ARC’s State-of-the-Art Formative Assessment Framework—Now Built on the TEKS!

TEKS IRLA: Independent Reading Level Assessment

Developmental Reading Taxonomy™ Built on the Texas Essential Knowledge and Skills

The Independent Reading Level Assessment (IRLA) is a unified, standards-based framework for student assessment, text leveling, and curriculum and instruction. The IRLA includes every Texas Essential Knowledge and Skills (TEKS) standard for Reading for students in Grades PreK through 12.

TEKS ENIL: Evaluación del nivel independiente de lectura

Built on the Spanish Language Arts and Reading (SLAR) TEKS for Grades K through 6, the Evaluación del nivel independiente de lectura (ENIL) parallels the IRLA TEKS while reflecting the different developmental stages of learning to read in Spanish in the lower grades. ENIL TEKS establishes the same substantive and rigorous expectations for Spanish LA students, K-12, as IRLA TEKS does for English LA students.


SchoolPace® is an online performance management system that provides student performance data for all stakeholders. Teachers, school administrators, and district administrators can access dashboards, reports, and graphics that show detailed information about reading progress. SchoolPace gives real-time, actionable insight into the volume of reading being completed, the amount of growth being made, and which reading standards are being mastered.

Most of these analytics are driven by data from the eIRLA® and eENIL®, a powerful formative assessment conferencing tool.

  • With the eIRLA®, teachers can track which standards each student has mastered, and use embedded assessments to provide evidence of that mastery.
  • Using the eENIL® measure students’ skill-by-skill achievement using the TEKS for reading literary and informational text, as well as those Language and Foundational Skills standards key to reading success in Spanish.

A SchoolPace®/eIRLA® subscription is valid for one school for one school year, starting July 1st and ending June 30th. Up to 20 total printed copies of a combination of the IRLA and/or ENIL are included with the subscription.

TEKS Starter Kit


Incorporate formative assessment and differentiated support with the TEKS IRLA starter kit. As part of an Integrated Literacy block, your teachers will use the IRLA® as a tool for assessment, coaching, and instruction, and leveled libraries to support a variety of reading levels in one classroom.

For more information visit our TEKS IRLA & TEKS ENIL Starter Kit product page.

100 Book Challenge


100 BOOK CHALLENGE® aligns all of your existing reading materials and assessment tools using one simple color-coded leveling platform, keyed to TEKS, that students, teachers, and parents can understand and use to ensure every student is making expected progress towards proficiency.

For more information download one of our slicks:


Research Labs RESEARCH LABS® ensure every teacher provides grade-level rigor through the use of complex text to teach TEKS ELA/R, Science/Social Studies content, and academic vocabulary. Leveled libraries of informational text and a carefully structured project-based learning format provide the differentiated support needed to ensure every student is successful.

Students will:

  • Demonstrate mastery of grade-level standards.
  • Read deeply in the theme at their independent reading levels.
  • Write daily in a variety of formats.
  • Acquire technical vocabulary.
  • Develop problem-solving and critical thinking skills.
  • Draft, revise, edit, publish, and present a final project.

For more information download our slick for RESEARCH LABS® (PDF) and Customizable Curriculum Framework (PDF).


Kindergarten RESEARCH LABS®

Kindergarten RESEARCH LABS® is a comprehensive emergent reader curriculum built on Texas Essential Knowledge and Skills for reading and research-based best practices in science inquiry and early literacy. Each day’s lesson plan is built around one key life science concept and an integrated framework of standards in language arts and science inquiry. Available in English and Spanish.

For more information download our slick for Kindergarten RESEARCH LABS (PDF).

TEKS Leveled Libraries

More than 100,000 titles from 220+ publishers have been reviewed by our team of reading specialists and librarians to create more than 1,000 hand-selected collections balanced for:

  • Fiction and nonfiction
  • Male and female interest
  • Ethnic group representation
  • Science, social studies, and literature
  • Educational and entertainment value
  • Age-appropriateness

For more information download our slick for Leveled Libraries (PDF) and Spanish Leveled Libraries (PDF). TEKS Leveled Libraries

TEKS Summer Semester


SUMMER SEMESTER is an intensive reading intervention using close reading of informational text with nonfiction writing to develop academic vocabulary, background knowledge, and test preparedness and proficiency.

Project-based learning stimulates and challenges students to read like detectives and write like reporters. Teachers get a day-by-day, easy-to-follow Instructional Framework and the TEKS-based Independent Reading Level Assessment® (IRLA), making formative assessment possible—every day. It all adds up to success for students AND teachers.

For more information visit the SUMMER SEMESTER landing page or download our slick for SUMMER SEMESTER (PDF) and Summer Solutions (PDF).

TEKS Summer Semester

Students will:

  • Read deeply from the leveled Science or Social Studies libraries
  • Read broadly from a leveled library of literary text
  • Choose their own topics to research
  • Perform daily structured writing tasks
  • Self-publish nonfiction books
  • Expand their vocabulary and content knowledge

Professional Development

ARC Executive Coaches work side by side with district and school leaders as they organize all stakeholders around critical evidence of student learning. Additionally, ARC Coaches work with teachers in their own classrooms as they integrate the TEKS into their daily practice. All ARC professional development is structured around a gradual release model.

  • On-Site Workshops and Institutes
  • Grade Group Meetings
  • Fishbowl Demonstration Lessons
  • 1:1 Support, as Needed
  • Status Checks

For more information download our slick for Job-Embedded Professional Development (PDF) or visit the TEKS Colloquia landing page.

Contact Us

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1-866-810-BOOK (2665)

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Measurement Incorporated IRLA Study

Measurement Incorporated IRLA Study Measurement Incorporated IRLA Study

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