Episode

6 Feb 2023 · 41 min

0:00

In this episode Michael Horn and Diane Tavenner discuss the recent acquisition of the nonprofit assessment provider NWEA (creator of the MAP benchmark test) by textbook giant Houghton Mifflin Harcourt (HMH). They begin by describing the MAP test’s role as an adaptive, three‑times‑a‑year benchmark used in roughly 10,000 districts, noting its lack of curriculum alignment and limited relevance for students, families, and teachers. The conversation then shifts to a broader analysis of why curriculum and assessment are often under‑performing when kept at arm’s length. Horn introduces his "theory of interdependence and modularity," arguing that when two components (curriculum and assessment) are unpredictably interdependent, a proprietary, tightly integrated design is needed for adequate performance; once performance is sufficient, modularity can be introduced to allow affordable customization. They illustrate the theory with real‑world examples: Curriculum Associates’ I‑Ready (highly interdependent), Renaissance’s STAR (struggling to achieve interdependence), the College Board–Khan Academy partnership, and Summit Learning’s own modular‑interdependent system. Both hosts express deep skepticism that the HMH‑NWEA deal will deliver truly integrated, student‑centered solutions, warning that the combined offering may perpetuate opaque, norm‑referenced growth measures that mislead parents, reinforce fixed‑mindset narratives, and erode trust. They also discuss the tension between accountability demands and learning‑focused assessment, the risk of proprietary assessments becoming self‑serving, and the need for third‑party, curriculum‑aligned assessments to restore transparency. The episode closes with personal recommendations (Epictetus’s Art of Living and the Indian film RRR) and a hopeful note that market consolidation could eventually open space for disruptive, more authentic assessment models.

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