ClassGaga finds fractions and word problems are biggest math gaps

A two-year ClassGaga analysis of 25 schools found strong mastery in foundational arithmetic but repeated trouble in fractions, rational-number word problems and other concepts that require students to choose a method or interpret answers in context. The brief argues that concept-level tracking can help teachers target instruction more precisely.

Why it matters: - The analysis pinpoints the exact concepts where students stall, giving schools a clearer target than broad subject averages. - Fractions, word problems and other higher-order skills emerged as the most consistent instructional gaps across grades 3 through 7. - ClassGaga says concept-level reporting can turn these results into specific student lists for teachers using Insight360.

What happened: - ClassGaga released Multi-School Math Learning Analysis, a research brief based on 428,082 student and concept records. - The data covered 4,405 students, 1,574 math concepts and 25 schools between Aug. 1, 2024 and June 30, 2026. - Overall recorded mastery across the platform was 81.8%. - The brief measures mastery at the individual concept level, with a mastered record defined as at least 80%. - The analysis spans Grade 1 through Grade 8 content across ten standards-aligned math domains.

The details: - Operations and algebraic thinking led all domains at 87.6% mastery. - Number and base ten followed at 84.1%, and geometry reached 82.6%. - Fractions was the weakest major area at 61.7%. - Fractions showed concern in comparing, converting, multiplying and dividing. - Fraction work appeared among priority needs at every content level from Grade 3 through Grade 7. - Grade 1 content was the strongest level overall at 90.1%. - Grade 4 content fell to 71.2%, and Grade 5 content was 64.1%. - Within number and base ten, identifying place values in Grade 4 content reached 98% mastery. - In the same domain, finding missing digits in Grade 2 subtraction reached 17.2%. - Grade 7 content averaged 76.9%, but word problems with rational numbers were at 13.6%. - Proportion word problems in Grade 7 were at 24.9%. - Four instructional priorities repeated across content levels: fraction representation to operation, choosing a method before calculating, connecting equivalent forms and interpreting answers in context. - Guess and check problems, compensation, estimation, proportions and systems word problems all required a decision before computation and showed low mastery. - Place value conversion, improper fractions and mixed numbers, equivalent expressions and writing a linear function from a table all required students to recognize the same quantity in another form. - Interpreting a remainder in Grade 5 content was 18.7%. - Reading the effect of an outlier in Grade 6 content was 37.6%. - Rational-number word problems were consistently weaker than the procedures behind them.

Between the lines: - The brief argues that a subject average can hide wide variation inside a single domain. - ClassGaga’s example shows how one concept can sit near mastery while another in the same area remains far below proficiency. - The company says the same pattern appeared in a September 2025 research brief drawn from a different group of school sites and a different analytic window. - That earlier brief also found missing-digit subtraction, interpreting remainders, fraction division word problems and finding an original amount after a percent change to be weak spots. - Operations and algebraic thinking was a top strength in both analyses, at 86.9% and 87.6%. - Grade 4 and Grade 5 content were the lowest parts of the content-level profile in both studies. - The repetition across two analyses suggests the findings are durable instructional targets rather than one-year anomalies.

What's next: - The brief points schools toward more explicit instruction on choosing methods, connecting representations and interpreting answers in context. - Worked examples are presented as a likely support for making those decisions visible to students. - Teachers and administrators in participating schools can view the same concept-level detail in real time through Insight360. - The full research brief is available in ClassGaga Impact. - ClassGaga says results reflect performance on its platform during the study window and do not represent the overall ability level of all students at participating schools.