Blog | Accelerate Learning

Math Assessment in California Schools: The Shift Toward Differentiated Instruction

Written by ALI Staff | November 17, 2025

Math assessment in California is changing. What used to be a compliance exercise or reporting tool is now becoming a strategy to boost student growth.

While the California Assessment of Student Performance and Progress (CAASPP) still anchors statewide accountability, it doesn’t guide the day-to-day decisions teachers make.

Across California, educators are using diagnostic and formative assessments to spot student strengths, patch up knowledge holes, and adjust lessons to fit each learner. It’s a key shift driven by the state’s new Math Framework, which emphasizes flexible, inclusive, and responsive instruction.

The result is a new vision for California math classrooms where assessment isn’t just about measuring progress, but about how to figure out what’s driving it to reach all learners.

 

 

California’s Evolving Math Assessment Landscape (2025)

California math assessments are designed to do more than measure achievement. 

They help track growth over time. CAASPP, the state’s primary system, gives teachers a benchmark for their students’ progress toward meeting grade-level standards. 

Its adaptive format gives educators and policymakers valuable data about long-term trends and overall progress.

Still, its once-a-year schedule makes it less useful for day-to-day teaching decisions. Formative assessment tools become more important. Quick checks, performance tasks, and digital diagnostics provide immediate, actionable feedback. 

The California Mathematics Framework reinforces this kind of adaptable approach, encouraging teachers to use assessment as consistent student feedback. That makes assessment a part of learning and how teachers guide, adjust, and deepen students’ math understanding throughout the year.

 

Diagnostic and Formative Tools That Power Classroom Learning

Unlike traditional end-of-unit or statewide tests, math assessment in California is increasingly designed to help guide teaching in a more flexible way. 

Formative assessments are quick, ongoing checks. These can be exit tickets, short quizzes, or mini online exercises that show teachers what students know in the moment. 

Diagnostic tools, often used before a new unit, can uncover skill gaps or highlight student misconceptions.

Both create an instructional feedback loop: teachers assess, tweak their approach, and reteach in real time. 

Platforms like STEMscopes Math and Math Nation provide digital diagnostics and formative resources that make it easy to create this kind of feedback loop.

Instead of waiting for test results that won’t give the full picture of what students can do, they catch gaps right away while adjusting material so it meets students where they are.

 

"When assessment becomes an expectation or a “normal” part of that day’s lesson, students begin to feel less pressure."

 

Here’s an example. In one California classroom, a 6th-grade teacher uses a short diagnostic pre-test before starting a unit on ratios. 

The results show which students already understand proportional reasoning and which need to review fractions. By the next afternoon, students are split into small groups

Some tackle harder challenges, while others brush up on the basics. Each learner starts the unit at the right place.

This kind of real-time assessment reflects a broader shift where teachers are using data not to label students, but to guide them forward and help them grow.

 

How Teachers Use Math Assessments to Drive Differentiated Instruction

In today’s classrooms, formative assessment is an essential part of differentiated instruction. Teachers look beyond classroom averages to understand how students think, then adjust their approach to address learning needs. 

Diagnostic math tools give educators a place to start. A quick pre-assessment might show that some students are ready to explore multi-step ratio problems, while others need to revisit equivalent fractions. 

Using that insight, teachers form flexible groups that shift as students progress. Groups can look quite a bit different from unit to unit, as well.

Formative assessments keep the loop going, lesson by lesson. A warm-up quiz or short reflection helps teachers see whether they should reteach a concept or set advanced learners up with an extension task. 

Students can track their own growth using self-assessment checklists or ask for support when they need it on exit tickets.

This cycle of assessing, reflecting, and adjusting turns math assessment into a tool for equity in the classroom while giving students a sense of ownership over their learning. From there, students can also become more engaged, which is essential to student success

Differentiation by Grade

What differentiated instruction looks like evolves as students grow, but the goal of assessment as a key part of the approach stays the same. Using assessment data should guide meaningful learning at every stage.

  • Elementary School: The focus is on conceptual understanding and number sense.
    Teachers use quick, visual checks like number talks, manipulatives, or whiteboard responses to see how students reason and identify early misconceptions.
  • Middle School: The emphasis is on readiness for pre-algebra and fractions mastery.
    Teachers use diagnostic math tools to group students by skill level, address missing foundations, and determine when to scaffold or move students into enrichment.
  • High School: The focus is on applying formative data to guide algebra, geometry, and college-prep readiness. Teachers adjust pacing, reteach complex concepts, or design targeted review sessions based on data trends while students engage in self-reflection.

Across all grades, math assessment in California works alongside differentiated instruction to give students continuous feedback and opportunities for reflection to guide progress.

 

"Students begin to see evaluation as a tool to help them grow instead of something to feel intimidated about, and teachers can make decisions that support them."

 

Building a Culture of Low-Stakes, High-Impact Assessment

Math anxiety or math phobia is a real thing, and high-stakes or timed tests are a big contributor to how students feel about math. Creating a classroom where assessment supports learning is essential to effective differentiated instruction. 

Most importantly, formative assessment doesn’t have to be or feel high-stakes. More frequent, low-pressure checks can provide even richer insight into student understanding, without the stress on students.

Here are a few strategies to help build that classroom culture: 

  • Exit tickets can be used to see what students understood from the day’s lesson.
  • Reflective warmups help students recall prior learning and prepare for new concepts.
  • Quick quizzes can guide reteaching or group adjustments for the next class.
  • Peer feedback encourages students to explain their thinking and learn from each other.
  • Student goal tracking supports reflection and ownership of learning.

When assessment becomes an expectation or a “normal” part of that day’s lesson, students begin to feel less pressure. Assessment that doesn’t feel like an exam is great, too. 

On a deeper level, when assessment is directly tied to instruction, it signals a culture of continuous improvement. Students begin to see evaluation as a tool to help them grow instead of something to feel intimidated about, and teachers can make decisions that support them.

 

 

Making Math Assessment Work — A Practical Roadmap

Trying out new ways to check student learning, identify math struggles, or adjust lessons might seem overwhelming, but it doesn’t have to stay that way. A step-by-step approach allows teachers the room to test ideas, see what works, and then build from there.

  1. Pilot a tool. Start small with one type of assessment in a single grade or unit. Zero in on the information that can be used right away to inform instruction. You’re not looking for heavy reports, but quick, actionable insights. 
  2. Collaborate on data. Check outcomes and spot patterns with teammates using professional learning communities (PLCs) or coaching loops. Swap what you learn to find shifts in performance or see which methods could work on a wider scale.
  3. Plan reteach and enrichment. Use the data to figure out who needs extra help or extra enrichment. Think about how to tweak lesson pacing based on what you’ve found.
  4. Reflect and scale. Think back, then grow. Evaluate what worked and what didn’t. Gradually roll out the approach to additional grades, subjects, or classrooms.

Help matters as things move forward. Professional learning and continued coaching are key. Teachers need guidance and time to adapt to data-driven instruction effectively.

 

California Classroom Snapshots

Seeing California math assessments in action makes the power of formative assessment and differentiated instruction feel more real. Here are a few examples of how it all fits together from classrooms across the state:

  • Elementary School: A 3rd-grade teacher gives students a quick math quiz before math centers to see which students need extra practice with multiplication. They group students accordingly, rotating through focus activities. The result? Students get more involved, while their grasp of the basics grows stronger.
  • Middle School: After checking their students’ math scores, a math coach plans a reteach cycle for struggling students. Advanced learners are targeted for an enrichment activity. The result? The whole group progresses, improving overall class performance and pacing.
  • High School: A math department spends professional development time linking formative assessment data with standards goals. They track student growth over time to spot trends, then adjust lessons to fix weak spots in algebra and geometry readiness. The result? Students have clear expectations, and teachers make data-driven decisions.

These snapshots show what happens when math assessments are used alongside regular check-ins and lessons that adapt. Students make clear progress, and the classroom becomes a place of adaptable learning that shifts based on needs.

 

The Future of Math Assessment in California Classrooms

The future of math assessment in California schools isn’t just focused on results. Instead, it’s built around ongoing feedback that keeps learning moving. 

Teachers now lean on quick check-ins and smart math tools to personalize their teaching, identify gaps early, and tweak lessons in real-time. This way, assessment becomes a dynamic tool, rather than a single-use case of a student’s abilities that day.

Starting small works best. Try one pre- and post-check per unit, or introduce the idea of exit tickets as quick checks on lesson objectives. These kinds of low-stakes assessments can provide immediate insights without adding to instructional planning time.

Little by little, small steps add up, shaping a classroom where a high level of differentiation feels routine. Students start to engage more deeply, and teaching decisions are backed by evidence.

To help with the shift, Accelerate Learning provides materials along with practical tips that help teachers weave evaluation naturally into daily lessons. You can create a classroom where assessment empowers your students and informs your teaching.