Progressively Incorrect

S5E04: Marcie Samayoa on NGSS and Explicit Science Instruction

Sep 28, 2025
Joining the conversation is Marcie Samayoa, a passionate high school chemistry teacher and science-of-learning advocate behind the blog Scientists in the Making. She shares her journey of making science education equitable and engaging. Marcie explains how she translates cognitive science into classroom practices, emphasizing explicit instruction for complex concepts. She discusses the balance between inquiry and foundational knowledge, offering strategies for effective labs and reducing misbehavior through structured teaching. Her insights highlight the importance of supporting novice teachers in implementing evidence-based instruction.
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ANECDOTE

From Pandemic Reading To A Teacher Blog

  • Marcie describes her switch to evidence-based teaching after discovering cognitive science during the pandemic.
  • She launched the Scientists in the Making blog to share what she learned so other teachers wouldn't have to do the same self-study.
ADVICE

Design Lessons To Reduce Cognitive Load

  • Chunk content, pair visuals with words, and reduce cognitive load when presenting new material.
  • Use frequent retrieval (brain dumps, mini whiteboards, turn-and-talks) to strengthen memory and check understanding.
ADVICE

Sequence Lessons: Preview, Retrieve, Model, Practice

  • Preview with relatable examples, prompt retrieval of prior topics, then model and guide practice step-by-step.
  • Use mini whiteboards for single-step checks and pull small groups for targeted interventions during independent practice.
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