Yechiel Kuperman, marine biologist

STEM Educator Hub

Curriculum-ready materials designed by marine biologist Yechiel Kuperman to bridge the gap between humorous classroom reading and rigorous biological science.

Pinchy the Hermit Crab

Teacher Quick Facts

ParameterQuick Facts
Grade level2–5
Ages7–10
SubjectLife science / ecosystems / reading comprehension
Time30–45 minutes per lesson
IncludesTeacher notes, vocabulary, discussion questions, printable worksheet, answer key
StandardsNGSS-aligned, exact codes listed inside PDF
PrivacyNo student login, no tracking, no child account required
Yechiel Kuperman with students

Chapter-by-Chapter Lesson Plans

Our teacher notes are not just basic summaries. They are complete science guides that map the story’s situations directly to biological truths. Every guide includes discussion starters, key vocabulary, laboratory-style explanations, and hands-on classroom activities.

Designed for NGSS (Next Generation Science Standards) elementary curriculums.

Book-by-Book Teacher Lesson Notes

Book 1 Curriculum

George the Cranky Guppy

STEM Science Companion · Ages 7–10

Focus: Water Chemistry & Osmotic Pressure

Pulls the real science out of Book 1, focusing on how a freshwater fish's body reacts to brackish conditions and the biology of osmotic acclimation.

Key Concepts Explored:

  • Salinity & osmotic pressure
  • Gill function & aquatic respiration
  • Stress response & fish physiology
  • Acclimation & transition protocols
Download STEM Guide (PDF)
Book 2 Curriculum

George and the Mosquito Patrol

STEM Science Companion · Ages 7–10

Focus: Ecology, Food Webs & Adaptations

Maps the biology of mosquito control, exploring insect life cycles, food chains, prey-predator relationships, and specialized hunting adaptations.

Key Concepts Explored:

  • Food webs & trophic levels
  • Mosquito life cycles (larvae to adult)
  • Biological vector management
  • Physics of Archerfish hunting jets
Download STEM Guide (PDF)
Book 3 Curriculum

George Meets the Salt Line

STEM Science Companion · Ages 7–10

Focus: Osmoregulation & Ecosystem Cycles

Goes deep into advanced concepts like internal cellular salt-balance, the beneficial bacteria nitrogen cycle, fluid densities, and scientific recording.

Key Concepts Explored:

  • Osmoregulation (salt/water balance)
  • The Nitrogen Cycle (nitrate & filters)
  • Water density & halocline layering
  • Scientific logging & recording mistakes
Download STEM Guide (PDF)

Comprehension & Vocabulary Quizzes

Dyslexia-friendly reading comprehension sheets built around the stories of George and his friends. Designed to test tracking, word meanings, and retention.

Classroom Posters & Reading Badges

Reward students with printable badges and decorate your classroom with beautiful posters featuring science trivia and designs from the Fishery Farm.

Classroom Posters & Badges Library

Classroom Pack Cover

Classroom Pack Cover

The official Yechiel's Fishery Farm classroom pack cover featuring George and friends.

Reading Badges

Reading Badges

Printable merit badges to reward students as they progress through books 1-10.

Mosquito Patrol Poster

Mosquito Patrol Poster

Educational vector control science poster detailing mosquito life cycles and predators.

Real Scientists Ask Questions

Real Scientists Ask Questions

Inspirational classroom poster encouraging scientific observation and recording mistakes.