Public learning track
Scientific Questioning, Hypotheses, and Problem Definition
3rd Grade · Science · Open Global Science
5 lessons
Goal
Learners will pose testable questions, formulate clear hypotheses based on observable patterns, and define engineering problems using background research.
Featured Diagrams
Asking Testable vs. Non-Testable Questions
5 lessons
0 of 5 done
- 1Asking Testable vs. Non-Testable QuestionsUp nextStart
- 2Identifying Patterns to Form PredictionsPremiumNot started yet
- 3Writing If-Then-Because HypothesesNot started yet
- 4Defining Engineering Problems and CriteriaNot started yet
- 5Evaluating Credible Science Information SourcesNot started yet
Standards Covered
- OGS.4.SEP.1Open Global Science Standards 2026™ · Science · Level 4 / Grade 3 (Age 8) · Grade 3Pose testable questions, formulate provisional hypotheses and predictions based on observable patterns, define scientific and engineering problems, and evaluate questions using prior knowledge and credible informational resources.
- OGS.4.SEP.5Open Global Science Standards 2026™ · Science · Level 4 / Grade 3 (Age 8) · Grade 3Develop and use physical, conceptual, and digital models to represent systems, phenomena, and prototypes; analyze the advantages and limitations of models (including scale, materials, and fidelity); and iterate prototypes against design criteria.
Curriculum Framework
3rd Grade · Science · Open Global Science
1
5 lessons
Scientific Questioning, Hypotheses, and Problem Definition
Learners will pose testable questions, formulate clear hypotheses based on observable patterns, and define engineering problems using background research.
2
5 lessons
Planning Fair Tests, Variables, and Lab Safety
Learners will design fair test investigations, control variables, write repeatable procedures, and follow laboratory safety protocols.
3
8 lessons
Metric Measurement and Laboratory Tools
Learners will select, use, and calibrate standard scientific tools to collect precise quantitative and qualitative data.
4
7 lessons
Organizing Data, Graphing, and Analyzing Trends
Learners will organize experimental observations into tables, construct graphs, interpret proportional and non-proportional trends, and detect experimental errors.
5
5 lessons
Scientific Modeling, Prototypes, and Engineering Design
Learners will develop physical, conceptual, and digital models, evaluate model limitations, and iteratively improve engineering prototypes.
6
5 lessons
Evidence-Based Explanations, Conclusions, and Discourse
Learners will construct scientific explanations using claims, evidence, and reasoning, communicate findings through multi-modal formats, and participate in collaborative scientific argumentation.