Although a rather complicated topic, this video manages to clearly explain the concept of solving problems involving similar triangles. It employs problem solving to determine whether two figures are similar triangles. In addition, it...

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...

Demonstrating the concept of ratios with several simple examples (animals, fruit, girls and boys in class), Sal guides viewers through the process of finding and simplifying ratios. Even those who have a hard time grasping the concept of...

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.

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).

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...

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...

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...

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...

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...

Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...

Work through a word problem with the help of a video tutor. You'll learn how equivalent ratios are just like equivalent fractions. Write a ratio as a fraction, reduce each ratio, then determine if they are the same. It's as simple as that!

Introduce you map scale and ratios lesson with this informative video. A student demonstrates how to properly use a scale on a map, as well as read a topographic map. This is a fantastic video to show during your map unit!

Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...

young scholars investigate the concept of using a ratio in the work of construction and solve problems using real life applications. They read descriptions of how various types of construction professionals use ratios on the job. The...

In this ratios and proportions worksheet, students read each sentence and write the indicated ratio on the blank line. They complete 7 examples.

In this ratios for area and volume worksheet, students solve problems where they find the ratios for problems of shapes dealing with area and volume. Students complete 4 problems.

Here's a clever math learning exercise that has learners measure their hand span, foot length, come up with a ration, then use that information to figure out the hand span, and foot length of basketball giant Shaquille O'Neal. A good...

Young mathematicians study probability. In this math lesson, learners calculate odds, and convert those into percentages of probability. Fractions are also used, making this lesson quite rich in some of the more difficult conversions...

Shaquille O'Neal has huge hands and feet, and learners will use those two measurements to practice collecting and extrapolating data using ratios. They record the measurement of foot and hand span of several of their classmates, then...

Students apply information regarding simple machines along with the math concept "ratios." The teacher introduces the concept that technology is the application of scientific knowledge and mathematics concepts to solve a problem. This is...

Elementary or middle schoolers use ratios to discover some nearly constant relationships between measurements of parts of the human body. They find and record pairs of measurements and determine the relationship between the pairs. Pupils...

Kids complete three different activities to better understand how to identify ratios and then write them in simplest form. Ratios are represented by fraction strips of two different colors. Pupils write what ratio of blue to red is...

Engage scholars in a ratio instructional activity that employs real-world scenarios. Learners will compare the length and width of pictures and use a table to identify ratio patterns. They watch "Math Can Take You Places" and discuss...