Oh that equal sign! Russel kindly explains what an equal sign is and what it means. He provides several examples in this super short yet informative video.

Have you ever heard of a literal equation? You might already know of a few! As this video explains, literal equations have multiple variables that often represent known values. Watch the video to learn more!

A definition of the subtraction property of equality, this video could be used to introduce your class to the concept. Complement your lesson, or send learners home with the link to the video for further study.

A quick definition of the subtraction property of equality, this video could be used to introduce your class to the concept. Complement your lesson, or send learners home with the link to the video for further study.

This lesson demonstrates various uses for the most common math symbols. It is 3 of 16 in the series titled "Common Symbols."There is a short video tutorial in addition to mastery questions.

This lesson demonstrates various uses for the most common math symbols. It is 16 of 16 in the series titled "Common Symbols." There is a short video tutorial in addition to mastery questions.

This lesson demonstrates various uses for the most common math symbols. It is 13 of 16 in the series titled "Common Symbols."There is a short video tutorial in addition to mastery questions.