Logging Teacher Resources

In this overview video of direct and inverse variation, Sal shows the general form of each equation and its differences. The listener gains an intuitive understanding of the differences by highlighting how the x and y values vary with...

The short example shown in this video starts with a given set of numbers in the domain and the range that represents a function. One needs to map the points on a coordinate plane.

"Equations 2" is the second video in this series. It follows the presentation titled "Simple Equations." This presentation shows how to solve slightly more complicated algebraic equations, like Ax+B=C. Sal uses visuals (like a number...

Introducing the Heronês formula is the main objective of this lecture. Essentially, it describes how to solve a problem. Heron's formula is given, and then a problem is solved. Since the actual explanation of the formula will be given...

This video continues looking at dividing complex numbers by looking at the conjugate of a complex number. The instructor then uses the conjugate to rationalize the denominator of a rational expression with a complex number in the...

In a follow-up to the problem presented in the last video, Sal considers whether other parametric equations move along the same path as the last equations. He shows that taking a multiple of time changes the speed of the position along...

Combining the skills from the previous videos, particularly inequalities and absolute values, Sal works to solve several new sample problems. He encourages watching the video "over and over," which is good advice for mathematicians of...

Sal reviews absolute value equations by taking viewers through a careful and deliberate problem-solving process. Those who didn't thoroughly understand absolute value during class will appreciate Sal's steady and straightforward...

Sal makes a relatable comparison for pupils to understand the universe's relative size. The progression from a man's size to a galaxy's size is explained in terms of each object relative to the next. The multiple objects we can process...

This video, the first in a series on the Pythagorean theorem, introduces the formula for discovering the measurement of a side of a right triangle. The material is introduced and explained in a straightforward and easy-to-understand...

This is a fantastic resource for teachers to have in their tool belts upon entering into the world of using Google Docs in the classroom! It is a reference sheet with step-by-step instructions and graphics for everything from basic...

Variables represent one of the most fundamental features in any programming language. The easy-to-follow explanation given in this video focuses on the difference between variables and values. Specifically, the author looks at how...

Starting with an empty computer screen for a coder can be as intimidating as a bare canvas to a painter or a blank sheet of paper to a writer. Where do you start? If you know what you are trying to build, then you just pick something and...

Start with a basic house created in JavaScript code and practice programming with loops as you add rows of windows, grass, flowers, or trees. How about some apples growing in the trees? You get the idea. Your coding students can let...

Make it rain on your computer screen with this challenging JavaScript programming project. Modify the existing code of one little drop to create a downpour by using arrays and properties of arrays. But why stop there? How about some...

This well-organized lab activity introduces earth science pupils to the greenhouse effect. They will set up two experiments to monitor temperatures in an open jar, a closed jar, and a closed jar containing water. Ideally, you would have...