Block Feed Only—Schedule is in the monthly ITV Update and the Updated Block Feed Summary found at www.itv.myetv.org.
Teacher's guides may be available online at ITV Searchable Database of Teacher's Guide or at Teacher's Guides Available Online.
Legend: NEW=New Resource REV=Revised Resource SL=Also Available in StreamlineSC [CC]=Closed Captioned
Change Series
LESSON No. and TITLE | CHAN | DAY | DATE | START | END |
| 1. Living Cycles | 305 | Fri. | Aug 31, 2007 | 10:00 am | 10:14 am |
| 305 | Fri. | Nov 02, 2007 | 12:00 pm | 12:14 pm | |
| 303 | Fri. | Dec 07, 2007 | 8:00 am | 8:14 am | |
| 303 | Wed. | Dec 19, 2007 | 8:00 am | 8:14 am | |
| 303 | Wed. | Jan 09, 2008 | 10:15 am | 10:29 am | |
| 303 | Wed. | Jan 30, 2008 | 8:30 am | 8:44 am | |
| 301 | Tue. | Feb 12, 2008 | 8:00 am | 8:14 am | |
| 304 | Tue. | Feb 26, 2008 | 8:00 am | 8:14 am | |
| 303 | Tue. | Apr 01, 2008 | 8:30 am | 8:44 am | |
| 301 | Thu. | Apr 17, 2008 | 9:30 am | 9:44 am | |
| 304 | Wed. | Apr 30, 2008 | 10:00 am | 10:14 am | |
| 303 | Wed. | May 14, 2008 | 8:30 am | 8:44 am | |
| 301 | Mon. | May 19, 2008 | 9:00 am | 9:14 am | |
| 2. Abiotic Cycles | 305 | Fri. | Aug 31, 2007 | 10:16 am | 10:30 am |
| 305 | Fri. | Nov 02, 2007 | 12:16 pm | 12:30 pm | |
| 303 | Fri. | Dec 07, 2007 | 8:16 am | 8:30 am | |
| 303 | Wed. | Dec 19, 2007 | 8:16 am | 8:30 am | |
| 303 | Wed. | Jan 09, 2008 | 10:31 am | 10:45 am | |
| 303 | Wed. | Jan 30, 2008 | 8:46 am | 9:00 am | |
| 301 | Tue. | Feb 12, 2008 | 8:16 am | 8:30 am | |
| 304 | Tue. | Feb 26, 2008 | 8:16 am | 8:30 am | |
| 303 | Tue. | Apr 01, 2008 | 8:46 am | 9:00 am | |
| 301 | Thu. | Apr 17, 2008 | 9:46 am | 10:00 am | |
| 304 | Wed. | Apr 30, 2008 | 10:16 am | 10:30 am | |
| 303 | Wed. | May 14, 2008 | 8:46 am | 9:00 am | |
| 301 | Mon. | May 19, 2008 | 9:16 am | 9:30 am | |
| 3. Biorhythms | 305 | Fri. | Aug 31, 2007 | 10:32 am | 10:46 am |
| 305 | Fri. | Nov 02, 2007 | 12:32 pm | 12:46 pm | |
| 303 | Fri. | Dec 07, 2007 | 8:32 am | 8:46 am | |
| 303 | Wed. | Dec 19, 2007 | 8:32 am | 8:46 am | |
| 303 | Wed. | Jan 09, 2008 | 10:47 am | 11:01 am | |
| 303 | Wed. | Jan 30, 2008 | 9:02 am | 9:16 am | |
| 301 | Tue. | Feb 12, 2008 | 8:32 am | 8:46 am | |
| 304 | Tue. | Feb 26, 2008 | 8:32 am | 8:46 am | |
| 303 | Tue. | Apr 01, 2008 | 9:02 am | 9:16 am | |
| 301 | Thu. | Apr 17, 2008 | 10:02 am | 10:16 am | |
| 304 | Wed. | Apr 30, 2008 | 10:32 am | 10:46 am | |
| 303 | Wed. | May 14, 2008 | 9:02 am | 9:16 am | |
| 301 | Mon. | May 19, 2008 | 9:32 am | 9:46 am | |
| 4. Succession | 305 | Fri. | Aug 31, 2007 | 10:48 am | 11:02 am |
| 305 | Fri. | Nov 02, 2007 | 12:48 pm | 1:02 pm | |
| 303 | Fri. | Dec 07, 2007 | 8:48 am | 9:02 am | |
| 303 | Wed. | Dec 19, 2007 | 8:48 am | 9:02 am | |
| 303 | Wed. | Jan 09, 2008 | 11:03 am | 11:17 am | |
| 303 | Wed. | Jan 30, 2008 | 9:18 am | 9:32 am | |
| 301 | Tue. | Feb 12, 2008 | 8:48 am | 9:02 am | |
| 304 | Tue. | Feb 26, 2008 | 8:48 am | 9:02 am | |
| 303 | Tue. | Apr 01, 2008 | 9:18 am | 9:32 am | |
| 301 | Thu. | Apr 17, 2008 | 10:18 am | 10:32 am | |
| 304 | Wed. | Apr 30, 2008 | 10:48 am | 11:02 am | |
| 303 | Wed. | May 14, 2008 | 9:18 am | 9:32 am | |
| 301 | Mon. | May 19, 2008 | 9:48 am | 10:02 am | |
| 5. Forests | 305 | Fri. | Aug 31, 2007 | 11:04 am | 11:18 am |
| 305 | Fri. | Nov 02, 2007 | 1:04 pm | 1:18 pm | |
| 303 | Fri. | Dec 07, 2007 | 9:04 am | 9:18 am | |
| 303 | Wed. | Dec 19, 2007 | 9:04 am | 9:18 am | |
| 303 | Wed. | Jan 09, 2008 | 11:19 am | 11:33 am | |
| 303 | Wed. | Jan 30, 2008 | 9:34 am | 9:48 am | |
| 301 | Tue. | Feb 12, 2008 | 9:04 am | 9:18 am | |
| 304 | Tue. | Feb 26, 2008 | 9:04 am | 9:18 am | |
| 303 | Tue. | Apr 01, 2008 | 9:34 am | 9:48 am | |
| 301 | Thu. | Apr 17, 2008 | 10:34 am | 10:48 am | |
| 304 | Wed. | Apr 30, 2008 | 11:04 am | 11:18 am | |
| 303 | Wed. | May 14, 2008 | 9:34 am | 9:48 am | |
| 301 | Mon. | May 19, 2008 | 10:04 am | 10:18 am | |
| 6. Bogs and Deserts | 305 | Fri. | Aug 31, 2007 | 11:20 am | 11:34 am |
| 305 | Fri. | Nov 02, 2007 | 1:20 pm | 1:34 pm | |
| 303 | Fri. | Dec 07, 2007 | 9:20 am | 9:34 am | |
| 303 | Wed. | Dec 19, 2007 | 9:20 am | 9:34 am | |
| 303 | Wed. | Jan 09, 2008 | 11:35 am | 11:49 am | |
| 303 | Wed. | Jan 30, 2008 | 9:50 am | 10:04 am | |
| 301 | Tue. | Feb 12, 2008 | 9:20 am | 9:34 am | |
| 304 | Tue. | Feb 26, 2008 | 9:20 am | 9:34 am | |
| 303 | Tue. | Apr 01, 2008 | 9:50 am | 10:04 am | |
| 301 | Thu. | Apr 17, 2008 | 10:50 am | 11:04 am | |
| 304 | Wed. | Apr 30, 2008 | 11:20 am | 11:34 am | |
| 303 | Wed. | May 14, 2008 | 9:50 am | 10:04 am | |
| 301 | Mon. | May 19, 2008 | 10:20 am | 10:34 am | |
| 7. Creeks and Oceans | 305 | Fri. | Aug 31, 2007 | 11:36 am | 11:50 am |
| 305 | Fri. | Nov 02, 2007 | 1:36 pm | 1:50 pm | |
| 303 | Fri. | Dec 07, 2007 | 9:36 am | 9:50 am | |
| 303 | Wed. | Dec 19, 2007 | 9:36 am | 9:50 am | |
| 303 | Wed. | Jan 09, 2008 | 11:51 am | 12:05 pm | |
| 303 | Wed. | Jan 30, 2008 | 10:06 am | 10:20 am | |
| 301 | Tue. | Feb 12, 2008 | 9:36 am | 9:50 am | |
| 304 | Tue. | Feb 26, 2008 | 9:36 am | 9:50 am | |
| 303 | Tue. | Apr 01, 2008 | 10:06 am | 10:20 am | |
| 301 | Thu. | Apr 17, 2008 | 11:06 am | 11:20 am | |
| 304 | Wed. | Apr 30, 2008 | 11:36 am | 11:50 am | |
| 303 | Wed. | May 14, 2008 | 10:06 am | 10:20 am | |
| 301 | Mon. | May 19, 2008 | 10:36 am | 10:50 am | |
| 8. Lakes and Streams | 305 | Fri. | Aug 31, 2007 | 11:52 am | 12:06 pm |
| 305 | Fri. | Nov 02, 2007 | 1:52 pm | 2:06 pm | |
| 303 | Fri. | Dec 07, 2007 | 9:51 am | 10:05 am | |
| 303 | Wed. | Dec 19, 2007 | 9:52 am | 10:06 am | |
| 303 | Wed. | Jan 09, 2008 | 12:07 pm | 12:21 pm | |
| 303 | Wed. | Jan 30, 2008 | 10:22 am | 10:36 am | |
| 301 | Tue. | Feb 12, 2008 | 9:52 am | 10:06 am | |
| 304 | Tue. | Feb 26, 2008 | 9:52 am | 10:06 am | |
| 303 | Tue. | Apr 01, 2008 | 10:22 am | 10:36 am | |
| 301 | Thu. | Apr 17, 2008 | 11:22 am | 11:36 am | |
| 304 | Wed. | Apr 30, 2008 | 11:52 am | 12:06 pm | |
| 303 | Wed. | May 14, 2008 | 10:22 am | 10:36 am | |
| 301 | Mon. | May 19, 2008 | 10:52 am | 11:06 am | |
| 9. Different but Alike | 305 | Fri. | Aug 31, 2007 | 12:08 pm | 12:22 pm |
| 305 | Fri. | Nov 02, 2007 | 2:08 pm | 2:22 pm | |
| 303 | Fri. | Dec 07, 2007 | 10:07 am | 10:21 am | |
| 303 | Wed. | Dec 19, 2007 | 10:09 am | 10:23 am | |
| 303 | Wed. | Jan 09, 2008 | 12:23 pm | 12:37 pm | |
| 303 | Wed. | Jan 30, 2008 | 10:38 am | 10:52 am | |
| 301 | Tue. | Feb 12, 2008 | 10:08 am | 10:22 am | |
| 304 | Tue. | Feb 26, 2008 | 10:08 am | 10:22 am | |
| 303 | Tue. | Apr 01, 2008 | 10:38 am | 10:52 am | |
| 301 | Thu. | Apr 17, 2008 | 11:38 am | 11:52 am | |
| 304 | Wed. | Apr 30, 2008 | 12:08 pm | 12:22 pm | |
| 303 | Wed. | May 14, 2008 | 10:38 am | 10:52 am | |
| 301 | Mon. | May 19, 2008 | 11:08 am | 11:22 am | |
| 10. Parasites | 305 | Fri. | Aug 31, 2007 | 12:24 pm | 12:38 pm |
| 305 | Fri. | Nov 02, 2007 | 2:24 pm | 2:38 pm | |
| 303 | Fri. | Dec 07, 2007 | 10:23 am | 10:37 am | |
| 303 | Wed. | Dec 19, 2007 | 10:25 am | 10:39 am | |
| 303 | Wed. | Jan 09, 2008 | 12:39 pm | 12:53 pm | |
| 303 | Wed. | Jan 30, 2008 | 10:54 am | 11:08 am | |
| 301 | Tue. | Feb 12, 2008 | 10:24 am | 10:38 am | |
| 304 | Tue. | Feb 26, 2008 | 10:24 am | 10:38 am | |
| 303 | Tue. | Apr 01, 2008 | 10:54 am | 11:08 am | |
| 301 | Thu. | Apr 17, 2008 | 11:54 am | 12:08 pm | |
| 304 | Wed. | Apr 30, 2008 | 12:24 pm | 12:38 pm | |
| 303 | Wed. | May 14, 2008 | 10:54 am | 11:08 am | |
| 301 | Mon. | May 19, 2008 | 11:24 am | 11:38 am | |
| 11. Colonies | 305 | Fri. | Aug 31, 2007 | 12:40 pm | 12:54 pm |
| 305 | Fri. | Nov 02, 2007 | 2:40 pm | 2:54 pm | |
| 303 | Fri. | Dec 07, 2007 | 10:39 am | 10:53 am | |
| 303 | Wed. | Dec 19, 2007 | 10:41 am | 10:55 am | |
| 303 | Wed. | Jan 09, 2008 | 12:55 pm | 1:09 pm | |
| 303 | Wed. | Jan 30, 2008 | 11:10 am | 11:24 am | |
| 301 | Tue. | Feb 12, 2008 | 10:40 am | 10:54 am | |
| 304 | Tue. | Feb 26, 2008 | 10:40 am | 10:54 am | |
| 303 | Tue. | Apr 01, 2008 | 11:10 am | 11:24 am | |
| 301 | Thu. | Apr 17, 2008 | 12:10 pm | 12:24 pm | |
| 304 | Wed. | Apr 30, 2008 | 12:40 pm | 12:54 pm | |
| 303 | Wed. | May 14, 2008 | 11:10 am | 11:24 am | |
| 301 | Mon. | May 19, 2008 | 11:40 am | 11:54 am | |
| 12. Competitor and Predator | 305 | Fri. | Aug 31, 2007 | 12:56 pm | 1:10 pm |
| 305 | Fri. | Nov 02, 2007 | 2:56 pm | 3:10 pm | |
| 303 | Fri. | Dec 07, 2007 | 10:55 am | 11:09 am | |
| 303 | Wed. | Dec 19, 2007 | 10:57 am | 11:11 am | |
| 303 | Wed. | Jan 09, 2008 | 1:11 pm | 1:25 pm | |
| 303 | Wed. | Jan 30, 2008 | 11:26 am | 11:40 am | |
| 301 | Tue. | Feb 12, 2008 | 10:56 am | 11:10 am | |
| 304 | Tue. | Feb 26, 2008 | 10:56 am | 11:10 am | |
| 303 | Tue. | Apr 01, 2008 | 11:26 am | 11:40 am | |
| 301 | Thu. | Apr 17, 2008 | 12:26 pm | 12:40 pm | |
| 304 | Wed. | Apr 30, 2008 | 12:56 pm | 1:10 pm | |
| 303 | Wed. | May 14, 2008 | 11:26 am | 11:40 am | |
| 301 | Mon. | May 19, 2008 | 11:56 am | 12:10 pm | |
| 13. Energy Origins | 305 | Fri. | Aug 31, 2007 | 1:12 pm | 1:26 pm |
| 305 | Fri. | Nov 02, 2007 | 3:12 pm | 3:26 pm | |
| 303 | Fri. | Dec 07, 2007 | 11:11 am | 11:25 am | |
| 303 | Wed. | Dec 19, 2007 | 11:13 am | 11:27 am | |
| 303 | Wed. | Jan 09, 2008 | 1:27 pm | 1:41 pm | |
| 303 | Wed. | Jan 30, 2008 | 11:42 am | 11:56 am | |
| 301 | Tue. | Feb 12, 2008 | 11:12 am | 11:26 am | |
| 304 | Tue. | Feb 26, 2008 | 11:12 am | 11:26 am | |
| 303 | Tue. | Apr 01, 2008 | 11:42 am | 11:56 am | |
| 301 | Thu. | Apr 17, 2008 | 12:42 pm | 12:56 pm | |
| 304 | Wed. | Apr 30, 2008 | 1:12 pm | 1:26 pm | |
| 303 | Wed. | May 14, 2008 | 11:42 am | 11:56 am | |
| 301 | Mon. | May 19, 2008 | 12:12 pm | 12:26 pm | |
| 14. Energy Use and Storage | 305 | Fri. | Aug 31, 2007 | 1:28 pm | 1:42 pm |
| 305 | Fri. | Nov 02, 2007 | 3:28 pm | 3:42 pm | |
| 303 | Fri. | Dec 07, 2007 | 11:27 am | 11:41 am | |
| 303 | Wed. | Dec 19, 2007 | 11:29 am | 11:43 am | |
| 303 | Wed. | Jan 09, 2008 | 1:43 pm | 1:57 pm | |
| 303 | Wed. | Jan 30, 2008 | 11:58 am | 12:12 pm | |
| 301 | Tue. | Feb 12, 2008 | 11:28 am | 11:42 am | |
| 304 | Tue. | Feb 26, 2008 | 11:28 am | 11:42 am | |
| 303 | Tue. | Apr 01, 2008 | 11:58 am | 12:12 pm | |
| 301 | Thu. | Apr 17, 2008 | 12:58 pm | 1:12 pm | |
| 304 | Wed. | Apr 30, 2008 | 1:28 pm | 1:42 pm | |
| 303 | Wed. | May 14, 2008 | 11:58 am | 12:12 pm | |
| 301 | Mon. | May 19, 2008 | 12:28 pm | 12:42 pm | |
| 15. Energy Distribution | 305 | Fri. | Aug 31, 2007 | 1:44 pm | 1:58 pm |
| 305 | Fri. | Nov 02, 2007 | 3:44 pm | 3:58 pm | |
| 303 | Fri. | Dec 07, 2007 | 11:43 am | 11:57 am | |
| 303 | Wed. | Dec 19, 2007 | 11:45 am | 11:59 am | |
| 303 | Wed. | Jan 09, 2008 | 1:59 pm | 2:13 pm | |
| 303 | Wed. | Jan 30, 2008 | 12:14 pm | 12:28 pm | |
| 301 | Tue. | Feb 12, 2008 | 11:44 am | 11:58 am | |
| 304 | Tue. | Feb 26, 2008 | 11:44 am | 11:58 am | |
| 303 | Tue. | Apr 01, 2008 | 12:14 pm | 12:28 pm | |
| 301 | Thu. | Apr 17, 2008 | 1:14 pm | 1:28 pm | |
| 304 | Wed. | Apr 30, 2008 | 1:44 pm | 1:58 pm | |
| 303 | Wed. | May 14, 2008 | 12:14 pm | 12:28 pm | |
| 301 | Mon. | May 19, 2008 | 12:44 pm | 12:58 pm |