Links

Online pilot class paves digital path to learning
(by karenwilson527) Instead of opening a thick physics textbook, students in Ruth Still’s college prep physics class at Hershey High School begin class by logging onto a laptop and working on CK-12 FlexBooks
[Location: http://www.pennlive.com/east-shore/index.ssf/2012/01/online_pilot_class_paves_digital_path_to_learning.html]

Cassidy: Don't bet against Neeru Khosla's idea to save our schools
(by karenwilson527) At a time when public school budgets are in tatters and larger classroom sizes are making it tougher for teachers to provide individual help, Khosla's nonprofit CK-12 Foundation holds the promise of a double-barreled solution digital textbooks in primarily math and science, and exercises that are customizable, adorned with videos and other interactive features, and which cost schools nothing.
[Location: http://www.mercurynews.com/mike-cassidy/ci_19794734]

WA Legislature considering K-12 OER Bill
(by karenwilson527) WA Legislature introduced two major bills this year, HB 2336 and HB 2337, to bring open educational resources to K-12 and to create a bold policy by which the ‘default’ of access to educational materials in higher education is ‘open’ rather than today’s ‘closed.
[Location: http://blog.oer.sbctc.edu/2012/01/wa-legislature-considering-k-12-oer.html]

2012 Annual Letter From Bill Gates
(by karenwilson527) Great work is also being done by companies that are thinking beyond simply digitizing textbooks. CK-12 Foundation, Udemy, and Ednovo have great teacher- and community–generated content.
[Location: http://www.gatesfoundation.org/annual-letter/2012/Pages/home-en.aspx#useducation]

CK12 Flexbooks on Properties of a Circle CK12 Flexbooks on Properties of a Circle
(by karenwilson527) "CK12 Flexbooks on Properties of a Circle explains The many parts of a circle include arcs, tangents, segments, and chords. All these parts have various properties and theorems associated with them."
[Location: http://download.ck12.org/studyguide/geometry/properties_of_a_circle.pdf]

CK12 Flexbooks on Arcs And Angles
(by karenwilson527) "CK12 Flexbooks on Arcs And Angles expalins Many angles can be formed by parts of circles, and we can find their measures based on intercepted arcs."
[Location: http://download.ck12.org/studyguide/geometry/arcs_and_angles.pdf]

CK12 Flexbooks on Circles: segments and lengths
(by karenwilson527) "CK12 Flexbooks on Circles: segments and lengths explains Along with angle measurements, circles can be described by segments and lengths. The theorems in this study guide can be useful in solving for chords in a circle."
[Location: http://download.ck12.org/studyguide/geometry/segments_and_lengths.pdf]

CK12 Flexbooks on Pythagorean theorem
(by karenwilson527) "CK12 Flexbooks on Pythagorean theorem explains Why don’t we see mathematicians at the beach very often? They don’t need the sun because they have sine and cosine to give them a tan! If you don’t get this joke, you will after reading this study guide. in trigonometry. The Pythagorean theorem and many trigonometric ratios depend on the properties of right triangles."
[Location: http://download.ck12.org/studyguide/geometry/pythagorean_theorem.pdf]

CK12 Flexbooks on Right triangle similarity
(by karenwilson527) "CK12 Flexbooks on Right triangle similarity explains Right triangles have a lot of special characteristics, and similarity is no exception. Understanding similar right triangles is very useful in geometry and trignometry."
[Location: http://download.ck12.org/studyguide/geometry/right_triangle_similarity.pdf]

CK12 Flexbooks on Trigonometric ratios
(by karenwilson527) "CK12 Flexbooks on Trigonometric ratios explains When given enough information, trigonometric ratios can be used to determine the angle measurements or side lengths of a triangle. Trigonometric functions are used to find the measures of all the sides and angles in a right triangle if given: • Two side lengths • One side length and the measure of one acute angle"
[Location: http://download.ck12.org/studyguide/geometry/trigonometric_ratios.pdf]

CK12 Flexbooks on Inscilbed In circles
(by karenwilson527) "CK12 Flexbooks on Inscilbed In circles explains Inscribed angles are useful to proving certain characteristic of a circle. Memorizing the formulas of an inscribed angle will be useful in geometry."
[Location: http://download.ck12.org/studyguide/geometry/inscribed_in_circles.pdf]

CK12 Flexbooks on Special right triangles
(by karenwilson527) "CK12 Flexbooks on Special right triangles explains Some triangles, called special right triangles, have simple formulas for calculating their side lengths. These include isosceles right triangles and triangles with the measures of 30°, 60°, and 90°. By memorizing these special right triangles, we can solve certain geometry problems faster."
[Location: http://download.ck12.org/studyguide/geometry/special_right_triangles.pdf]

CK12 Flexbooks on Graphs of rational functions
(by karenwilson527) "CK12 Flexbooks on Graphs of rational functions explains Rational functions refer to any ratio of two polynomials. Graphs of rational functions are a way to visually represent equations where the variables are directly, inversely, or jointly related to one another."
[Location: http://download.ck12.org/studyguide/algebra/graphs_of_rational_functions.pdf]

CK12 Flexbooks on Solving Rational Expressions
(by karenwilson527) "CK12 Flexbooks on Solving Rational ExpRessions explains Rational expressions are fractions that contain variables instead of just integers in the numerator and denominator. Just like fractions, rational expressions are a result of dividing the numerator by the denominator. "
[Location: http://download.ck12.org/studyguide/algebra/solving_rational_expressions.pdf]

CK12 Flexbooks on Properties of exponent
(by karenwilson527) "CK12 Flexbooks on Properties of exponent explains When an exponent is a positive whole number, an exponent is a shorthand way to represent large quantities of multiplication. Exponents can represent any value that is multiplied by itself repeatedly (for example, an expression such as 5·5·5·5). Variables can have exponents just like real numbers"
[Location: http://download.ck12.org/studyguide/algebra/properties_of_exponents.pdf]

CK12 Flexbooks on Operations with polynomial
(by karenwilson527) "CK12 Flexbooks on Operations with polynomial explains Monomials and polynomials can contain numbers, variables, and exponents. They can be added, subtracted, multiplied, divided, and factored, just like real numbers. There are a few special products of polynomials that are important to know, such as the product of two binomials."
[Location: http://download.ck12.org/studyguide/algebra/operations_with_polynomials.pdf]

CK12 Flexbooks on Factoring Polynomial
(by karenwilson527) "CK12 Flexbooks on Factoring Polynomial explains Factoring polynomials uses the same concept of factoring integers - we look for simpler monomials or binomials whose product is equal to the binomial/trinomial we’re factoring. Some techniques used in factoring polynomials include looking for common factors and using special factoring patterns. "
[Location: http://download.ck12.org/studyguide/algebra/factoring_polynomials.pdf]

CK12 Flexbooks on Polygon
(by karenwilson527) "CK12 Flexbooks on Polygon explains Polygons consist of line segments connected only at their endpoints. Many types of polygons exist, with varying side and angle measurements. Using formulas, we can find the sum of the interior angles of a polygon."
[Location: http://download.ck12.org/studyguide/geometry/polygons.pdf]

CK12 Flexbooks on Parallelograms
(by karenwilson527) "CK12 Flexbooks on Parallelograms explains there are two main types of quadrilaterals: parallelograms and non-parallelograms. Parallelograms can also be divided into many sub-groups, including rectangles, trapezoids, and squares. Each type of parallelogram has its own unique set of properties."
[Location: http://download.ck12.org/studyguide/geometry/parallelograms.pdf]

CK12 Flexbooks on Trapezoids and Kites
(by karenwilson527) CK12 Flexbooks on Trapezoids and Kites explains all quadrilaterals are parallelograms. Trapezoids and kites are two non-parallelograms with special properties.
[Location: http://download.ck12.org/studyguide/geometry/trapezoids_and_kites.pdf]

CK12 Flexbooks on Bivariate Data
(by karenwilson527) "CK12 Flexbooks on Bivariate Data explains Bivariate data is often represented with scatterplots and line plots. The main reason to display bivariate data in such a way is to find a relationship between the two variables. The relationship is described through the correlation coefficient. Often, transformations on the data must be done so that the correlation coefficient can be used."
[Location: http://download.ck12.org/studyguide/probability-statistics/bivariate_data.pdf]

CK12 Flexbooks on Ratios and Proportions
(by karenwilson527) "CK12 Flexbooks on Ratios and Proportions explain The use of ratios and proportions comes in handy when finding the relationship between two geometric shapes. Ratios and proportions are often an important part of certain properties between two shapes, such as two similar polygons."
[Location: http://download.ck12.org/studyguide/geometry/ratios_and_proportions.pdf]

CK12 Flexbooks on Polygon Similarity
(by karenwilson527) "CK12 Flexbooks on Polygon Similarity explains Have you ever seen siblings who look so alike that one seems to be a miniature copy of the other? Similar polygons follow the same concept of being the same shape but different in size.there are several ways to prove that triangles are similar. Similar polygons also have many properties and relationships that can be used to solve problems."
[Location: http://download.ck12.org/studyguide/geometry/polygon_similarity.pdf]

CK12 Flexbooks on Proportionality relationships
(by karenwilson527) "CK12 Flexbooks on Proportionality relationships explains Proportionality are important in many relationships. The fundamental properties of proportions are useful in geometric proofs."
[Location: http://download.ck12.org/studyguide/geometry/proportionality_relationships.pdf]