A Quick Guide to Bloom’s Taxonomy
Bloom’s taxonomy is a widely recognised framework for defining learning objectives. It was first developed in 1956 by educational psychologist Benjamin S. Bloom and later revised by other scholars, such as Lorin Anderson and David Krathwohl.
Bloom’s Taxonomy is a useful tool for discussing and structuring learning goals, curriculum design, and assessment. The taxonomy was created to:
- Facilitate the exchange of information about curricula and assessment
- Suggest types of curricular objectives
- Support curriculum leaders and teachers in planning learning experiences and preparing assessments
- Help educational specialists discuss learning goals and educational challenges with more precision
This guide summarises Bloom’s Taxonomy, its later revisions, and the key elements that make it such a powerful educational framework.
Table of Contents
Bloom’s three domains of learning objectives
Bloom’s taxonomy defines three domains of learning objectives, each encompassing different skills:
- Cognitive (knowledge-based)
- Psychomotor (action-based)
- Affective (emotion-based)
Together, these domains provide a holistic view of learning, recognising that education involves thinking, doing, and feeling.
The cognitive domain
The cognitive domain focuses on intellectual skills and cognitive processes. It describes how learners progress from basic recall to more complex thinking skills.
Original Cognitive Levels (1956)
Bloom’s original taxonomy organised the knowledge acquisition process into six levels, each adding increasing complexity:
- Knowledge
- Comprehension
- Application
- Analysis
- Synthesis
- Evaluation
Revised Cognitive Levels (2001)
In 2001, Anderson and Krathwohl updated the taxonomy, using verbs rather than nouns and reorganising the highest levels.
Here is a summary of the revised taxonomy and a few examples of action verbs for each level:
- Remember: Recognise and recall information or basic concepts
- Action verbs: define, select, order, list
- Understand: Explain concepts and connect new knowledge to prior learning
- Action verbs: classify, summarise, discuss, convert, paraphrase
- Apply: Apply knowledge to specific situations and solve problems when needed
- Action verbs: demonstrate, operate, practice, predict, show
- Analyse: Break down information and understand relationships between parts
- Action verbs: calculate, examine, compare, experiment, infer
- Evaluate: Make judgements based on criteria and standards
- Action verbs: argue, choose, justify, assess
- Create: Create new meaning, ideas, and solutions from combining acquired knowledge
- Action verbs: develop, formulate, reconstruct
By using this taxonomy and its action verbs, educators can formulate clear, measurable learning objectives and align assessments accordingly.
The four knowledge dimensions
In addition to revising the cognitive processes, Anderson and Krathwohl introduced four knowledge dimensions, transforming the taxonomy into a two-dimensional framework.
- Factual: Knowledge of specific information, such as terminology. It encompasses the basic elements students must know to be acquainted with a discipline.
- Conceptual: Knowledge of the interrelationships between basic information within a larger structure, such as classifications, principles, generalisations, models, and theories.
- Procedural: Knowledge of subject-specific skills, techniques, methods, and criteria that allow one to perform a certain task
- Metacognitive: Knowledge of cognition, including one’s own cognition. It encompasses strategic knowledge and awareness of one’s own thinking.
This two-dimensional structure allows educators to combine a cognitive process (e.g., Analyse) with a knowledge type (e.g., Conceptual), resulting in well-defined learning objectives, structured with clear action verbs. See the table below for example.
The psychomotor domain
The psychomotor domain encompasses physical skills, motor function, and object manipulation required for certain activities.
Bloom’s original work gave limited attention to this domain, but the educator Elizabeth Simpson (1972) further expanded it into seven levels:
- Perception: The learner uses sensory cues to guide motor activity. This level relates to sensory stimulation, cue selection, and translation into action.
- Action verb examples: detect, describe, select
- Set: The learner is ready to act according to dispositions that determine their response. This step involves preparatory adjustments and readiness (mental, physical, emotional) to act.
- Action verb examples: begin, display, explain
- Guided Response: Early steps in the development of a skill. The learner progresses through guidance, imitation, and trial and error.
- Action verb examples: measure, calibrate, manipulate
- Mechanism: Learned response becomes habitual. The learner can perform movements with some confidence and ability.
- Action verb examples: assemble, fix, organise
- Complex overt response: The expert can perform complex motor acts correctly and efficiently. This level involves a high degree of skill, resolution of uncertainty, and automatic performance.
- Action verb examples: assemble, fix, organise
- Adaptation: The expert can modify skills to meet new circumstances or requirements.
- Action verb examples: change, rearrange, adjust
- Origination: The expert can create new movements to solve problems and respond to specific circumstances.
- Action verb examples: combine, build, create
This domain is especially relevant in technical and vocational education, where motor skill performance is central.
The affective domain
The affective domain relates to socioemotional skills. It focuses on attitudes, values, motivation, and emotional development. It consists of five progressive levels:
- Receiving: The learner is willing to listen and passively pays attention.
- Responding: The student engages with the learning process by acting or reacting.
- Valuing: The learner attaches value or attributes meaning to information or a behaviour.
- Organising: The learner can organise and prioritise the value of educational elements by comparing and synthesising.
- Characterising: The learner internalises values and behaves according to a value system.
Considering the affective domain in educational settings can improve learning experiences for students. In addition, it contributes to shaping professional ethics, enhancing social skills, and developing emotional intelligence.
When applied thoughtfully, Bloom’s Taxonomy supports coherent curriculum design, aligned assessment, and progressively challenging learning experiences.
Ultimately, Bloom’s Taxonomy is more than a classification system. It is a strategic tool for designing education that promotes deep understanding, critical thinking, practical competence, and personal growth. To learn more about how it can fit technical education, read our article Bloom’s Taxonomy: Examples for Automotive Education.
