What is the difference between practice, experimentation and revision, and how do you make all three visible in a Sustained Investigation?
Practice, experimentation and revision: distinguish the three modes of making, and structure a body of work so that the investigation visibly develops over time rather than repeating a single idea.
A focused answer on the AP Art and Design engine of making: practice (building skill through repetition), experimentation (trying new approaches and variables), and revision (responding to what you learn by reworking). Explains how to sequence a Sustained Investigation so a reader can see it develop, the single most rewarded quality in the 60 percent section.
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What this topic is asking
Practice, experimentation and revision is the phrase at the heart of the Sustained Investigation rubric and the wording of written evidence prompt 2. Skill 2 (making) is built from these three modes. They are not synonyms for "working hard": each is a distinct way of moving a body of work forward, and a reader looks for all three. This page distinguishes them and shows how to sequence a portfolio so the development is visible.
The three modes
They form a loop rather than a line. You practice a technique until you control it; you experiment by changing a variable and seeing what it offers; you revise by carrying the discovery (or fixing the failure) into the next piece. Then you practice the new approach, and the loop turns again.
- Practice example: drawing the same hand 20 times to control proportion and line weight.
- Experimentation example: introducing wax resist into a wash you have already mastered, to see what it does to the surface.
- Revision example: after the wax pools badly, reworking the method by applying it warm and thin, then judging the improved result.
Why repetition alone fails
This is the most common way strong makers underscore. Technical skill is real but it is one criterion among several; without experimentation and revision the inquiry cannot visibly progress, and the larger share of the Sustained Investigation score depends on that progress.
Making development visible
The reader only sees your 15 images and your two short statements. Development that happened in your head but not on the wall does not count. So you must submit the evidence: the test pieces, the failed attempt, the reworked version next to the original, the detail image that shows a change.
Why this matters
Written evidence prompt 2 names practice, experimentation and revision explicitly, and the images are scored for the same thing. A student who can point to each mode in their own work, and who has kept the process trail, writes prompt 2 easily and presents a Sustained Investigation that does exactly what the rubric asks. A student who only made finished pieces has nothing to point to.
Try this
Q1. Distinguish practice, experimentation and revision in one phrase each. [Recall]
- Cue. Practice, repetition to build skill; experimentation, trying new variables to discover; revision, reworking in response to what you learn.
Q2. A student masters charcoal portraiture, then tears and reassembles a portrait, then, after the seams distract, glues the fragments to a toned ground. Label each step. [Short explanation]
- Cue. Mastering the portrait is practice; tearing and reassembling is experimentation; gluing to a toned ground to fix the distracting seams is revision.
Exam-style practice questions
Practice questions written in the style of College Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AP 2024 (written evidence, style)5 marksSustained Investigation written evidence prompt 2 asks you to describe ways your sustained investigation developed through practice, experimentation and revision (600 character maximum). Write a response and explain why it earns credit.Show worked answer →
Prompt 2 is where you prove the engine of the course turned. The reader looks at the 15 images and your words must point to development they can actually see.
A strong response names all three modes with evidence: "I practiced by repeating ink-wash portraits until I could control the wet edge. I experimented by introducing bleach to lift highlights, then by collaging torn paper into the wash. After the bleach corroded the paper too far, I revised by sealing the surface first, which let me keep the corroded look without losing the image."
Why it earns credit: it distinguishes practice (repetition for skill), experimentation (new variables), and revision (responding to a problem), and each is tied to something visible in the images. A weak response just says "I worked hard and tried my best."
AP 2023 (written evidence, style)5 marksA student submits 15 technically strong but nearly identical drawings of the same subject. Explain, using the rubric, why this is likely to score poorly, and what the student should have done.Show worked answer →
The Sustained Investigation rewards practice, experimentation and revision, the visible development of a body of work. Fifteen near-identical drawings show practice (repetition) but no experimentation and no revision, so the investigation does not develop.
A strong answer explains the rubric consequence: the inquiry and the practice-experimentation-revision criteria, which together carry the larger share of the Sustained Investigation score, cannot be met by repetition alone.
What the student should have done: keep the recurring subject but vary the question, change materials or processes, respond to discoveries, and submit the failed attempts and reworkings so a reader can trace the development. Markers reward visible change driven by inquiry, not polish alone.
Related dot points
- Skill framework overview: identify the three course skills (inquiry and investigation; making through practice, experimentation and revision; communicating) and the three big ideas (investigate, make, present), and explain how they organize the portfolio.
A focused answer to the AP Art and Design framework: the three course skills (inquiry and investigation; making through practice, experimentation and revision; communicating ideas) and the three big ideas (investigate, make, present). Explains how the skills map onto the Sustained Investigation and Selected Works portfolios so you know what every assignment is training.
- Developing an inquiry: form a specific, generative question that can drive a sustained body of work, and break it into guiding questions that direct practice, experimentation and revision.
A focused answer on the AP Art and Design inquiry: how to write a specific, generative central question for the Sustained Investigation, why broad themes are not inquiries, and how to break the inquiry into guiding questions that direct each new experiment so the body of work develops rather than repeats.
- Investigating materials, processes and ideas: distinguish the three, and investigate them through deliberate testing so that material and process choices serve the ideas behind the work.
A focused answer on the AP Art and Design triad of materials, processes and ideas: what each term means, how they differ, and how to investigate all three deliberately. Shows why testing materials and processes (not just producing finished pictures) is the evidence readers want, and how material choices should serve the ideas of the inquiry.
- Documenting process and decision-making: keep and select process images (sketches, tests, models, stages and failures) so the reader can trace the practice, experimentation and revision behind the work.
A focused answer on documenting the AP Art and Design process: which process works (sketches, tests, plans, models, in-progress stages, failures) to keep and photograph, when to submit detail images, and how process documentation provides the visible evidence of practice, experimentation and revision that the Sustained Investigation rewards.
- Building the Sustained Investigation portfolio: select and sequence 15 images (resolved works, process work and details) plus the two written responses so the body of work evidences inquiry, practice-experimentation-revision, synthesis and skill.
A focused answer on assembling the AP Art and Design Sustained Investigation: how to select 15 images from a year of work (mixing resolved pieces, process work and details), sequence them so development reads, and pair them with the two written responses, so the portfolio evidences inquiry, practice-experimentation-revision, synthesis and skill, the 60 percent section.
Sources & how we know this
- AP Art and Design Course and Exam Description — College Board (2022)
- AP Art and Design Sustained Investigation Overview — College Board (2022)