Sal works through several problems involving rational and irrational numbers, and shows how to find the difference. This video is a good stepping stone for those who are preparing to take on more challenging algebra work.

Reviewing the last problem from the previous video because he feels that he "rushed it," Sal again explains the concept of ratios as it applies to problem 6 on the practice SAT (page 472 in The Official SAT Study Guide). Additional...

If your math students are having a hard time with graphing and slopes, this video could be a great resource as they prepare for the SAT. Sal takes care in explaining his thought process, making sure where to note different strategies to...

Continuing problem 7 from the previous video, Sal takes students through what he describes as "a common SAT problem" involving geometric lines and figures. Additional problems deal with sequences, cross-multiplication, and measuring...

Sal again makes the SAT look effortless, and yet students will follow his mathematical processes with ease. Problems range in difficulty, from basic algebra equations to more complicated geometric figures.

Spending more than half of the video readdressing the nuances in problem 13 (previously discussed in the last video), Sal ensures that students understand the tricky word problem by going through each of the multiple choice answers....

Have a blast with Sal as he solves these SAT practice questions! He enjoys himself with visualization and combination problems, showing not only how to solve the problems but to see math as a riddle rather than a threat.

This lesson has a number of fun worksheets for a pre-algebra or beginning algebra class. The main emphasis of this lesson is functions, formulas, and looking at square roots. It is the third lesson in a series on solving for unknowns,...

Continuing his theme of solving problems in a timely and correct manner, Sal teaches students that most problems on the SAT are designed to be solved in less than 30 seconds (though he does state that they are given over a minute for...

What is the square root of 100? Sal explains what the square root of 100 is, but he needs a little help explaining why. Note: This concept can be challenging for some. If you are showing this video to your class, it does not stand alone....

It would be difficult to explain how to write the given radical , the square root of 60, in its simplest form. It's not a perfect square so there are several steps required to break it down and get it to its simplest form. Just watch...

Combine the given radical expressions. How? Do they have the same radical? Yes. Then they can be combined. Watch this video as the teacher explains how to combine the terms that can be combined and leave the terms as they are that need...

Sorting fractions, integers, decimals and square roots into sequential order is an active process when you use a gym as your setting. After your class is divided into two groups and provided with number cards, they compete to see who can...

For learners of algebra, this presentation could be of good use. They are coached on the basics of how to calculate square roots and perfect squares, and they are shown the intriciacies of the Pythagorean Theorem. There are many practice...

Exponents, radicals, and radical numbers are the focus of this worksheet. Middle schoolers solve 22 short answer and multiple choice problems, where they simplify exponential expressions, radicals, express numbers in scientific notation,...

Even math contains important informational text. Sixth graders first read information describing the meanings of the word square. Then they put their understanding to the test by completing 5 different problems. 

Learners examine a Babylonian clay tablet and the mathematics found on it as a catalyst to investigate a variety of mathematical ideas. They work with prime numbers, classify numbers as whole, integer, rational, or irrational and use...

Worried about the MTEL? Never fear, Sal is here! Designed for adults who are seeking their teaching credentials in Massachusetts, this series of videos guides future teachers through a practice test for the Math MTEL. The useful...

Subtract the given radicals. Not so difficult really! If the radicals are like terms, then it's as simple as combining the coefficients. Yes, it's really that simple.

Radicals , radicands , square roots, perfect squares, and subtracting? Sounds complicated, especially because the radicals are not the same in this problem. So, there's a lot of math work to do here. Watch this video to find out how to...

A narrator shows us what some basic graphs are and the equations that produce certain graphs. He does not actually explain how to graph but simply shows different types of graphs.

In this algebra worksheet, students solve 10 equations for the given variable. Each problem involves numbers under a radical sign.

Eighth and ninth graders solve and complete 6 different types of word problems. They use their knowledge to solve a number of word problems involving exponents, square roots and scientific notation and use a calculator to perform the...

Students explore the concept of estimating square and cube roots.  In this estimating square and cube roots lesson, students are given the area of a square object and must determine the sides.  Students solve word problems involving...