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Texas Education Agency
Texas Gateway: Animal System Interactions
Review over the body systems of the organisms in this tutorial.
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Texas Gateway: Biological Systems: System Organization
This tutorial will investigate the levels of organization from the atom to the biosphere.
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Texas Gateway: Biological Systems: Homeostasis
Study the process of by which humans respond to their environment to reach equilibrium in this tutorial. Learn that feedback mechanisms trigger living things to respond to their environment.
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Texas Gateway: Internal Feedback Mechanisms
A learning module that explores how our body has internal feedback mechanisms to maintain homeostasis.
Texas Education Agency
Texas Gateway: Homeostasis: Ecological Systems
A learning module that investigates how organisms respond to stimulus.
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Texas Gateway: The Bohr Model
Learn about the structure of the Bohr model in this learning module. Learning module includes information on the history, discovery, and practice with the model.
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Texas Gateway: Atomic Theory: Dalton, Thomson and Rutherford
This tutorial will help students understand how Dalton, Thomson, and Rutherford contributed to the model of the atom.
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Texas Gateway: Electromagnetic Spectrum
This tutorial explores using Planck's constant and the speed of light to calculate the wavelength, frequency, and energy of light.
Texas Education Agency
Texas Gateway: Atomic Theory: Electromagnetic Spectrum
This tutorial reviews the electromagnetic spectrum.
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Texas Gateway: Average Atomic Mass
A tutorial describing average atomic mass and how it is calculated.
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Texas Gateway: Lewis Valence Electron Dot Structures
This tutorial investigates how to draw Lewis valence electron dot structures.
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Texas Gateway: Electron Configuration
This tutorial explores electron configuration. Learn about electron configuration through interactive activities, quizzes, and videos.
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Texas Gateway: Nomenclature of Ionic Compounds
Review and practice writing and naming binary ionic compounds, ionic compounds containing transition metals, and polyatomic ionic compounds in this tutorial.
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Texas Gateway: Valence Shell Electron Pair Repulsion
Why does the shape of a molecule matter? Learn about how the shape of the molecule not only determines the molecule's properties but also whether it reacts or not. This tutorial reviews of VSEPR and molecular geometry.
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Texas Gateway: Mole Conversions
This tutorial reviews over lots of concepts including dimensional analysis, scientific notation, significant figures, and mole conversions.
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Texas Gateway: Moles and Molar Mass
A tutorial reviewing mole and molar mass.
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Texas Gateway: How Do We Quantify the Building Blocks of Matter?
Do you have a hard time visualizing the size of the mole? This learning module will provide interactive videos, activities, and videos to help you quantify the building blocks of matter.
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Texas Gateway: Empirical Formula
This tutorial reviews how to calculate molecular formula by giving students video, exercises, and practice.
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Texas Gateway: Balancing Equations
Learn how to balance equations in this tutorial. Tutorial includes videos, interactive activities, and practices.
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Texas Gateway: Ideal Gas Behavior: Dalton's Law
Explore Dalton's Law in this tutorial with videos and practice problems.
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Texas Gateway: Finding Lateral and Total Surface Area
Given concrete models and nets (2-dimensional models) of prisms, pyramids, and cylinders, the student will find and determine the lateral and total surface area.
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Texas Gateway: Formulating Systems of Inequalities
Given a contextual situation, the student will formulate a system of two linear inequalities with two unknowns to model the situation.
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Texas Gateway: Functions and Their Inverses
Given a functional relationship in a variety of representations (table, graph, mapping diagram, equation, or verbal form), the student will determine the inverse of the function.