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External reviewer finds no negative effects from River Forest SD 90 math curriculum

Board of Education of School District #90, Cook County, Illinois · April 21, 2026
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Summary

An external evaluation presented April 21 found no negative effects from the District's recently implemented math curriculum and highlighted positive outcomes, particularly in the Desmos components; the evaluator recommended no immediate curriculum changes.

Dr. Duncan Chaplin presented an independent external evaluation of River Forest School District 90's new math curriculum, telling the Board that comparisons to similar districts showed no negative effects from the adoption and that several positive effects were observed, especially in the Desmos curriculum.

Chaplin also reported that the curricula have been cost effective and that, based on available evidence, there was no need to consider additional curriculum changes. Superintendent Dr. Ed Condon introduced Chaplin and the Board discussed the findings at length before thanking him for his work. The minutes record no formal motion or vote tied to curriculum changes.