CK-12 Foundation
Ck 12: Life Science: Hardy Weinberg Theorem
[Free Registration/Login may be required to access all resource tools.] Sometimes understanding how common a gene is within a population is necessary. Or, more specifically, you may want to know how common a certain form of that gene is...
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Ck 12: Life Science: Nitrogen Cycle
[Free Registration/Login may be required to access all resource tools.] Like water and carbon, nitrogen is also repeatedly recycled through the biosphere. This process is called the nitrogen cycle. Learn more about the nitrogen cycle in...
CK-12 Foundation
Ck 12: Life Science: Urinary System
[Free Registration/Login may be required to access all resource tools.] Sometimes, the urinary system is called the excretory system. But the urinary system is only one part of the excretory system. Recall that the excretory system is...
CK-12 Foundation
Ck 12: Statistics: One Way Anova Tests
[Free Registration/Login may be required to access all resource tools.] This Concept demonstrates how to use ANOVA to compare multiple means as pairs of hypotheses.
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Ck 12: Statistics: Two Way Anova Tests
[Free Registration/Login may be required to access all resource tools.] In this Concept, students will learn about the situations, designs, and procedures for two-way ANOVA methods.
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Ck 12: Biology: Human Skeletal System
[Free Registration/Login may be required to access all resource tools.] Introduces the skeletal system by discussing the structure and function of bones.
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Ck 12: Geometry: Quadrilateral Classification
[Free Registration/Login may be required to access all resource tools.] Classifying quadrilaterals by side lengths, angle measures and diagonals.
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Ck 12: Life Science: Recombinant Dna
[Free Registration/Login may be required to access all resource tools.] Recombinant DNA is the combination of DNA from two different sources. For example, it is possible to place a human gene into bacterial DNA. Recombinant DNA...
CK-12 Foundation
Ck 12: Algebra: Shifts of Square Root Functions
[Free Registration/Login may be required to access all resource tools.] Determine how the graph of a square root function shifts as values are added and subtracted from the function and multiplied by it.
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Ck 12: Algebra: Solutions Using the Discriminant
[Free Registration/Login may be required to access all resource tools.] Given a quadratic equation, find its discriminant and use the result to determine the nature of the solutions.
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Ck 12: Algebra: Solving a Matrix Equation
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a matrix equation.
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Ck 12: Algebra: Solutions Using the Discriminant
[Free Registration/Login may be required to access all resource tools.] Learn how to use the discriminant to solve problems and determine the number of solutions to quadratic equations.
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Ck 12: Arithmetic: Percent Equations Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Use the percent equation to find the part, the rate, and the total.
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Ck 12: Arithmetic: Percent Equations Grade 8
[Free Registration/Login may be required to access all resource tools.] Learn how to solve problems involving percentages by writing an equation.
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Ck 12: Arithmetic: Percent Equations Grades 8 9
[Free Registration/Login may be required to access all resource tools.] Learn how to solve problems involving percentages by writing an equation.
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Ck 12: Life Science: Learned Behavior of Animals
[Free Registration/Login may be required to access all resource tools.] Just about all human behaviors are learned. Learned behavior is behavior that occurs only after experience or practice. Learned behavior has an advantage over innate...
CK-12 Foundation
Ck 12: Life Science: Polygenic Traits
[Free Registration/Login may be required to access all resource tools.] Another exception to Mendel's rules is polygenic inheritance, which occurs when a trait is controlled by more than one gene. This means that each dominant allele...
CK-12 Foundation
Ck 12: Algebra: Factorization of Quadratic Expressions
[Free Registration/Login may be required to access all resource tools.] This lesson covers factoring quadratics when the leading coefficient is not one.
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Ck 12: Algebra: Inverse Variation Models
[Free Registration/Login may be required to access all resource tools.] Graph, write, and solve inverse variations.
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Ck 12: Algebra: Inverse Variation Models
[Free Registration/Login may be required to access all resource tools.] Learn how to solve problems involving inverse variation.
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Ck 12: Algebra: Matrix Algebra
[Free Registration/Login may be required to access all resource tools.] This lesson covers simplifying matrix expressions using all the previously learned matrix operations.
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Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] Given the endpoints of a line segment, find the midpoint between them using the Midpoint Formula.
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Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] Learn how to use the midpoint formula.
CK-12 Foundation
Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] Learn how to use the midpoint formula.