NGSS 3-LS3-1

Science3rd GradeHeredity: Inheritance and Variation of Traits

The Standard

Analyze and interpret data to provide evidence that plants and animals have traits inherited from parents and that variation of these traits exists in a group of similar organisms.

Next Generation Science Standards

Teacher's field guide

What This Standard Means

What Students Need to Do

Students examine pictures, tables, or measurements of traits in related plants or animals. They find patterns showing which traits are shared and how individuals differ.

What Mastery Looks Like

Students use a table, chart, or set of images to identify trait patterns. They cite specific similarities between parents and offspring and differences within a group.

Common Misconceptions

Students may think offspring are exact copies of one parent. They may also confuse inherited traits, such as flower color, with acquired features, such as a torn leaf.

How to Assess It

Give students pictures of two parent dogs and four puppies. Ask them to name one shared trait, one variation, and the evidence in the pictures.

Lesson moves

Ways to Teach It

  1. Give groups parent and offspring plant photo cards to sort by leaf shape, flower color, or stem pattern.

  2. Ask students to write: How can siblings resemble their parents but still look different from one another?

  3. Play Trait Detective by having teams study animal family cards and record shared traits and variations for points.

  4. Compare ears, coat colors, and markings in a litter of puppies using shelter photos and a class data table.

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Printable 3-LS3-1 Worksheet

Preview of the 3-LS3-1 printable worksheet

A ready-to-print activity worksheet aligned to 3-LS3-1, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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Learning progression

Where This Standard Sits

See the whole path on the Life Science progression map.

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