Materials and Protective Design
Properties, selection, structures, heating, cooling, safe observation, and evidence.
Open all 20 lessons →GRADE 2 · HUMAN SYSTEMS
Test materials.
Protect systems.
A 36-week integrated course framework. The first 120 daily lessons are fully authored and free: student text, teacher modeling, guided and independent work, games, printables, answer guidance, alternate routes, extensions, and safety limits.
THE YEAR
Nine arcs. Increasing independence with evidence.
Skin, Clothing, and Shelter
Barrier models, sensory dignity, hygiene, protection, material tradeoffs, and design.
Open all 20 lessons →Habitats and Resource Pathways
Biodiversity, plant needs, pollination, seed movement, digestion, place value, and evidence.
Open all 20 lessons →Body Resources and Reliable Choices
Oxygen transport, circulation, food information, culture, access, sources, planning, and defense.
Open all 20 lessons →Microbes, Routes, and Prevention
Scale, scientific images, microbial roles, transmission models, layered prevention, and public information.
Open all 20 lessons →Medicines, Evidence, and Safe Help
Effects and risks, responsibility, refusal, storage, poison help, source evaluation, and safety campaigns.
Open all 20 lessons →Body Signals and Agency
Internal and external signals, consent, trusted help, and emergency communication.
Community Protection
Weather, infrastructure, sanitation, first responders, access, and public decisions.
Investigate, Improve, Teach
Student inquiry, revision, public explanation, peer teaching, and transfer.
DAILY DESIGN
Every lesson produces inspectable evidence.
Fluency, vocabulary, information structure, source comparison, and precise claims.
Operations, arrays, time, measurement, graphs, budgets, and reasoning.
Operational definitions, controlled comparison, replication, uncertainty, and revision.
Build, test, repair, communicate, teach back, and transfer safely.