Given illustrations or descriptions, students will identify disruptions of the cell cycle that lead to diseases such as cancer.

Given illustrations or partial DNA sequences, students will identify changes in DNA and the significance of these changes.

Given examples, students will recognize the importance of taxonomy to the scientific community.

Given illustrations or descriptions, students will determine the classification of organisms into domains and kingdoms.

Given images, videos, or scenarios, identify and describe the responses of organisms, populations, and communities to various changes in their external environment.

Identify and describe internal feedback mechanisms involved in maintaining homeostasis given scenarios, illustrations, or descriptions.

Given illustrations, students will analyze the flow of matter and energy in food chains, food webs, and ecological pyramids.

Given scenarios, illustrations. or descriptions, the student will compare variations and adaptations of organisms in different ecosystems.

A Tier I life science instructional resource for grade 3 

The focus of this resource is cell homeostasis and, more specifically, osmosis. Students investigate the concept through a virtual lab, recording and analyzing data, creating sketches to represent vocabulary, and discovering the role of aquaporins in water transport through the cell membrane.

This resource provides sample activities for teachers to use in helping students to identify and investigate the effects of increasing and decreasing amounts of light, heat, and sound energy on an object.

This resource, aligned with Chemistry TEKS (5)(C), provides alternative or additional tier-one learning options for students using the periodic table to identify and explain trends.

The learner explores the structure and function of the nucleic acids and enzymes important to the process of synthesizing proteins.

Learners compare a variety of prokaryotes and eukaryotes to determine similarities and differences among and between them.

This resource shows how to observe and describe weather changes from day to day and over seasons.

This resource is intended to use for Tier I classroom instruction.

This resource can be used, in conjunction with best practices, for Tier I classroom instruction.

A resource to be used for Tier I instruction for the introduction of the structure of atoms.

This resource provides instructional resources for Newton's First Law, the law of inertia.

This resource was created to support TEKS IPC(4)(E).