About the Intervention
TransMath Fractions Intervention is a Tier 2 small-group intervention designed for fifth-grade students performing between the 15th and 37th percentile in fractions. The intervention consists of 52 modified lessons (35 minutes each) delivered 3-4 times per week in small groups of 4-5 students. Lessons cover fourth- and fifth-grade fractions content including foundational concepts (equivalence, magnitude, ordering), operations (addition, subtraction, multiplication, division), and mixed numbers. The curriculum emphasizes consistent use of number lines as the primary visual representation, supplemented by Cuisenaire Rods and area models. Each lesson includes four structured segments: review (5 minutes), strategic explicit instruction (10 minutes), guided practice (10 minutes), and student explanations (10 minutes). Students are supported in providing mathematically correct explanations through multi-step prompt cards and vocabulary cards. Tutors hired by the research team received a two-day training and ongoing coaching throughout implementation.
Statistical Findings
Positive effect: on foundational fractions understanding (TUF-4)
Positive effect: on grade-level fractions understanding (TUF-5)
Positive effect: on fractions procedures
Positive effect: on curriculum-aligned fractions measure
Positive effect: on number line estimation 0-1
Positive effect: on number line estimation 0-2
More Intervention Details
Focus Areas
N/APrograms & Services
Targeted Intervention ProgramDelivery Methods
Face-to-FaceDisability Support
N/ATarget Groups
Student(s)Citation
Dimino, J., Gersten, R., Haymond, K., Jayanthi, M., Karp, K., Schumacher, R., Smolkowski, K. & Spallone, S. (2018). Impact of a Tier 2 Fractions Intervention on Fifth-Grade Students' Fractions Achievement: A Technical Report (ED610306). ERIC. https://files.eric.ed.gov/fulltext/ED610306.pdf.
Study Demographics
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