For teachers

How to assign it

• Stable links. Each lesson, notes page, unit sheet and free-response question has a permanent address, such as levlprep.com/environmental-science/notes/<topic>.html. Links do not expire and need no account.
• Question sets. practice.html?topic=<topic> opens practice on one topic, practice.html?unit=unit-1 on a whole unit. Students get feedback and an explanation for every option. The practice page can also print a set as a worksheet.
• Free-response questions. Each has its own page with the prompt, the data and a printable answer sheet with lined space. Students write, then reveal the rubric and score themselves point by point. Nothing is graded by AI.
• Printing. Each lesson, notes page, unit sheet and free-response question has a Print button. A lesson prints all its parts in one run; a free-response question prints with lined answer space, and its rubric can print on a separate page.
• Google Classroom. The "Share to Google Classroom" button on each of those pages posts the link to your class.

No login for students

Students open a link and start. They need no account, and nothing they do leaves their device unless they choose to sign in. Progress, answers and scores are stored in their own browser, and typed free-response answers stay on the device they were written on.

Privacy, in short: no ads, no cookies, no tracking across other sites, and no new personal data collected from students. The site uses cookieless analytics and sends a short report when a page breaks. Details are on the privacy page.

Access for teachers and classes

Every notes page, the glossary and the unit sheets are free. Teachers can ask for free access to the rest of the course: email [email protected] from your school address. Ask about discounts for classes at the same address.

Free-response questions

• Phosphate, algae and dissolved oxygen in pond-water tanks Q1: Design an investigation, 10 points
• Phosphate and productivity in pond water Q1: Design an investigation, 10 points
• Soil texture and erosion on a test slope Q1: Design an investigation, 10 points
• Design an investigation of an agricultural practice and soil quality Q1: Design an investigation, 10 points
• Age structure and survival in Countries P and Q Q2: Analyze and interpret quantitative data, 10 points
• Pacific sea surface temperature, trade winds and rainfall Q2: Analyze and interpret quantitative data, 10 points
• Energy use per person in two countries, 1990 to 2020 Q2: Analyze and interpret quantitative data, 10 points
• Carbon dioxide, temperature and seawater pH at an ocean station Q2: Analyze and interpret quantitative data, 10 points
• Ozone and nitrogen dioxide through a summer day Q2: Analyze and interpret quantitative data, 10 points
• A family cuts its energy use: refrigerator and furnace Q3: Analyze an environmental problem with calculations, 10 points
• Energy flow in a grassland reserve Q3: Analyze an environmental problem with calculations, 10 points
• Population growth in Country V Q3: Analyze an environmental problem with calculations, 10 points
• Irrigation: water use per area, efficiency and cost Q3: Analyze an environmental problem with calculations, 10 points
• A new pesticide: toxicity and how long it lasts Q3: Analyze an environmental problem with calculations, 10 points

All free-response practice

Alignment with the course framework

The units and topics follow the order of the course framework, mapped to our lessons. Titles and explanations are in our own words; nothing reproduces the framework's text. The course is in Beta: it has not yet been reviewed by an AP® Environmental Science teacher.

Skills

Each math topic sits right before the framework topic that first needs it.