Texas TEKS 1.13

Science1st GradeOrganisms and environments

TEKS Knowledge Statement (Expectation Cluster)

Organisms and environments. The student knows that organisms resemble their parents and have structures and undergo processes that help them interact and survive within their environments. The student is expected to:

Texas Essential Knowledge and Skills for Science

Cluster contents

Student Expectations in This Statement

1.13 is a TEKS knowledge and skills statement. These are the student expectations under it.

Teacher's field guide

What This Cluster Means

What Students Need to Do

Students name visible animal body parts and explain how each part helps the animal get food, travel, stay safe, or breathe. They draw and order life stages for a bird, mammal, and fish. They also compare young animals with their parents.

What Mastery Looks Like

A student can connect a body part to a specific job, such as webbed feet helping a duck swim. The student can sequence and describe animal life stages from birth or hatching to adulthood. The student can name similarities and differences between a young animal and its parent.

Common Misconceptions

Students may think every animal has the same body parts or that a body part has only one use. They may place life stages in the wrong order or think all animals hatch from eggs. They may also expect young animals to look exactly like their parents.

How to Assess It

Give students a duck photo, shuffled fish life-cycle pictures, and a foal with an adult horse. Ask them to explain one duck structure, sequence the fish pictures, and name one parent-young similarity.

Lesson moves

Ways to Teach It

  1. Let pairs examine animal models, point to visible structures, and sort them by jobs such as swimming, eating, breathing, or protection.

  2. Show a chick and hen photo, then ask students to write or tell two similarities and one difference.

  3. Play a life-cycle relay where teams place bird, mammal, and fish stage cards in order, then explain their choices.

  4. Observe birds near the school and record how their beaks, feet, wings, and feathers help them move and find food.

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Printable 1.13 Worksheet

Preview of the 1.13 printable worksheet

A ready-to-print activity worksheet aligned to 1.13, with an answer key for the teacher on its own page. No account needed.

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

Download the worksheet

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