APES-Arvidson course guide 2025-2026

This guide was last modified: Time-stamp: <2026-03-12 Thu 14:58>

header.small.png Course Plan 2025–2026
Dr. Rolf S. Arvidson
rolf.arvidson@fortbendisd.gov
room 443 Elkins High School
Link for this guide:
https://www.fortbendisd.com/cms/lib/TX01917858/Centricity/Domain/24333/guide.html

This course guide and assessment schedule will change throughout the year; the date last edited will appear at the top and bottom of this webpage. All students must be registered in AP Classroom; the join codes are available in the AP Classroom link of the Course Guide folder in the course’s Schoology site. All course materials are posted in Schoology as well (Instructional Content folder), organized by term/week/date.

The date of major course grades (exams, projects due) appear in red.

The AP Environmental Science Exam (administered by The College Board) is held Friday May 15, 2026 at 8:00 am.

How to use this guide:

PR Wk Date CED Unit Readings in FR41 Content/Activity Assignments Due  
    07/28/25 Mo          
    07/29/25 Tu          
    07/30/25 We          
    07/31/25 Th PLD          
    08/01/25 Fr PLD          
    08/04/25 Mo TWD          
    08/05/25 Tu PLD          
    08/06/25 We PLD          
    08/07/25 Th PLD          
    08/08/25 Fr PLD          
    08/11/25 Mo TPD          
      0   Unit 0: What is Environmental Science?    
T1b 1 08/12/25 Tu FDoS     Introductions and preliminary administrative stuff: create CB accounts, join class in AP Classroom, textbook signouts    
  1 08/13/25 We     Icebreaker and student introductions    
  1 08/14/25 Th     Establishing classroom norms, rules, and expectations of conduct. H/O: Class Conduct and Lab Safety Agreements (student and parent signatures)  
  1 08/15/25 Fr     Review AP Science Practices; Student bios Bios due in class (Schoology)  
      1   Unit 1: 14-15 days, 6-8% exam weighting The Living World: Ecosystems    
  2 08/18/25 Mo   1[1](16–28) 1.1 ERT-1 — Introduction to Ecosystems Signed CCLSAs due  
  2 08/19/25 Tu   1[2](29–42) 1.2 ERT-1 — Terrestrial Biomes (Part 1)    
  2 08/20/25 We     1.2 ERT-1 - Terrestrial Biomes (Part 2)    
  2 08/21/25 Th     Terrestrial Biomes/Biome Interactive Assignment    
  2 08/22/25 Fr     Terrestrial Biome Poster (1 terrestrial biome only) Assignment [DG due Monday]    
  3 08/25/25 Mo     Group Share/Update Biome Posters (all terrestrial biomes) Terrestrial Biome Poster due [DG]  
  3 08/26/25 Tu   1[3](43–50) Terrestrial Biome Quiz, 1.3 ERT-1 — Aquatic Biomes (Part 1) Terrestrial Biome Quiz [DG]  
  3 08/27/25 We   1[3](43–50) 1.3 ERT-1 — Aquatic Biomes (Part 2)    
  3 08/28/25 Th   1[4](51–58) 1.4 ERT-2 — The Carbon Cycle    
  3 08/29/25 Fr   1[4](51–58), 1[5](59–65) 1.5 ERT-2 — The Nitrogen Cycle, 1.6 ERT-2 — The Phosphorus Cycle    
  4 09/01/25 Mo HOL Labor   1[5](59–65), 1[6](66–72), 1[7](73–81) 1.7 ERT-2 — The Hydrologic (Water) Cycle, 1.8 ENG-1 — Primary Productivity, 1.9 ENG-1 — Trophic Levels, 1.10 ENG-6 — Energy Flow and the 10% Rule, 1.11 ENG-2 — Food Chains and Food Webs Personal Progress Check 1  
  4 09/02/25 Tu     Unit 1 review    
  4 09/03/25 We     Unit 1 exam    
  4 09/04/25 Th          
  4 09/05/25 Fr     1.8 ERT-2 - Primary Productivity    
  5 09/08/25 Mo     1.11 ERT-2 - Food Chains and Food Webs (The Wolves of Yellowstone)    
      2   1.10 ERT-2 - Energy Flow and the 10% Rule    
  5 09/09/25 Tu     Unit 2: 11-12 days, 6-8% exam weighting The Living World: Biodiversity    
  5 09/10/25 We   2[8](97–105) 2.1 ERT-1 — Introduction to Biodiversity    
  5 09/12/25 Fr   2[9](105–112) 2.2 ERT-1 — Ecosystem Services Presentations / 2.3 ERT-1 — Island Biogeography, Island Biogeography lab    
  5 09/11/25 Th   2[10](112-121) 2.2 ERT-1 — Ecosystem Services    
  6 09/15/25 Mo   2[14](150–161) 2.7 ERT-5 — Ecological Succession    
  6 09/16/25 Tu   2[11](122–128) Unit 2 Quiz (online, AP Classroom) / 2.4 ERT-3 — Ecological Tolerance    
  6 09/17/25 We   2[12](129–137), 2[13](138–149), 2[8–14](162–171) 2.5 ERT-5 — Natural Disruptions to Ecosystems, 2.6 ERT-5 — Adaptations, Unit 2 Review    
  6 09/18/25 Th     Unit 2 Exam    
  6 09/19/25 Fr PR2   Review/Make-up/Finish Ecosystem Services Presentation voting    
      3   Unit 3: 12–13 days, 10–15% exam weighting Populations    
  7 09/22/25 Mo   3[15](175–180) 3.1 ERT-1 — Generalist and Specialist Species    
  7 09/23/25 Tu   3[15](175–180) 3.2 ERT-5 — K-Selected and r-Selected Species    
  7 09/24/25 We   3[15](175–180) 3.3 ERT-5 — Survivorship Curves    
  7 09/25/25 Th   3[16](181–187) 3.4 ERT-5 — Carrying Capacity    
  7 09/26/25 Fr PLD          
  8 09/29/25 Mo   3[16](181–187) 3.5 ERT-6 — Population Growth and Resource Availability    
  8 09/30/25 Tu   3[17](190–203) 3.6 EIN-5 — Age Structure Diagrams    
  8 10/01/25 We   3[17](190–203) 3.7 EIN-5 — Total Fertility Rate    
  8 10/02/25 Th   3[18](204–215) 3.8 EIN-7 — Human Population Dynamics    
  8 10/03/25 Fr   3[18](204–215) 3.9 EIN-1 — Demographic Transition    
  9 10/06/25 Mo   3[15–18](216–225) Unit 3 Review    
  9 10/07/25 Tu     Unit 3 Exam    
  9 10/08/25 We     Make-up / Retesting    
  9 10/09/25 Th          
T1e 9 10/10/25 Fr          
    10/13/25 Mo HOL Columbus          
    10/14/25 Tu HOL          
    10/15/25 We HOL          
    10/16/25 Th HOL          
    10/17/25 Fr HOL          
    10/20/25 Mo TPD          
      4   Unit 4: 11-12 days, 10-15% exam weighting Earth Systems and Resources    
T2b 1 10/21/25 Tu   4[19](229–238) 4.1 ERT-2 — Plate Tectonics DG 4.1 Plate Tectonics due  
  1 10/22/25 We   4[20](239–252) 4.2 ERT-4 — Soil Formation and Erosion DG 4.2 Soil Formation & Erosion due  
  1 10/23/25 Th   4[20](239–252) 4.3 ERT-4 — Soil Composition and Properties DG 4.3 Soil Composition & Properties due  
  1 10/24/25 Fr     Soil Lab    
  2 10/27/25 Mo   4[22](258–270) 4.4 ERT-2 — Earth’s Atmosphere and 4.5 ERT-2 — Global Wind Patterns    
  2 PSAT-11th 10/28/25 Tu   4[21](253–257) 4.6 ERT-1 — Watersheds (asynchronous class due to PSAT)    
  2 10/29/25 We   4[22](258–270) 4.7 ENG-2 — Solar Radiation and Earth’s Seasons    
  2 PSAT-10th 10/30/25 Th   4[23](271–277) 4.8 ENG-2 — Earth’s Geography and Climate (asynchronous class due to PSAT)    
  2 10/31/25 Fr   4[23](271–277) 4.9 ENG-7 — El Niño and La Niña + ENSO project TEACHER ABSENT    
  3 11/03/25 Mo   4[19–23](278–291) ENSO project and Unit 4 mock exam    
  3 11/04/25 Tu     Unit 4 Exam    
  3 11/05/25 We     ENSO project    
  3 11/06/25 Th     ENSO project MG 4.6 ENSO Project due  
  3 11/07/25 Fr     PR3 grades due TEACHER ABSENT    
      5   Unit 5: 18-19 days, 10-15% exam weighting Land and Water Use    
  4 11/10/25 Mo          
  4 11/11/25 Tu          
  4 11/12/25 We   5[24](295–305) 5.1 — EIN-1 The Tragedy of the Commons    
  4 11/13/25 Th     Tragedy of the Commons - Discussion    
  4 11/14/25 Fr   5[24](295–305) 5.2 — EIN-1 Clearcutting    
  5 11/17/25 Mo   5[25](306–315) 5.3 — EIN-3 The Green Revolution    
  5 11/18/25 Tu   5[26](316–321) 5.4 — EIN-1 Impacts of Agricultural Practices    
  5 11/19/25 We   5[27](322–331) 5.5 — EIN-7 Irrigation Methods    
  5 11/20/25 Th   5[27](322–331) 5.6 — EIN-7 Pest Control Methods    
  5 11/21/25 Fr   5[28](332–341) 5.7 — EIN-5 Meat Production Methods    
    11/24/25 Mo HOL Thanksgiving          
    11/25/25 Tu HOL          
    11/26/25 We HOL          
    11/27/25 Th HOL          
    11/28/25 Fr Break          
  6 TEACHER ABSENT 12/01/25 Mo   5[28](332–341) 5.8 — EIN-7 Impacts of Overfishing TEACHER ABSENT    
  6 12/02/25 Tu   5[29](342–348) 5.9 — EIN-7 Impacts of Mining    
  6 12/03/25 We   5[30](349–355) 5.10 — EIN-7 Impacts of Urbanization    
  6 12/04/25 Th     Unit 5A review    
PR4e 6 12/05/25 Fr     Unit 5A review    
  7 12/08/25 Mo     Unit 5A review    
  7 12/09/25 Tu     Unit 5A Exam    
  7 12/10/25 We          
  7 12/11/25 Th          
  7 12/12/25 Fr          
  8 12/15/25 Mo          
  8 12/16/25 Tu Sem Exams     p6 12:50-02:50    
  8 12/17/25 We Sem Exams     p4 09:36-11:36    
  8 12/18/25 Th Sem Exams     p3 07:30-9:30; p5 09:36-11:40    
T2e 8 12/19/25 Fr Sem Exams     p1 07:30-9:30; p7 09:36-11:40    
    12/22/25 Mo Winter          
    12/23/25 Tu HOL          
    12/24/25 We HOL          
    12/25/25 Th HOL          
    12/26/25 Fr HOL          
    12/29/25 Mo HOL          
    12/30/25 Tu HOL          
    12/31/25 We HOL          
    01/01/26 Th HOL          
    01/02/26 Fr Break          
    01/05/26 Mo TWD          
    01/06/26 Tu PLD          
    01/07/26 We TPD          
T3b 0 01/08/26 Th FDoS     Welcome Back, Review of Class Procedures, Norms, S2 Plan    
  0 01/09/26 Fr     Class Discussion and Unit 5 Review Assignment    
  1 01/12/26 Mo   5[30](349–355) 5.13 — STB-4 Methods to Reduce Urban Runoff    
  1 01/13/26 Tu   5[31](356–360) 5.11 — EIN-5 Ecological Footprints    
  1 01/14/26 We   5[32](361–369) 5.12 — STB-5 Introduction to Sustainability    
  1 01/15/26 Th   5[33](370–378) 5.14 — STB-7 Integrated Pest Management    
  1 01/16/26 Fr   5[33](370–378) 5.15 — STB-7 Sustainable Agriculture    
  2 01/19/26 Mo HOL MLK          
  2 01/20/26 Tu   5[34](379–387) 5.16 — STB-7 Aquaculture & 5.17 — STB-7 Sustainable Forestry    
  2 01/21/26 We     Unit 5B Review    
  2 01/22/26 Th     Unit 5B Exam    
  2 01/23/26 Fr     Exam triage    
      6   Unit 6: 16-17 days, 10-15% exam weighting Energy Resources and Consumption    
  3 SNOW DAY 01/26/26 Mo     SNOW DAY    
  3 01/27/26 Tu   6[35](401–411) 6.1 — ENG-1 Renewable and Nonrenewable Resources    
PR5e 3 01/28/26 We   6[36](412–424) 6.2 — ENG-6 Global Energy Consumption    
  3 01/29/26 Th   6[37](425–434) 6.3 — ENG-1 Fuel Types and Uses    
  3 TEACHER ABSENT 01/30/26 Fr   6[37](425–434) 6.4 — ENG-2 Distribution of Natural Energy Resources & 6.5 — ENG-7 Fossil Fuels TEACHER ABSENT    
  4 02/02/26 Mo   6[38](435–444) 6.6 — ENG-2 Nuclear Power    
  4 02/03/26 Tu   6[39](445–458) 6.7 — ENG-7 Energy from Biomass    
  4 02/04/26 We   6[39](445–458) 6.8 — ENG-5 Solar Energy    
  4 02/05/26 Th   6[39](445–458) 6.9 — ENG-7 Hydroelectric Power    
  4 02/06/26 Fr   6[40](459–465) 6.10 — ENG-1 Geothermal Energy    
  5 02/09/26 Mo   6[40](459–465) 6.11 — ENG-1 Hydrogen Fuel Cell    
  5 02/10/26 Tu   6[41](466–479) 6.12 — ENG-7 Wind Energy    
  5 02/11/26 We   6[41](466–479) 6.13 — ENG-6 Energy Conservation    
  5 02/12/26 Th   6[35–41](480–491) Unit 6 review / mock test    
  5 PLD/NO CLASSES 02/13/26 Fr          
  6 02/16/26 Mo HOL Presidents’          
  6 02/17/26 Tu     Unit 6 Exam    
      7   Unit 7: 11-12 days, 7-10% exam weighting Atmospheric Pollution    
  6 02/18/26 We   7[42](495–502) 7.1 — Introduction to Air Pollution    
PR6e 6 02/19/26 Th     Catch-up Day    
  6 02/20/26 Fr   7[43](503–510) 7.2 — Photochemical Smog Solar Home Project DUE here; NB: late submissions suffer grade reductions of 25 per cent per day  
  7 02/23/26 Mo   7[43](503–510) 7.3 — Thermal Inversion    
  7 02/24/26 Tu   7[43](503–510) 7.4 — Atmospheric CO\(_{2}\) and Particulates    
  7 02/25/26 We   7[44](511–522) 7.5 — Indoor Air Pollutants    
  7 02/26/26 Th   7[45](523–529) 7.6 — Reduction of Air Pollutants    
  7 02/27/26 Fr     7.6 — Reduction of Air Pollutants - FRQ check    
  8 03/02/26 Mo   7[46](529–536) 7.7 — Acid Rain    
  8 03/03/26 Tu   7[46](529–536) 7.8 — Noise Pollution    
  8 03/04/26 We SAT Testing   SAT SAT School Day folder    
  8 03/05/26 Th          
  8 03/06/26 Fr TPD   TPD      
  9 03/09/26 Mo     Unit 7 Review    
  9 03/10/26 Tu   7[42–46](537–545) Unit 7 Exam    
      8   Unit 8: 19-20 days, 7-10% exam weighting Aquatic and Terrestrial Pollution    
  9 03/11/26 We   8[47](549–563) 8.1 — Sources of Pollution    
  9 03/12/26 Th   8[47](549–563) 8.2 — Human Impacts on Ecosystems    
T3e 9 03/13/26 Fr   8[47](549–563), 8[48](563–575) 8.3 — Endocrine Disruptors & 8.4 — Human Impacts on Wetlands and Mangroves    
    03/16/26 Mo Spring          
    03/17/26 Tu HOL          
    03/18/26 We HOL          
    03/19/26 Th HOL          
    03/20/26 Fr Break          
T4b 1 03/23/26 Mo   8[48](563–575) 8.5 — Eutrophication    
  1 03/24/26 Tu   8[48](563–575) 8.6 — Thermal Pollution    
  1 03/25/26 We   8[49](576–583) 8.7 — Persistent Organic Pollutants (POPs)    
  1 03/26/26 Th   8[49](576–583) 8.8 — Bioaccumulation and Biomagnification    
  1 03/27/26 Fr   8[50](584–598) 8.9 — Solid Waste Disposal    
  2 03/30/26 Mo   8[51](599–608) 8.10 — Waste Reduction Methods    
  2 03/31/26 Tu   8[52](609–617) 8.11 — Sewage Treatment    
  2 04/01/26 We   8[53](618–628) 8.12 — Lethal Dose 50% (LD50) & 8.13 — Dose Response Curve    
  2 04/02/26 Th   8[54](629–644) 8.14 — Pollution and Human Health    
  2 04/03/26 Fr HOL Good Friday          
  3 04/06/26 Mo   8[54](629–644) 8.15 — Pathogens and Infectious Diseases    
  3 04/07/26 Tu     Unit 8 Exam    
  3 04/08/26 We          
  3 04/09/26 Th          
PR7e 3 04/10/26 Fr          
      9   Unit 9: 19-20 days, 15-20% exam weighting Global Change    
  4 04/13/26 Mo   9[55](661–666) 9.1 — Stratospheric Ozone Depletion    
  4 04/14/26 Tu   9[55](661–666) 9.2 — Reducing Ozone Depletion    
  4 04/15/26 We   9[56](667–675) 9.3 — The Greenhouse Effect    
  4 04/16/26 Th   9[57](676–688) 9.4 — Increases in the Greenhouse Gase    
  4 04/17/26 Fr   9[57](676–688) 9.5 — Global Climate Change    
  5 04/20/26 Mo   9[58](689–694) 9.6 — Ocean Warming    
  5 04/21/26 Tu   9[58](689–694) 9.7 — Ocean Acidification    
  5 04/22/26 We   9[59](695–711) 9.8 — Invasive Species    
  5 04/23/26 Th   9[59](695–711) 9.9 — Endangered Species    
  5 04/24/26 Fr   9[59](695–711) 9.10 — Human Impacts on Biodiversity    
  6 04/27/26 Mo   9[55–59](712–723) Unit 9 Review    
  6 04/28/26 Tu     Unit 9 Exam    
  6 04/29/26 We          
  6 04/30/26 Th          
PR8e 6 05/01/26 Fr          
  7 05/04/26 Mo     Begin APES Exam Review    
  7 05/05/26 Tu          
  7 05/06/26 We          
  7 05/07/26 Th          
  7 05/08/26 Fr          
  8 05/11/26 Mo          
  8 05/12/26 Tu          
  8 05/13/26 We          
  8 05/14/26 Th          
  8 05/15/26 Fr     AP Environmental Science Exam (8:00AM)    
  9 05/18/26 Mo          
  9 05/19/26 Tu          
  9 05/20/26 We          
  9 05/21/26 Th          
  9 05/22/26 Fr          
    05/25/26 Mo HOL Memorial          
    05/26/26 Tu Exams          
    05/27/26 We Exams          
T4e   05/28/26 Th Exams          
    05/29/26 Fr TWD          
    06/01/26 Mo          

This guide created by Emacs in org-mode.

Footnotes:

1

Readings refers to Environmental Science for the AP Course (4th ed.) by Friedland & Relyea, given as Unit[Module(s)](pages), Unit[Module(s)](pages), etc. Copies of this hardcopy text may be signed out by each student. FBISD's online version is available via Clever + Achieve.

Created: 2026-03-12 Thu 15:04