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Why Your Core Math Curriculum Is Failing Your Students (And What Actually Works)

January 12, 2026 4 min read
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Districts are already making large financial investments into core programs. So why are they still buying more resources to make up for what their textbooks can鈥檛 do?
Let鈥檚 be honest about what鈥檚 happening in classrooms right now.

Traditional math textbooks adopted five years ago haven鈥檛 changed since. Teachers are drowning in supplemental tools: one for differentiation, another for assessment, a third for engagement, and more. None of them talk to each other. And somehow, students are still falling through the cracks.

Sound familiar?

The curriculum crisis nobody鈥檚 talking about

Here鈥檚 the uncomfortable truth: While technology has revolutionized how students learn, core curricula are stuck in the past. We鈥檙e still clinging to one-size-fits-all textbooks in a world where every student learns differently.

The problems are glaring:

Traditional textbooks can鈥檛 differentiate. Every student receives the same instruction, whether they鈥檙e struggling with basics, ready to sprint ahead, or anywhere in between.

An SOS sign on red paper, held up next to several books by a young student with one hand, where the student rests head on the back of the other hand that is on the top of an open book

Your edtech stack is a Frankenstein鈥檚 monster. Districts have cobbled together multiple products to fill the gaps. The result? Teachers juggling five different tools, students confused by inconsistent interfaces, and district leaders handling a logistics nightmare.

New teachers are not adequately set up for success. Teacher shortages mean less experienced 糖心动漫vlog are delivering math instruction without adequate support. A textbook and pacing guide aren鈥檛 enough when managing 25 students with vastly different needs.

Differentiation is theoretically important but practically impossible. Traditional curricula expect teachers to create differentiated instruction from scratch鈥攁 task that鈥檚 simply not sustainable.

What if differentiation wasn鈥檛 optional鈥擝ut built in?

This is where most articles tell you to 鈥渋mplement more interventions鈥 or 鈥渦se data better.鈥 But that鈥檚 not the problem. The problem is that your core curriculum was never designed for how teaching and learning actually happen today.

Enter 鈥攖he breakthrough core curriculum with differentiation in its DNA.

Imagine a math program where:

  • Takeoff by IXL for Grade K to 5 Math workbooks on the back of an opened laptop with Differentiation, solved on screen in a stylized presentation
    Every lesson includes embedded support and ready-to-use enrichment options
  • Assessments automatically group students by learning needs and provide targeted materials for reteaching
  • Online practice adapts in real time to each student, adjusting difficulty levels automatically
  • Everything lives in one integrated platform鈥攍esson plans, print materials, assessments, adaptive practice, and data insights working together seamlessly

Differentiation, solved

If anyone knows how to crack the differentiation code, it鈥檚 IXL鈥攖he personalized learning platform trusted by 17 million students worldwide. For more than 25 years, IXL has perfected the technology that meets students exactly where they are. Now, that same expertise powers Takeoff by IXL, the first and only core curriculum intentionally built for continuous differentiation.

includes a universe of educational tools鈥攁daptive practice, actionable analytics, engagement tools, and more鈥攁ll connected directly to daily core instruction.

Takeoff differentiation solved diagram in a stylized infinity loop

It weaves differentiation into every lesson, every assessment, and every moment of teaching and learning.

Here鈥檚 how it works:

Before each lesson, Takeoff suggests readiness skills students can work on to prepare.

During lessons, teachers get real-time guidance on scaffolds, misconceptions to look out for, and extension activities鈥攚ith one-click access to classroom engagement tools right within the lesson flow.

After instruction, differentiated skill practice on IXL adapts to meet all students where they are, seamlessly connected to that day鈥檚 learning objectives.

After unit assessments, Takeoff automatically creates small groups based on which objectives students need reteaching in鈥攁nd provides the instructional materials to address those gaps. No more staring at test results wondering what to do next.

One platform with everything you need

Built from the ground up as a complete, cohesive teaching and learning ecosystem, Takeoff includes:

鉁 Daily lesson plans
鉁 Student workbooks
鉁 Adaptive online practice
鉁 Built-in assessments
鉁 Actionable analytics and reporting
鉁 Video tutorials and engagement tools
鉁 Multi-language support

Everything teachers need in one place. No juggling multiple vendors or wrestling with different interfaces.

In closing

Your current curriculum asks teachers to do the impossible: meet every student鈥檚 needs with materials designed for the mythical 鈥渁verage鈥 learner.

Takeoff by IXL proves that core curriculum can be both rigorous and personalized, structured and flexible, teacher-friendly and student-centered. 滨迟鈥檚 differentiation not as an add-on, but as the foundation.

Because all students deserve instruction that meets them where they are. And every teacher deserves tools that make that possible.

滨迟鈥檚 differentiation, solved.

Ready to see how Takeoff transforms math instruction? Visit to preview a sample lesson. Reach out at takeoff@ixl.com or 855.255.8800 to start a strategic pilot.

About IXL Learning

IXL Learning has revolutionized educational technology since it began in 1998. Today, the company leads the world of education through innovation and provides a diverse set of products and services that help learners develop skills in math, literacy, language and more. The company鈥檚 mission is to create breakthrough solutions to education鈥檚 most pressing challenges and inspire students to become lifelong learners. IXL Learning鈥檚 products and brands include IXL, Takeoff by IXL, Rosetta Stone, Wyzant, Vocabulary.com, TPT, ABCya, Education.com, Carson Dellosa Education, and more.