Improving Student Mathematics Performance in Three Distinct Middle Schools - Technical Report of Year 1 Implementation

Oct 15, 2026

Technical report documenting Year 1 implementation of an instructional research effort aimed at improving student mathematics performance in three distinct middle schools. The report addresses persistent achievement gaps highlighted by NAEP findings, notes limitations of current middle-school mathematics interventions for students with mathematics learning disabilities or difficulties, and focuses on targeted development of rational number sense and algebraic reasoning. The study frames two core misunderstanding areas: equal sign meaning and variable meaning, linking these to success in algebra through predictors and prior research.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages45

Reading Time1 h 53 min

AccessFree to download

Introduction

Method

Results

Summary

References

Appendix A

Appendix B

Improving Student Mathematics Performance in Three Distinct Middle Schools: Technical Report of Year 1 Implementation 2022 Madhavi Jayanthi Robin Schumacher Samantha Wavell Joseph Dimino Russell Gersten Instructional Research Group This project was funded by the U.S. Department of Education (Grant No. DRLH326M170003) . Copyright © 2022 Instructional Research Group. Not for reproduction, distribution, or use without permission from Instructional Research Group. Preferred citation is: Jayanthi, M. , Schumacher, R. , Wavell, S. , Dimino, J. , & Gersten, R. (2022) . Improving student mathematics performance in three distinct middle schools: Findings from a model demonstration grant. Los Alamitos, CA: Instructional Research Group. To download a copy of this document, [visit](visit www.inresg.org)[ ](visit www.inresg.org)[www.inresg.org](visit www.inresg.org). Author Note The authors would like to thank Amber Wang and Velette Bozeman for analyzing the data; and Jennifer Wong and Christopher Tran for assisting with the research and preparation of the report. Table of Contents Introduction ...................................................................................................................... 5 Method ........................................................................................................................... 14 Results ........................................................................................................................... 26 Summary ........................................................................................................................ 36 References ..................................................................................................................... 38 Appendix A..................................................................................................................... 44 Appendix B..................................................................................................................... 45 Introduction Data from the 2019 and 2022 National Assessment of Education Progress (NAEP) suggest that students performing below grade level in elementary school continue to fall further behind their peers in middle school, widening the achievement gap in mathematics for these students (NAEP, 2019, 2022) . In 2019, those who performed at the 10th percentile demonstrated significantly weaker performance than a decade ago and the performance of students at the 25th percentile remained stagnant. The 2022 data show learning loss for all students, no doubt due to the COVID-19 pandemic, and still demonstrate a widening gap between lower-and higher-performing students from 4th to 8th grade. These data demonstrate that mathematics intervention in middle schools, in its current form, is not working to boost outcomes for students with mathematics learning disabilities (MLD) or mathematics difficulties (MD) . Addressing this achievement gap and helping students prepare for algebra, a critical gateway to higher-level high school mathematical courses, graduation, college entrance, and success in many high-paying vocations (National Mathematics Advisory Panel [NMAP], 2008; Vogel, 2008), is a priority. Misunderstanding abstract concepts associated with rational number sense has been shown as one of the critical areas of mathematics responsible for the achievement gap for students with MLD (Torbeyns et al. , 2015) . In research by Mazzocco and Devlin (2008), findings indicated that 8th-graders with MLD performed significantly worse than their peers on rational number sense. They were far less accurate in (a) naming decimal fractions,(b) knowing which fractions were equivalent (e.g. , were unable to indicate whether .75 and "! are equivalent), and (c) ordering fractions and/or decimals by magnitude. They also tended to make little progress in this domain during the course of middle school. The importance of this de

FAQs

What problem does the Year 1 implementation address?

It targets the persistent mathematics achievement gap for students performing below grade level, which continues to widen in middle school according to NAEP data and affects preparation for algebra.

Why does the report emphasize rational number sense and algebraic reasoning?

The report explains that misunderstandings in rational number concepts and weak algebraic reasoning are critical drivers of achievement gaps and strongly predict later algebra success.

What are the two critical areas of misunderstanding related to algebraic reasoning?

The report identifies (1) misunderstanding the meaning of the equal sign as representing equivalence and numerical relationships, and (2) misunderstanding the meaning of a variable, which is essential for solving unknowns and making predictions.

Oct 15, 2026

Uploaded by Sophia Brooks