Bloomberg
S&P 500 Rises to 4,800 by Year-End, Tallbacken's Purves Says
Jul.20 -- Michael Purves, founder and CEO at Tallbacken, explains his bullish year-end call for the S&P 500 on "Bloomberg Surveillance."
AFP News Agency
CLEAN: India cracks down on sex-selective abortions
CLEAN: India cracks down on sex-selective abortions
AFP News Agency
VOICED: India cracks down on sex-selective abortions
VOICED: India cracks down on sex-selective abortions
Bloomberg
Municipal Bonds: Relative Value Versus Absolute Yield
Dec.11 -- Bloomberg Intelligence’s Eric Kazatsky examines the historical reaction of municipal bonds to Federal Reserve rate decisions and looks at relative value versus absolute yield in the municipal bond market. He speaks with...
New Mexico State University
Atlantean Dodgeball
Develop ratios within sporting games. Class members watch a video about dodgeball and see how coaches compare the scores. Pupils then work with ratios to compare the scores throughout the tournament. Using their knowledge of ratios, they...
New Mexico State University
Bad Date
Get the best ratio for a good date. The class watches a video where dates are rated based on the ratio of words spoken. Pupils then use the ratios in the video along with other given ratios to find equivalent ratios. Finally, they...
TED-Ed
The Physics of Human Sperm vs. the Physics of the Sperm Whale
Here is an unusual comparison: the swimming conditions of a sperm cell and a sperm whale. Introduce your physics class to the Reynolds number by sharing this video comparison during your fluid mechanics unit. Afterward, teach them to...
Khan Academy
Similar Triangles, Similarity, Geometry
Although a rather complicated topic, this video clearly explains the concept of solving problems involving similar triangles. It employs problem-solving to determine whether two figures are similar triangles. In addition, it provides...
Curated OER
More Advanced Ratio Problem-- with Algebra (HD version)
This lesson is a bit more challenging, but Sal provides an excellent step-by-step explanation. He uses of different colors to help learners follow the process for solving this problem. As he solves one problem, he poses another and...
Curated OER
Introduction to Ratios (new HD version)
Sal defines ratios. Then he shows how to write ratios three different ways. This concept is then demonstrated with four examples for finding quantities by using ratios.
Curated OER
Circles: Radius, Diameter and Circumference
Fascinating discussion regarding the origin of Pi accompanies a detailed explanation of how to find the circumference of a circle. Since this is the first installment in a series on circles, the concept of circumference is separated into...
Curated OER
Advanced Ratio Problems
The instructor continues to build ratio problem-solving skills algebraically. The two examples are very involved but are thoroughly explained using algebraic steps.
Khan Academy
Similar Triangles (Part 2), Similarity, Geometry
Building on concepts in the first part of the series on similar triangles, installment number two explores how to find the values for given angles in a triangle. These problems are solved by using algebra and ratios. A step-by-step...
Education Development Center
TV 411 What's Cooking? Salt
Here is a recipe for a practical cross-curricular lesson! Cover unit conversions and ratios for math, the periodic table of elements for science, the difference between sodium and salt and its relation to high blood pressure for...
Education Development Center
What's Cooking? Carbohydrates
Chef Jamika is at it again, highlighting math and science in her cooking demonstrations. In this episode, ratios and fractions are introduced within the main topic of carbohydrates and the direction for making succotash! The general...
Khan Academy
Introduction to Ratios, Ratios, Rates, and Percentages, 6th Grade
Demonstrating the concept of ratios with several simple examples (animals, fruit, girls and boys in class), Sal guides viewers through finding and simplifying ratios. Even those who have difficulty grasping the concept of ratios will...
Khan Academy
Introduction to Geometric Sequences, Sequences, Series and Induction, Precalculus
This video introduces geometric sequences as "a special sequence of numbers where each successive number is a fixed multiple of the number before it." Sal works slowly in the beginning but picks up the pace as he solves word problems...
Khan Academy
SAT Prep: Test 5 Section 3 Part 1
Sal starts a new set of practice SAT problems in this video, starting on page 652 of The Official SAT Study Guide. Problems involve fractions and ratios, simplifying equations, and finding the perimeter of given coordinates on a plane.
Khan Academy
SAT Prep: Test 4 Section 8 Part 2
Young mathematicians will appreciate Sal's careful - yet efficient - methods for solving these typical SAT problems. He takes care to explain problems 8-12, but gets cut off in the middle of problem 12 (to be continues in the next video).
Khan Academy
SAT Prep: Test 1 Section 9 Part 1
With a brand new review session, Sal addresses common skills required to take - and pass - the SAT. He uses problems 1-4 on page 423 of The Official SAT Study Guide to demonstrate solving problems with linear equations, ratios, and...
Khan Academy
SAT Prep: Test 5 Section 9 Part 1
Reasoning through the methodology of a new set of problems from page 679 of The Official SAT Study Guide, Sal shows students how to find the ins and outs of increasingly difficult math problems. He advises them to thoroughly think over...
Khan Academy
SAT Prep: Test 2 Section 6 Part 1
Using The Official SAT Study Guide, Sal begins another review session of eighteen problems, six of which are addressed in this video. The problems involve variables in linear equations, angles and parallel lines, and ratios. One problem...
Khan Academy
SAT Prep: Test 5 Section 7 Part 5
Geometry problems on the SAT are often the most difficult for students to solve, let alone master. Focusing on several geometry-related skills (as well a few algebra problems), Sal makes this lesson a valuable resource for viewers who...
Khan Academy
SAT Prep: Test 7 Section 5 Part 4
Transitioning between algebra and geometry is no problem for Sal as he deftly solves these practice SAT problems. Mathematicians who have a hard time moving between skill sets will appreciate the way that Sal addresses each new problem...