1. 2

    Open-Source Instructional Materials

    • Grade Range: 9-12
    • Subject:

    TEA has contracted with two instructional materials developers to create instructional materials in nine high school courses. These state-developed, open-source materials are provided free of charge to Texas school districts through the Texas Gateway and will be available for the 2017–18 school year and beyond. All products are certified to meet 100% of the required standards (Texas Essential Knowledge and Skills or College Board Learning Standards). Request teacher materials and other ancillaries for OpenStax products by emailing open-sourceinstructionalmaterials@tea.texas.gov from your school email address.

  2. Comparing and Explaining Transformations

    • Resource ID: M8M4L1*
    • Grade Range: 8
    • Subject: Math

    Given rotations, reflections, translations, and dilations, students will be able to develop algebraic representations for rotations, and generalize and then compare and contrast the properties of congruence transformations and non-congruence transformations.

  3. Mean Absolute Deviation

    • Resource ID: M8M4L4*
    • Grade Range: 8
    • Subject: Math

    Given a set of data with no more than 10 data points, students will be able to determine and use the mean absolute deviation to describe the spread of the data.

  4. Generalizing about Populations from Random Samples

    • Resource ID: M8M4L5*
    • Grade Range: 8
    • Subject: Math

    Given a population with known characteristics, students will be able to use a variety of methods to generate random samples of the same size in order to understand how a random sample is representative of a population.

  5. Writing Geometric Relationships

    • Resource ID: M8M3L8*
    • Grade Range: 8
    • Subject: Math

    Given information in a geometric context, students will be able to use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

  6. Solutions of Simultaneous Equations

    • Resource ID: M8M3L9*
    • Grade Range: 8
    • Subject: Math

    Given a graph of two simultaneous equations, students will be able to interpret the intersection of the graphs as the solution to the two equations.