Teacher lesson guides
Teacher-facing Osmia Learning lesson guides with grade bands, classroom goals, activity mechanics, and links to free interactive science lessons.
Five lessons for grades 7–10 that build scientific thinking — observation and inference, variables and fair tests, claim-evidence-reasoning, repeatable procedures, and lab safety — before students start larger content units.
View the intro-to-science sequenceStudents distinguish observations from inferences and use evidence to revise a scientific explanation.
Students identify independent, dependent, and controlled variables while designing a fair experiment.
Students connect claims, evidence, and reasoning in a scientific explanation.
Students explain why precise procedures matter and revise steps so an investigation can be replicated.
Students choose safe lab behaviors, protective equipment, and emergency responses based on the situation.
Students trace energy and population effects through a food web to explain a trophic cascade.
Students explain that carbon dioxide provides carbon atoms plants use to build glucose and plant biomass.
Students model DNA structure and explain how base-pairing rules help DNA copy itself.
Students explain the path from DNA instructions to mRNA messages to protein products.
Students distinguish genotype from phenotype and use a Punnett square to model inheritance probability.