skip to main content

Subtracting Integers

14 minutes 31 seconds

Videos are generally available for preview to non-members as short clips. Limited full-length titles are also available. Log In to view the full length title.

Browse Full-length Non-member Titles
Still image from Subtracting  Integers

Provides classroom activities for middle school math teachers to help students gain a better understanding of subtraction of integers, a skill necessary for success in algebra. Uses manipulatives and a mat board to compute several subtraction problems that require the addition of zero pairs to solve. Shows seventh grade math teacher teaching this lesson using red and blue chips and "convenient zeroes".

Media Details

Runtime: 14 minutes 31 seconds

Request a DVD
Members Only - Apply Now
Woman, standing and speaking to a classroom of children. Caption. It's also a key point when we're doing problem solving.
14 minutes 38 seconds
Grade Level: PT/TT -
Woman speaks towards camera. Caption. Making the students decide, then explain their thinking.
14 minutes 32 seconds
Grade Level: PT/TT -
Woman stands in front of a bulletin board, speaking to an audience off camera. Caption. I want to make sure you get that concept of equal.
14 minutes 30 seconds
Grade Level: PT/TT -
Woman stands behind and instructs 2 teenage boys. Caption. The concept of functions by exploring patterns.
14 minutes 30 seconds
Grade Level: PT/TT -
4 number matrices; first 3 have numbers, the 4th is blank. Caption. To find a pattern in the first 3 Xs.
14 minutes 34 seconds
Grade Level: PT/TT -
People in intersecting line formation on grass. Caption. Students move outside and then create a human graph.
14 minutes 31 seconds
Grade Level: PT/TT -
Still image from: 10 Fat Turkeys
5 minutes 20 seconds
Grade Level: Ps - 5
Person in a science lab. One beaker contains an orange liquid, and one beaker contains a green liquid. Caption: It's orange. That means its pH is 5.
Chemistry: Challenges And Solutions
Episode 10
28 minutes 30 seconds
Grade Level: 10 - 12
Black and white image with words, "The sum of two opposite integers equals zero".
14 minutes 27 seconds
Grade Level: PT/TT -
Black and white still frame of man in glasses looking down at phone with lips parted in mid-speech. Caption. From there, you'll know whether he has enough money.
Algebra
Episode 1
31 minutes 3 seconds
Grade Level: 6 - 8