Mastery learning is a pedagogical approach that divides content into segments, ensuring students achieve deep understanding before progressing to the next objective.
Instead of moving forward according to the calendar, students only progress if they demonstrate a genuine understanding of each learning objective, based on formative assessments and constant feedback.
Its premise is clear: almost all students can achieve a high level of success if given the right amount of time and support. Mistakes trigger targeted instructional support, reinforcing equity and a growth mindset culture.
In this article, we will delve into its meaning and how the mastery learning model works, all illustrated with practical examples common in American classrooms.
What is mastery learning?
Mastery learning is a systematic instructional model in which each student progresses through defined learning objectives when they demonstrate a high level of understanding (mastery) through high-quality formative assessments and continuous feedback.
It is one of the educational approaches that holds that academic performance is not limited by the student’s innate ability, but rather by the quality of instruction, the time available and the adequacy of pedagogical support. With this process, the goal is for students to acquire a solid knowledge base before introducing more complex content.
This approach aligns other systems such as competency-based education (CBE), in which students advance by demonstrating specific competencies, or standards-based grading, which separates the assessment of learning from factors such as behavior or task completion.
However, mastery learning is distinguished by explicitly structuring cycles of instruction, formative assessment, differentiated remediation, and re-evaluation until a high level of mastery is achieved before moving forward.
In other words, it designs the school system around evidence of learning. In this educational context, time is variable, the level of achievement is constant, and when a student makes a mistake, they are not penalized with a poor grade; instead, specific pedagogical interventions are activated.
Assessment becomes an instructional tool that ensures students achieve high levels of understanding through quality teaching, sufficient time, and support tailored to each learning style.
Origins of the mastery learning model: differences between Bloom and Keller
This strategy was proposed by Benjamin Bloom in 1968 in his Learning for Mastery (LFM), the same year that Fred Keller independently formulated the Personalized System of Instruction (PSI).
Both are based on the same logic: dividing content into short units and formatively assessing each one before moving on, but they differ in pace:
- In LFM, the teacher sets the pace for the entire group.
- In PSI, each student progresses at their own pace.
The evidence supports the model. The meta-analysis by Kulik, Kulik, and Bangert-Drowns (1990) demonstrated that these programs raise final grades from the 50th to the 70th percentile at upper elementary, secondary, and college levels.
However, its adoption presents a major challenge because, in reality, we are reversing the logic of traditional learning: it requires more effort from teachers and administrators to adapt courses and schedules to this system.
The 5 core components of mastery learning: how it works
In short, the mastery learning approach works by breaking learning into segments and ensuring that students master each goal before moving on to the next.
When a student does not reach the expected level, they are given more time, additional instruction, and new opportunities to demonstrate their progress. This ensures that no one is left behind, accumulating gaps that will ultimately have a negative impact on their learning trajectory.
It is an instructional system structured around five interdependent components that maximize learning for all students when applied together.
Below, we detail its key characteristics, presenting evidence and its immediate utility for U.S. educators, so you can explore how it works.
Clear, measurable learning objectives
Like any educational strategy, the first step is defining objectives. In mastery learning, they must be:
- Specific and observable. For example, in math, the objective should not simply be “understanding fractions,” but rather “adding and subtracting fractions with different denominators, simplifying the result when necessary, and successfully completing at least 3 of the 4 proposed exercises.”
- Aligned with curriculum standards. Depending on the context, these standards may include the Common Core (CCSS), the Texas Essential Knowledge and Skills (TEKS), the Next Generation Science Standards (NGSS), etc.
- Sequenced in a hierarchical order. Each objective must build upon clearly identified prior competencies. Before defining an objective, the teacher must specify what knowledge and skills the student must already possess. Each objective must require the prior competency as a foundation, building learning layer by layer.
- Communicated explicitly to students so they know at all times what is expected of them and what it means to master a unit before beginning.
High-quality initial instruction
To optimize this group instruction from the start, mastery learning must be:
- Explicit and structured, with direct modeling and guided examples, as well as fostering metacognition.
- Designed for the majority of students. Although follow-up will later be personalized, initially, the approach must ensure that most of the group achieves initial understanding without the need for immediate corrections.
- Grounded in cognitive principles. The practice must be supported by evidence such as reducing cognitive load or instructional scaffolding.
- Differentiated when necessary, but the goal is not to turn teaching into an individualized process.
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Frequent formative assessments
Formative assessments are at the operational heart of the mastery learning approach. These tools must be designed to fulfill the following functions:
- Identify specific gaps in understanding to prevent errors from becoming entrenched.
- Provide immediate and actionable feedback so that it truly helps build knowledge and reduce frustration.
- Inform teaching decisions regarding who needs correction, who needs enrichment, and what type of support is most appropriate in each case.
- Have a low emotional impact so that students view mistakes as part of the process, in an objective and enriching way.
It is advisable for the design of mastery learning assessments to include explicit mastery criteria, brief assessments for each objective or a set of small objectives, and the use of data that allows for regrouping students to optimize the process.
For example, you can use quizzes with 3–5 questions at the end of each class or simple rubrics to consolidate what has been learned and move on to the next level. As for frequency, assessments can be conducted at the end of each unit or every two weeks, depending on your strategy.
Differentiated corrective activities
The design of the activities is what sets mastery learning apart from other models:
- They must be designed to address specific gaps identified in formative assessment.
- They must cover multiple approaches to the same content through alternative explanations, peer tutoring, visual representations, multimedia materials, etc.
- They must allow for flexible grouping based on learning needs, rather than on fixed levels.
The original Bloom model proposes alternative materials (videos, simplified readings, exercises with immediate feedback), individual or small-group tutoring, and re-teaching the content with a different approach (more visual, more concrete, etc.).
Reassessment until mastery is demonstrated
Finally, reassessment serves to close the teaching cycle. In this way, the following objectives are achieved:
- The student has multiple opportunities to demonstrate the mastery achieved.
- The final assessment does not penalize time or previous attempts.
- The criterion for mastery is consistent; what adapts to the student is the time allotted. This provides transparency to the process and a level playing field.
- Progression to the next content occurs only when mastery is demonstrated.
This process is common in online courses where, in each unit, the student can retake the assessment (which is usually a multiple-choice test) until they demonstrate a solid understanding of the material.
Mastery learning examples in the classroom
Mastery learning translates into the classroom through routines and models adopted by schools and districts across the U.S.
Below, we have organized the information as follows: 4 practical examples from different subjects and grade levels, 2 real-world cases from the U.S. education system, and a direct comparison with the traditional model.
Classroom examples by subject and grade level
Let’s start with examples from mathematics, English language arts, biology, and reading.
Example 1: mathematics – fractions (middle school)
We start from the premise that, according to the Common Core (CCSS.MATH.5NF), students must master addition and subtraction before multiplying fractions.
From a mastery learning perspective, a formative assessment is administered via a 5-question quiz. If students do not score at least 70%, remedial measures such as virtual models, explanatory videos, or peer tutoring are implemented.
Following these measures, the same skill is assessed again via a quiz, requiring a score of at least 90% to advance to the next objective.
Example 2: English Language Arts – Argumentative Writing (High School)
In this example, the student must write a 1,000-word argumentative essay that includes a thesis statement, two claims supported by evidence, and a counterargument.
The student must submit a draft that will be graded using an assessment rubric. Students who do not achieve mastery will receive individual meetings with the teacher and sentence stems.
In the re-evaluation, they must achieve a score of 4/5 on all criteria to move on to the next phase.
Example 3: science – cellular biology (high school)
For this activity, the teacher requires 3 mastery checkpoints: cell structure, photosynthesis/respiration, and mitosis-meiosis, in accordance with the NGSS.
To pass each one, a score of over 85% is required. If this score is not achieved, remedial work may consist of PhET simulations, small-group review, or concept maps.
Students who master the activity first can design their own mini-research project as enrichment.
Example 4: elementary reading – decoding and fluency (grades 2-3)
The goal here is for students to read 90 words per minute with 95% accuracy. Progress is tracked weekly using Dynamic Indicators of Basic Early Literacy Skills (DIBELS), a set of standardized tests to assess reading skills.
If students fall short of this goal, they receive brief but daily remediation (for example, about 15 or 20 minutes of focused phonics), a Level 2 intervention within the RTI/MTSS framework.
As these examples demonstrate, the mastery learning model not only ensures no one falls behind (thanks to corrective measures), but also gives students who master a goal before the rest the opportunity to go further, preventing boredom and demotivation among the most advanced students.
Real U.S. case studies
The first case study demonstrates how you can combine mastery learning with other strategies. The NGO Modern Classrooms Project (MCP), which began in two classrooms in Washington, D.C., combines blended learning, self-paced learning, and mastery learning.
In 5 years, it has reached more than 1,900 districts and 6,100 schools, with 65,000 teachers trained. By applying this system, the Game Development & Design School increased its algebra scores by 30%.
A second case is that of the Connecticut mastery-based learning initiative, which institutionalized the mastery learning approach as state policy.
No student advances or passes unless they demonstrate the expected mastery, and all students are held to the same standards, though with flexibility in how the material is taught and how learning is demonstrated.
Mastery learning vs. traditional learning in practice
Now that you have detailed information about this learning model, the following table provides a quick comparison with the traditional model, which will help you better understand the advantages of mastery learning that we will discuss in the next section:
| Aspect | Traditional learning | Mastery learning |
| Time per unit | Fixed | Variable, until mastery is achieved |
| Grading | Penalizes early attempts | No penalty; only final mastery counts |
| Students who don’t master the content | Move forward with gaps | Receive corrective support before advancing |
| Teacher role | Deliver the same content to all | Diagnose gaps and provide targeted interventions |
| Student motivation | Fear of failure | Growth mindset, error became a learning opportunity |
Advantages of the mastery learning approach
Putting mastery learning into practice benefits students, teachers, families, and the wider school community, supported by research and real-world examples already being applied in the United States.
Equity and access
Mastery learning is based on the evidence that all students can master the content. This premise helps close learning gaps, eliminate the stigma of “inability,” and promotes equity.
How does it achieve this? By preventing students from moving forward with gaps, implementing tailored pedagogical interventions in response to errors, and respecting different learning paces.
Deep understanding vs. surface-level learning
Progress in this model depends on the time needed to master all the content. With this strategy, students build a solid knowledge base, avoiding what is known as the “house of cards” of traditional learning.
By using retrieval practice as a corrective measure and for re-evaluation, knowledge is retained in the long term.
Motivation and autonomy
Another important benefit of mastery learning is that students no longer feel the pressure to compete for grades and discover that learning can be a collaborative and enriching activity.
As a result, students can develop skills such as perseverance, resilience, and confidence, while also strengthening their autonomy and self-regulation. The end result is a commitment to their progress and an intrinsic motivation that helps them understand the joy of learning.
Personalization and Flexibility
Personalizing the learning experience helps tailor objectives to the student’s actual pace and allows for grouping the class based on learning needs, rather than fixed levels.
This flexibility also promotes the recognition of prior learning, as students can earn credit for what they learn outside the classroom through experiences, volunteer work, etc.
Benefits for families, the community, and businesses
Mastery learning also makes it easier for families and the community to actively participate in the learning process.
The student’s family better understands what is expected of them, thanks to clear goals and report cards based on a wide variety of assessments.
This approach creates more opportunities for families and the school to work together, which in turn impacts the community and the business sector.
On the one hand, community organizations become partners in providing hands-on learning experiences; on the other hand, businesses can help young people develop skills relevant to the job market and tap into a talent pool with verifiable skills.
Mastery learning approach: the challenge of formative assessment
Mastery learning relies on frequent formative assessments and, above all, on the ability to reassess students as many times as necessary until they demonstrate mastery.
This strategic flexibility also poses a significant challenge when assessments are conducted remotely: every time a student retakes an exam, a test, or a quiz, the institution must ensure that each assessment is conducted under equal conditions for everyone.
The solution lies in professional proctoring systems—non-intrusive remote supervision that maintains the integrity of the assessments.
If you’d like to see how to apply these types of solutions to your educational project, at Smowltech we invite you to request a free demo of our proctoring plans.
We offer our clients a proctoring solution that generates objective evidence of what happens during each exam, in a non-invasive way, ensuring reliable and equitable retakes where the teacher has the final say.
Tools & resources
If you want to dive deeper into the mastery learning model or start implementing it in your setting, you can do so using the various references we’ve included throughout this article, as well as by exploring the following resources:
- Khan Academy for Educators: a free platform for mastery learning worldwide.
- The teacher dashboard allows you to assign personalized assignments aligned with Common Core standards and access free courses and implementation guides.
- Aurora Institute: a leading organization in promoting competency-based learning in U.S. public schools. It offers a vast library of reports, school design guides, practical frameworks, and a key reference guide on the U.S. educational ecosystem.
