CMAS Testing Colorado: What Students & Parents Need to Know

CMAS testing in Colorado — the Colorado Measures of Academic Success — is the statewide assessment system used to measure student learning across English Language Arts (ELA), mathematics, science, and social studies. If you're a student, parent, or teacher in Colorado, understanding what CMAS tests cover, when they're administered, and what the scores mean helps you prepare more effectively and interpret results correctly.

This guide covers the full picture of CMAS testing: what subjects are assessed at each grade level, the test format, how scores are reported, and practical preparation strategies.

What Is CMAS?

CMAS stands for Colorado Measures of Academic Success. It's Colorado's federally required statewide assessment, administered annually by the Colorado Department of Education (CDE) through a partnership with testing vendors. CMAS replaced the TCAP (Transitional Colorado Assessment Program) and has been Colorado's primary state assessment system since 2015.

The purpose of CMAS is to measure whether students are meeting Colorado Academic Standards (CAS) — the state's academic expectations for each grade level. Results are used for:

• School accountability under federal and state law
• Informing instruction at the classroom level
• Identifying students who may need additional support
• Tracking academic growth over time
• Providing families with information about their child's academic progress relative to grade-level expectations

CMAS is not a graduation requirement and does not affect a student's grades. However, the results do feed into school and district accountability ratings, which affects how schools are evaluated and what interventions or supports are provided.

Which Grades Take CMAS?

CMAS testing applies to students in grades 3 through 8 for ELA and mathematics, with science and social studies assessments at specific grade levels:

• English Language Arts (ELA): Grades 3–8
• Mathematics: Grades 3–8
• Science: Grades 5, 8, and high school (science is assessed at grade 5, grade 8, and once during high school — typically grade 11)
• Social Studies: Grades 4, 7, and high school (typically grade 8 in some districts, with flexibility in high school)

High school students take CMAS science and social studies assessments, and may take the Colorado version of the SAT (PSAT 8/9, PSAT 10, SAT School Day) as part of the state's college and career readiness assessment system. The SAT School Day is required for all 11th graders and is part of Colorado's assessment portfolio alongside CMAS.

CMAS Test Format and Content

CMAS assessments are computer-based, administered at schools on school-issued or school-provided devices. Each subject has its own format:

ELA (English Language Arts)

The CMAS ELA assessment measures reading, writing, and language skills. Students read literary and informational passages and answer questions about comprehension, vocabulary, text structure, and author's purpose. There are also writing tasks where students compose responses using evidence from provided texts. The ELA assessment is one of the more time-intensive sections because it involves reading extended passages and constructing written responses.

Mathematics

The math assessment covers the Colorado Academic Standards for mathematics at each grade level. In lower grades, this includes number operations, fractions, geometry, and measurement. In higher grades, it includes ratios, proportional reasoning, statistics, probability, and algebraic thinking. The assessment uses a mix of multiple-choice questions, technology-enhanced items (drag-and-drop, graphing), and constructed-response items requiring written explanations.

Science

CMAS science uses the Next Generation Science Standards (NGSS) framework, which Colorado adopted. Rather than testing factual recall, NGSS-aligned assessments measure science practices — designing investigations, analyzing data, constructing explanations, and applying engineering thinking. This approach can feel unfamiliar if students are used to traditional fact-based science tests.

Social Studies

The social studies assessment covers history, geography, economics, and civics aligned to Colorado Academic Standards. Grade 4 focuses on Colorado history and geography. Grade 7 focuses on world history and ancient civilizations. High school assessments cover U.S. history and American government concepts.

When Is CMAS Testing Administered?

CMAS testing typically occurs in the spring, between late March and early May. The Colorado Department of Education sets annual testing windows, and individual districts and schools schedule specific testing dates within those windows. Most schools administer CMAS over several days or weeks, testing different subjects on different days to manage student stamina and scheduling logistics.

Parents receive advance notice of testing dates from their schools. If a student is ill or has a scheduled absence during testing, makeup opportunities are generally available within the testing window. Missing the testing window entirely is less common — schools work hard to ensure all enrolled students participate, as participation rates affect accountability calculations.

Testing sessions are typically 30–60 minutes per section, spread across multiple days. The total testing time varies by grade and subject, but a typical CMAS week might involve 2–3 testing sessions per subject across 2–3 days.

How CMAS Scores Are Reported

CMAS scores are reported on a scale and classified into four performance levels:

• Level 1: Did Not Yet Meet Expectations — student's performance is below grade-level expectations for that subject
• Level 2: Partially Met Expectations — student demonstrates partial mastery of grade-level skills
• Level 3: Met Expectations — student demonstrates proficiency at grade level
• Level 4: Exceeded Expectations — student demonstrates advanced mastery beyond grade-level expectations

Scores are reported to families through score reports sent home by schools, typically in late summer or early fall following spring testing. The report shows scale scores, performance levels for each subject tested, and often comparison information showing how the student's scores compare to state averages.

Schools also receive detailed reports that break performance down by sub-area (e.g., within math, you might see separate information about Operations and Algebraic Thinking versus Measurement and Data). Teachers use this sub-area data to identify gaps and adjust instruction for the following year.

Does CMAS Affect Student Grades?

No — CMAS scores do not directly affect a student's report card grades or GPA. Participation is required by state and federal law (under ESSA, the Every Student Succeeds Act), but the results feed into school and district accountability, not individual student records.

That said, CMAS performance can inform placement decisions. Some schools use CMAS data — in combination with other assessments and teacher observation — when making decisions about intervention programs, gifted services, or advanced coursework placement. This varies by district, so it's worth asking your school how they use CMAS results in their specific placement processes.

Opting Out of CMAS Testing

Colorado allows parents to excuse their child from CMAS testing. The excusal process typically involves submitting a written request to the school before the testing window. Colorado law does not prescribe a specific form or deadline for excusals, so contact your district for their process.

However, high opt-out rates at a school affect that school's accountability calculations. Schools with participation rates below 95% receive a penalty in their accountability ratings. This means that opting out has implications beyond your individual child — it affects how the school is measured and potentially what resources it receives. Most education advocates recommend participation unless there's a specific individualized reason for excusal.

How to Prepare for CMAS

Effective CMAS preparation doesn't require excessive test-prep drilling — the assessment is designed to measure genuine learning of the Colorado Academic Standards, not test-taking tricks. The most effective preparation focuses on genuine content mastery. That said, some targeted preparation does help:

Review grade-level standards. The Colorado Department of Education publishes the Colorado Academic Standards on its website. Reviewing what's expected at your child's grade level helps you understand what the test is measuring and identify any content gaps.

Practice with technology-enhanced items. Because CMAS is computer-based and includes non-traditional question types (drag-and-drop, graphing, multi-part items), some familiarity with the interface helps. Students who have experience with computer-based testing are less likely to lose time figuring out how to interact with question formats on test day.

For ELA: practice extended writing. The writing tasks on CMAS require students to cite evidence from passages in their responses. Students who practice reading a passage and writing a text-based response are better prepared than those who focus only on multiple-choice reading questions.

For Science: think through investigations. NGSS-aligned science questions often describe an experiment or investigation and ask students to analyze the data, identify variables, or evaluate conclusions. Practice thinking through scientific reasoning processes, not just memorizing facts.

Maintain routines. Sleep, nutrition, and exercise in the days before testing have measurable effects on cognitive performance. Cramming the night before CMAS is less effective than a week of normal sleep and activity.

CMAS and Colorado School Accountability

CMAS data is a central component of Colorado's school accountability system. The CDE uses CMAS results to calculate School Performance Framework (SPF) ratings — a measure of how well schools are educating students. These ratings affect whether schools are considered to be performing adequately, and districts with persistently low-performing schools face requirements for improvement planning and, in extreme cases, state intervention.

For parents evaluating schools or considering school choice options, CMAS results are publicly available through the CDE's website. You can look up any Colorado public school's test scores, performance levels, and growth data. This public data allows meaningful comparison of how schools are serving students academically.

CMAS Testing: Prepare with Purpose

CMAS testing in Colorado is designed to give students, parents, teachers, and schools accurate information about academic progress. Understanding what it covers — and why — turns testing from a stressful unknown into a manageable part of the school year.

The most effective approach is genuine preparation: review the standards, practice the formats, and maintain healthy routines before test day. Students who understand what CMAS is measuring — proficiency in Colorado's academic standards — perform better than students who approach it as an unknown quantity.

Free practice tests are one of the best ways to start. They show you which content areas need the most work, so you can focus your preparation time where it counts most.