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Math Review of Proportions 150 150 Deborah

Math Review of Proportions

Overview: Number statements that contain proportions are statements that fractions are equivalent. It can easily be shown that 2/4 = 3/6.   If the proportions contain variables, they can be solved like any other number statement.  The solution may just take more steps. What Are Rates, Ratios, and Proportion? The words rate, ratio, and proportion all…

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Determining Genotypes and Phenotypes using Punnett Squares 150 150 Teaching Staff

Determining Genotypes and Phenotypes using Punnett Squares

Overview: Punnett squares are diagrams designed to predict results of classic breeding experiments. They support Mendelian inheritance, as well as the laws of segregation and independent assortment. During meiosis, chromatids are separated such that each gamete receives only one allele. Additionally, different genes are assorted and inherited independently from on another; the probability of one…

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Solving Math Problems: Reading Problems Carefully 150 150 Deborah

Solving Math Problems: Reading Problems Carefully

Overview: It is essential to read a math problem carefully before any other steps can be taken to solve the problem.  The process of reading a math problem carefully includes understanding the meaning of any unfamiliar words or symbols, paying close attention to directions, sorting out any information that is not needed, and determining if…

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Math Review of Angles and Parallel Lines 150 150 Deborah

Math Review of Angles and Parallel Lines

Overview: Angles and the lines that form them are an essential part of geometry.  Understanding the relationship between parallel lines, lines that are not parallel, and the different types of angles within figures is important to determining their measurement. What Are the Relationships Between Angles on a Straight Line? Suppose that three points A, B,…

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Math Review of Converting between Conventional and Metric Systems 150 150 Deborah

Math Review of Converting between Conventional and Metric Systems

Overview: In the United States, two separate measurement systems are used, the conventional or English system and the metric system.  The conventional system with inches, pounds, cups, and quarts, is in use in many aspects of everyday life, in carpentry, and in many trades, while the metric system is used in science, medicine, and many…

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Pedigree: How to determine your genetic lineage 150 150 Teaching Staff

Pedigree: How to determine your genetic lineage

Overview: Pedigrees are visual representations of a family’s genetic history. Each pedigree focuses on one specific gene that is studied by geneticists. There are several benefits of studying a family’s genetic history. By reviewing past generations, scientists can deduce the mode of inheritance for a specific gene. A person can study their family’s pedigree to…

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Math Review of Rational Exponents 150 150 Deborah

Math Review of Rational Exponents

  Overview Rational exponents are an extension of the rules of exponents. They can be solved by applying those rules and often take more than one step. What Is an Exponent? An exponent such as 32 is a direction to multiply 3 by itself twice, such as 3∙3, or 9.  Similarly, an exponent such as…

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How to Prepare a Solution of Proper Concentration 150 150 Teaching Staff

How to Prepare a Solution of Proper Concentration

Overview: When in a chemistry lab or just writing a test, many students struggle with how to create a solution of known concentration. Students find it difficult because they try to calculate the solution in terms of moles, which is a unit that cannot be measured in the lab. There are some easy to follow…

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Math Review of Estimating 150 150 Deborah

Math Review of Estimating

  Overview: Estimation is an important skill in mathematics, because sometimes an approximate figure is needed in everyday life.  Suppose a person is deciding if they have enough money to buy all the items on a shopping list or how many materials will be needed to finish a project.  Types of estimation include rounding up,…

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Newton’s Three Laws of Motion 150 150 Teaching Staff

Newton’s Three Laws of Motion

Overview: Sir Isaac Newton is well-known for his work on creating the three laws of motion based on the theories of previous scientists as well as his own speculations. These 3 simple, intuitive laws lay the foundation for the basics of classical, Newtonian mechanics. The following are Newton’s three laws in more detail: 1. Newton’s First…

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