• Resource ID: PBS411
    • Grade Range: 2–6
    • Subject: ELA & Reading

    PBS Learning Media Reflexive Pronouns and Subjects | No Nonsense Grammar

    Reflexive pronouns reflect the subject of the sentence. A reflexive pronoun is a pronoun that is preceded or followed by the noun, adjective, adverb, or pronoun to which it refers within the same clause.

    • Resource ID: PBS457
    • Grade Range: 3–8
    • Subject: ELA & Reading

    PBS Learning Media Unforgettable Elephants

    In this video segment from Nature, witness the joy an elephant family experiences when a new baby elephant is born. This birth was a celebration within elephant society. 

    • Resource ID: SM0L11
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Scientific Notation

    Given quantitative data students will express and manipulate chemical quantities using scientific notation.

    • Resource ID: R4SCI0004
    • Grade Range: 9–12
    • Subject: Science

    Science icon Protein Synthesis

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

    • Resource ID: R4SCI0006
    • Grade Range: 9–12
    • Subject: Science

    R4 logo Cell Comparisons

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

    • Resource ID: CM3L6
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Nomenclature: Covalent Compounds

    Given descriptions, diagrams, or scenarios, students will write and name the chemical formulas of binary covalent compounds.

    • Resource ID: BM5L7B
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Survival of a Species

    Given scenarios, illustrations or descriptions, the student will describe how long-term survival of species is dependent on changing resource bases that are limited.

    • Resource ID: CM3L2
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Ionic Bonds: Electron Dot Formulas

    Given descriptions, diagrams, scenarios, or chemical symbols, students will model ionic bonds using electron dot formulas.

    • Resource ID: CM2L2
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo The Bohr Model

    Students will understand Bohr’s experimental design and conclusions that lead to the development of his model of the atom, as well as the limitations of his model.

    • Resource ID: SM0L3
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Conservation of Resources

    Given choices of natural resources and lab materials, students will select disposal and recycling methods that best conserve and protect our resources

    • Resource ID: S7M1L2
    • Grade Range: 7
    • Subject: Science

    OnTrack logo Matter and Energy—Food Chains, Food Webs, and Energy Pyramids


    Given scenarios and descriptions, students will be able to diagram the flow of energy through living systems, including food chains, food webs, and energy pyramids.

    • Resource ID: SM0L3e
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Hypothesis

    Given a series of statements, students will determine if statements are testable hypotheses and determine the hypothesis that best fits a given procedure.

    • Resource ID: S7M2L3
    • Grade Range: 7
    • Subject: Science

    OnTrack logo Human Activity in Watersheds

    Given scenarios, descriptions, maps and illustrations, students will be able to model the effects of human activity on groundwater and surface water in a watershed.