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Place Value 1 - Grade 3 Common Core Standards
By shaunteaches
More practice with New York State sample questions. These should help us think about the work developing around the common core standards
Shape Categories
By Front Row
Discover more Common Core Math at https://www.frontrowed.comUnderstand that shapes in different categories may share attributes and that the shared attributes can define a larger category.Front Row is a free, adaptive, Common Core aligned math program for teachers and students in kindergarten through eighth grade. Front Row allows students to practice math at their own pace - learning advanced concepts when they 're ready and receiving remediation when they struggle. Front Row provides teachers with access to a detailed data dashboard and weekly email reports that show which standards are causing students difficulty, what small groups can be formed for interventions, and how their students are progressing in math.Discover more Common Core Math at https://www.frontrowed.com
Logarithm Rules: Expanding Logarithms | MathHelp.com
By MathHelp.com
To simplify 81 to the ½, remember from our study of rational exponents that an exponent of ½ means that we take the square root of the base. In other words, 81 to the ½ means the same thing as the square root of 81. And the square root of 81 is 9. So 81 to the ½ is 9
Midpoint Formula | MathHelp.com
By MathHelp.com
In this example, we’re asked to find the distance between the points (1, 2) and (5, -1), so we use the distance formula, which states that the distance between two points is equal to the square root of parentheses x2 minus x1 squared + parentheses y2 - y1 squared. Our first point, (1, 2), represents (x1, y1), and our second point, (5, -1), represents (x2, y2). So plugging the given information into the formula, we have the square root of parentheses x2, which is 5, minus x1, which is 1, squared, minus parentheses y2, which is -1, minus y1, which is 2, squared. Next, we simplify inside the parentheses. 5 – 1 is 4, and – 1 – 2 is -3, so we have the square root of 4 squared plus -3 squared. Next, 4 squared is 16, and -3 squared is positive 9, so we have the square root of 16 plus 9, or the square root of 25, which is 5. So the distance between the points (1, 2) and (5, -1) is 5.
Inverse Variation | MathHelp.com
By MathHelp.com
This lesson covers the surface area of a pyramid. Students learn the definition of a prism, as well as the following vocabulary words related to prisms: base, base edge, lateral edge, lateral face, and altitude (height). Students also learn the formulas for the lateral area, total area, and volume of a right prism, and are asked to solve problems using these formulas. Note that the prisms in this lesson are primarily rectangular prisms -- prisms whose bases are rectangles.
Surface Area of a Pyramid | MathHelp.com
By MathHelp.com
This lesson covers the definition of perpendicular lines. Students learn the definition of perpendicular lines and use algebra to find the measures of angles in problems that involve perpendicular lines. Students are also asked to determine whether given information is sufficient to determine if two lines are perpendicular.
Customary Unit Conversions | MathHelp.com
By MathHelp.com
This lesson covers complex numbers. Students learn that a complex number is the sum or difference of a real number and an imaginary number and can be written in a + bi form. For example, 1 + 2i and -- 5 - i root 7 are complex numbers. Students then learn to add, subtract, multiply, and divide complex numbers that do not contain radicals, such as (5 + 3i) / (6 - 2i). To divide (5 + 3i) / (6 - 2i), the first step is to multiply both the numerator and denominator of the fraction by the conjugate of the denominator, which is (6 + 2i), then FOIL in both the numerator and denominator, and combine like terms.
Units of Measurement | MathHelp.com
By MathHelp.com
This lesson covers vertical angles. Students learn the definition of vertical angles and the vertical angle theorem, and are asked to find the measures of vertical angles using Algebra. Students also solve two-column proofs involving vertical angles.