OGS.0.SEP
Open Global Science Standards 2026™ · Pre-K
Scientific Inquiry, Quantitative Observation, and Data Representation
GradePre-K
SubjectScience
Levelstrand
Child standards (6)
- OGS.0.SEP.1Develop foundational scientific inquiry skills with precision and rigor by engaging in systematic exploration, manipulating investigative tools, and stabilizing early domain-specific vocabulary.
- OGS.0.SEP.2Count, quantify, and orally articulate numerical values in scientific observations, reciting number sequences up to thirty and using verbal counts to establish cardinality.
- OGS.0.SEP.3Record, read, and communicate quantitative observations and experimental data using conventional numerals (up to 10), tally marks, and representational symbols or sketches.
- OGS.0.SEP.4Estimate, compare, and construct collections of specimens or scientific objects using numerical counting and direct non-numerical matching procedures to test equivalence.
- OGS.0.SEP.5Demonstrate understanding of conservation of quantity, recognizing that the total count of a sample remains constant regardless of spatial rearrangement or physical disposition.
- OGS.0.SEP.6Analyze and manipulate quantities within natural samples by composing, decomposing, and calculating unit increments (n+1) and decrements for sets up to ten items.