NGSS · Life Science · Grades 6–8 (Middle School)

MS-LS4-6 Natural Selection Math & Population Traits

Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.

Kentucky 8-LS4-6 uses the same wording.

Teach MS-LS4-6 with a mystery

The Tuskless Mystery cover
Science Unlocked lesson set The Tuskless Mystery In most elephant herds, only about 2–6 of every 100 females never grow tusks. In Mozambique’s Gorongosa National Park, more than half of the older females have no tusks. Why are so many Gorongosa elephants tuskless? 1 week · $3.00 · Grades 6–8 See what’s inside
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More Life Science standards

MS-LS1-1Cells: Living Things Are Made of CellsPhenomenon: Built From CellsMS-LS1-2Cells: Cell Parts & Organelles ModelPhenomenon: Cell Parts at WorkMS-LS1-3Body Systems & SubsystemsPhenomenon: Systems in SpaceMS-LS1-4Animal Behaviors & Plant Structures for ReproductionPhenomenon: Raising the OddsMS-LS1-5Genetic & Environmental Factors in GrowthPhenomenon: Growing GiantsMS-LS1-6Photosynthesis: Matter & EnergyPhenomenon: Garden in a Bottle