K. D. v. Downingtown Area School Distri, 904 F.3d 248

K.D., a student with ADHD, dyslexia, low initial IQ score, vision and motor issues, attended Downingtown Area School District from preschool through part of third grade and received multiple IEPs with supplemental learning supports and specialized instruction (including Wilson, later other research-based reading programs).
District implemented successive IEPs (2012–2014) with measurable goals, extended-year services, occupational therapy, vision services, aides/offers, and multisensory reading instruction; parents remained dissatisfied and hired an independent evaluator (Dr. Kelly) who diagnosed dyslexia and criticized the district’s programming.
The district revised K.D.’s IEPs over time, increased baselines/goals, adopted different evidence-based reading programs, and offered a one-on-one aide (which parents declined); K.D. was withdrawn by her parents mid-third grade and placed in private school.
Parents sought tuition reimbursement via administrative complaint under the IDEA and asserted disability-discrimination claims under the Rehabilitation Act and ADA; the hearing officer found the IEPs adequate and provided a free appropriate public education (FAPE).
The district court affirmed post-Endrew F., finding the IEPs meaningfully revised and reasonably calculated to enable appropriate progress; this appeal challenged those conclusions and whether Endrew F. changed the Third Circuit standard.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether Endrew F. implicitly overruled Third Circuit meaningful-benefit precedent	Endrew F. requires a stricter standard than Third Circuit’s meaningful-benefit test	Endrew F. did not overrule Third Circuit; standards are consistent	Endrew F. did not overrule Third Circuit; standards are aligned
Whether Downingtown’s IEPs provided FAPE (appropriately calculated to enable progress)	IEPs were insufficient; district failed to use appropriate research-based interventions and K.D. did not make adequate progress	IEPs were individualized, revised, evidence-based, and reasonably calculated to enable progress given K.D.’s circumstances	IEPs were adequate; district complied with IDEA and provided FAPE
Whether the district court abused discretion by denying supplementation of the administrative record	New AIMSweb data, interrogatory answers, and a Wilson manual were material and should be considered	Proffered evidence was cumulative, minimally relevant, or should have been introduced at admin. level	Denial of supplementation was not an abuse of discretion; evidence was cumulative or untimely
Validity of Rehabilitation Act / ADA claims premised on IDEA failures	District discriminated by not using appropriate, research-based interventions	ADA/Rehab claims mirror the IDEA claim and fail if IDEA claim fails	Disability-discrimination claims fail because they are indistinguishable from the IDEA claim

Endrew F. v. Douglas Cty. Sch. Dist. RE-1, 137 S. Ct. 988 (2017) (IDEA requires an educational program reasonably calculated to enable progress appropriate in light of the child’s circumstances)
Ridley Sch. Dist. v. M.R., 680 F.3d 260 (3d Cir. 2012) (Third Circuit’s meaningful-benefit formulation for IDEA adequacy)
L.E. v. Ramsey Bd. of Educ., 435 F.3d 384 (3d Cir. 2006) (mere more-than-de-minimis progress insufficient; IEP must confer meaningful benefit)
Christensen v. Harris County, 529 U.S. 576 (2000) (guidance letters do not receive Chevron deference)
Skidmore v. Swift & Co., 323 U.S. 134 (1944) (administrative interpretations merit respect to the extent they have power to persuade)