffy | Hits: 1262 |
| The Literature of Liberty | Written by Chris Duffy | Hits: 1311 |
| Using Charts to Record Research and Reasoning | Written by Chris Duffy | Hits: 1334 |
| Every Teacher is a Teacher of History | Written by Chris Duffy | Hits: 1352 |
| Using Literature to Reform Character: Little Women | Written by Chris Duffy | Hits: 1293 |
| Lit, Learn, and Sail Ash Breeze | Written by Chris Duffy | Hits: 1397 |
| Challenges & Blessings of PA | Written by Chris Duffy | Hits: 1385 |
| Home Education | Written by Chris Duffy | Hits: 1459 |
| The Principle Approach - Developing a Course Using the 4-R's | Written by Chris Duffy | Hits: 1395 |
| The Principle Approach - Developing a Course using the 4-R's | Written by Chris Duffy | Hits: 1317 |
| Developing and Teaching a Literary Classic | Written by Chris Duffy | Hits: 1321 |
| A Phil. of American Christian Education -- Booker T. Washington | Written by Chris Duffy | Hits: 1368 |
| The Life and Contributions of Laura Ingalls Wilder | Written by Chris Duffy | Hits: 1289 |
| Lit. that Teaches Less. in Life - Aesop's Fables for All Grades | Written by Chris Duffy | Hits: 1379 |
| Teaching the Principle of Problem Solving | Written by Chris Duffy | Hits: 1369 |
| Illustrators: Literature's Illuminators | Written by Chris Duffy | Hits: 1273 |
| Student Research! Scientists and Their Philosophies | Written by Chris Duffy | Hits: 1288 |
| Practical Tips from a Seasoned Homeschool Mother | Written by Chris Duffy | Hits: 1251 |
| Popping and Beyond -- Principle Approach Style | Written by Chris Duffy | Hits: 1336 |
| Purpose and Method for Teaching and Learning Historic Events | Written by Chris Duffy | Hits: 1190 |
| Treasuring the Literature Classics | Written by Chris Duffy | Hits: 1329 |
