Can You Use a Calculator on the APES Test? Policy & Guide
A quick and simple guide to the official calculator policy for the AP® Environmental Science exam.
APES Calculator Policy Checker
Confirm the exam to see the official calculator policy.
What is the APES Calculator Policy?
The short answer is yes, you can use a calculator on the APES test. The College Board permits the use of calculators on both the multiple-choice and the free-response sections of the AP Environmental Science exam. This policy acknowledges that while the exam is not math-intensive in the way a calculus exam is, there are calculations required where a calculator can save time and improve accuracy.
However, not all calculators are allowed, and you don’t necessarily need the most advanced model. The key is to use a calculator you are familiar with and that meets the College Board’s guidelines.
Allowed vs. Prohibited Calculators
The College Board has specific rules about what makes a calculator permissible. The main goal is to prevent any device that could provide an unfair advantage, such as those with internet access or communication capabilities.
| Calculator Type / Feature | Allowed? | Common Examples |
|---|---|---|
| Four-Function Calculator | Yes | Basic calculators with +, -, ×, ÷, √ |
| Scientific Calculator | Yes | TI-30X, Casio fx-115ES |
| Graphing Calculator | Yes | TI-84 Plus, Casio fx-9750GII |
| Calculator Memory | Yes | Memory does not need to be cleared. |
| QWERTY Keyboard | No | TI-92 Plus, Casio ClassPad |
| Internet/Wireless Access | No | Smartphones, smartwatches, laptops |
| Stylus or Pen-Input | No | HP Prime, some Casio models |
The APES Formula and Math Explanation
The APES exam doesn’t provide a formula sheet, meaning you need to memorize a few key formulas. The math itself is usually algebra-based and not overly complex. The challenge often lies in setting up the problem correctly and working with units. A calculator is most helpful for the basic arithmetic involved.
Key Variable and Formula Table
| Formula / Concept | Equation | Variable Explanations |
|---|---|---|
| Percent Change | ((New – Old) / Old) × 100 | Used for population changes, emissions reduction, etc. |
| Population Growth Rate (r) | (Births – Deaths) / Total Population | Often expressed as a percentage. |
| Rule of 70 (Doubling Time) | 70 / Growth Rate (%) | Estimates how long it takes for a population to double. |
| Half-Life | Amount remaining = Original Amount × (1/2)^n | n = number of half-lives passed. |
| Productivity (NPP/GPP) | NPP = GPP – R | NPP: Net Primary Productivity, GPP: Gross Primary Productivity, R: Respiration |
Practical Examples
Example 1: Percent Change
Scenario: A city’s SO₂ emissions were 500 tons in 2015 and 350 tons in 2025. What was the percent decrease in emissions?
- Input (Old Value): 500 tons
- Input (New Value): 350 tons
- Formula: ((350 – 500) / 500) × 100
- Result: A 30% decrease in SO₂ emissions.
Example 2: Doubling Time
Scenario: A country has a population growth rate of 1.4% per year. How long will it take for its population to double?
- Input (Growth Rate): 1.4%
- Formula: 70 / 1.4
- Result: It will take approximately 50 years for the population to double.
How to Use This APES Calculator Policy Checker
This tool gives you a quick and clear answer based on the official rules. Here’s how to use it:
- Select the Exam: Choose “AP Environmental Science” from the dropdown.
- Check Policy: Click the “Check Policy” button.
- Review Results: The result area will appear, stating the official policy, the types of calculators allowed, and features that are prohibited.
- Copy for Reference: Use the “Copy Policy Details” button to save the information for later.
Key Factors That Affect APES Math Questions
Success on the math portions of the APES exam goes beyond just having a calculator. Here are key factors to focus on:
- Dimensional Analysis: You MUST be able to convert units (e.g., grams to kilograms, acres to hectares). This is one of the most frequent math skills tested.
- Showing Your Work: On the Free-Response Questions (FRQs), you get points for setting up the problem correctly. Never just write the answer, even for simple math.
- Scientific Notation: Environmental science often deals with very large or very small numbers. Be comfortable reading and writing in scientific notation.
- Formula Memorization: Since no formula sheet is provided, you must know key equations for population growth, percent change, and half-life.
- Understanding the Question: Read carefully to determine what the question is asking. Is it asking for a rate, a total amount, or a percent change?
- Reasonableness of Answer: After calculating, take a moment to ask if your answer makes sense in the context of the problem.
Frequently Asked Questions (FAQ)
1. Can I use a TI-84 Plus on the APES test?
Yes, the TI-84 Plus is a graphing calculator and is permitted on the APES exam.
2. Do I really need a graphing calculator for APES?
No, you don’t need one. The math problems can be solved with a scientific or even a four-function calculator. However, if you are already comfortable with your graphing calculator, it is perfectly fine to use.
3. What happens if I forget my calculator?
You will have to take the exam without one. Proctors will not provide a replacement, and you cannot share with another student.
4. Do I need to clear my calculator’s memory?
No, the College Board policy states that calculator memories do not need to be cleared before or after the exam.
5. Are there math questions on the multiple-choice section?
Yes, both the multiple-choice and free-response sections can contain questions that require calculations.
6. Can I share a calculator with a friend?
No. Sharing calculators is strictly prohibited during the exam.
7. Is a formula sheet provided for the APES test?
No, you must memorize all necessary formulas.
8. What is the most common math mistake on the APES exam?
Failing to show the setup for the calculation on FRQs is a very common mistake that loses points. Another is making simple unit conversion errors.
Related Tools and Internal Resources
Here are some other helpful resources. The primary keyword for this page is can you use a calculator on the apes test.
- {related_keywords} – Explore other AP exam policies.
- {related_keywords} – A guide to setting up FRQ problems.
- {related_keywords} – Practice problems for APES math.
- {related_keywords} – Tips for mastering dimensional analysis.
- {related_keywords} – Another page discussing if you can use a calculator on the apes test.
- {related_keywords} – A final resource for can you use a calculator on the apes test.