APES-Arvidson course guide 2025-2026

This guide was last modified: Time-stamp: <2026-04-21 Tue 09:18>

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 Unit Notices and Readings in FR41 Content/Activity
    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     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   H/O: Class Conduct and Lab Safety Agreements Establishing classroom norms, rules, and expectations of conduct.
  1 08/15/25 Fr   Bios due in class (Schoology) Review AP Science Practices; Student bios
      1 Signed CCLSAs due 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
  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   Terrestrial Biome Poster due [DG] Group Share/Update Biome Posters (all terrestrial biomes)
  3 08/26/25 Tu   Terrestrial Biome Quiz [DG], 1[3](43–50) Terrestrial Biome Quiz, 1.3 ERT-1 — Aquatic Biomes (Part 1)
  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   1[5](59–65), 1[6](66–72), 1[7](73–81) HOLIDAY: Labor 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
  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     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     HOLIDAY: Columbus Day
    10/14/25 Tu     HOLIDAY
    10/15/25 We     HOLIDAY
    10/16/25 Th     HOLIDAY
    10/17/25 Fr     HOLIDAY
    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   DG 4.1 Plate Tectonics due, 4[19](229–238) 4.1 ERT-2 — Plate Tectonics
  1 10/22/25 We   DG 4.2 Soil Formation & Erosion due, 4[20](239–252) 4.2 ERT-4 — Soil Formation and Erosion
  1 10/23/25 Th   DG 4.3 Soil Composition & Properties due 4[20](239–252) 4.3 ERT-4 — Soil Composition and Properties
  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 10/28/25 Tu   4[21](253–257) 4.6 ERT-1 — Watersheds (asynchronous class due to PSAT)
  2 10/29/25 We   PSAT-11th 4[22](258–270) 4.7 ENG-2 — Solar Radiation and Earth’s Seasons
  2 10/30/25 Th   PSAT-10th 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   MG 4.6 ENSO Project due ENSO project
  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     HOLIDAY: Thanksgiving
    11/25/25 Tu     HOLIDAY
    11/26/25 We     HOLIDAY
    11/27/25 Th     HOLIDAY
    11/28/25 Fr     Break
  6 12/01/25 Mo   5[28](332–341) TEACHER ABSENT 5.8 — EIN-7 Impacts of Overfishing
  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     HOLIDAY
    12/24/25 We     HOLIDAY
    12/25/25 Th     HOLIDAY
    12/26/25 Fr     HOLIDAY
    12/29/25 Mo     HOLIDAY
    12/30/25 Tu     HOLIDAY
    12/31/25 We     HOLIDAY
    01/01/26 Th     HOLIDAY
    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     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     HOLIDAY: Martin Luther King Day
  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 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 01/30/26 Fr   6[37](425–434) TEACHER ABSENT 6.4 — ENG-2 Distribution of Natural Energy Resources & 6.5 — ENG-7 Fossil Fuels
  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 02/13/26 Fr     PLD
  6 02/16/26 Mo     HOLIDAY: Presidents' Day
  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   Solar Home Project DUE here, 7[43](503–510) 7.2 — Photochemical Smog
  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 CO2 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 SAT School Day folder
  8 03/05/26 Th      
  8 03/06/26 Fr     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-Pt 1
T3e 9 03/13/26 Fr   8[47](549–563) 8.2 — Human Impacts on Ecosystems Pt 2,3
    03/16/26 Mo     Spring
    03/17/26 Tu     HOLIDAY
    03/18/26 We     HOLIDAY
    03/19/26 Th     HOLIDAY
    03/20/26 Fr     Break
T4b 1 03/23/26 Mo   8[47](549–563) 8.3 — Endocrine Disruptors
  1 03/24/26 Tu   8[48](563–575) 8.4 — Human Impacts on Wetlands and Mangroves
  1 03/25/26 We   8[48](563–575) 8.5 — Eutrophication
  1 03/26/26 Th   8[48](563–575) 8.6 — Thermal Pollution
  1 03/27/26 Fr   8[49](576–583) 8.7 — Persistent Organic Pollutants (POPs)
  2 03/30/26 Mo   8[49](576–583) 8.8 — Bioaccumulation and Biomagnification
  2 03/31/26 Tu   8[50](584–598) 8.9 — Solid Waste Disposal
  2 04/01/26 We   8[51](599–608) 8.10 — Waste Reduction Methods
  2 04/02/26 Th   8[47-49](549–608) Unit 8A Exam Review
  2 04/03/26 Fr     HOLIDAY: Good Friday
  3 04/06/26 Mo     Unit 8A Exam (date changed) (covers 8.1-8.8)
  3 04/07/26 Tu   8[52](609–617) 8.11 — Sewage Treatment (asynchronous class/STAAR English I late arrival)
  3 04/08/26 We   8[52](609–617) 8.11 — Sewage Treatment & 8.12 — Lethal Dose 50% (LD50) + Makeups/Retests
  3 04/09/26 Th   8[53](618–628) 8.12 — Lethal Dose 50% (LD50) & 8.13 — Dose Response Curve (asynchronous class/STAAR English II late arrival)
PR7e 3 04/10/26 Fr   8[54](629–644) 8.14 — Pollution and Human Health
  4 04/13/26 Mo   8[54](629–644) 8.15 — Pathogens and Infectious Diseases
      9   Unit 9: 19-20 days, 15-20% exam weighting Global Change
  4 04/14/26 Tu     Asynchronous class/STAAR US History late arrival
  4 04/15/26 We   9[55](661–666) 9.1 — Stratospheric Ozone Depletion & 9.2 — Reducing Ozone Depletion
  4 04/16/26 Th     Asynchronous class/STAAR Biology late arrival
  4 04/17/26 Fr   9[56](667–675) 9.3 — The Greenhouse Effect
  5 04/20/26 Mo     TEACHER ABSENT (NB: Unit 8B Exam date changed)
  5 04/21/26 Tu   9[57](676–688) 9.4 Increases in the Greenhouse Gases (asynchronous class/STAAR Algebra I late arrival)
  5 04/22/26 We     Unit 8B Exam (covers 8.9-8.15 includes 1 FRQ on LD50)
  5 04/23/26 Th   9[57](676–688) 9.5 — Global Climate Change
  5 04/24/26 Fr   9[58](689–694) 9.6 — Ocean Warming
  6 04/27/26 Mo   9[58](689–694) 9.7 — Ocean Acidification
  6 04/28/26 Tu   9[59](695–711) 9.8 — Invasive Species
  6 04/29/26 We   9[59](695–711) 9.9 — Endangered Species
  6 04/30/26 Th   9[59](695–711) 9.10 — Human Impacts on Biodiversity
PR8e 6 05/01/26 Fr     Begin APES Exam Review
  7 05/04/26 Mo      
  7 05/05/26 Tu     Unit 9 Exam (Date Tentative)
  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     HOLIDAY: Memorial Day
    05/26/26 Tu   Final Exams  
    05/27/26 We   Final Exams  
T4e   05/28/26 Th   Final Exams  
    05/29/26 Fr     TWD
    06/01/26 Mo      

This guide created using GNU Emacs with 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: 2026-04-21 Tue 09:18