Minus-minus, plus-plus, or is integer subtraction actually figureoutable? In this episode Pam and Kim use a Problem String to build real understanding of integer subtraction.

Talking Points:

• The importance of having multiple contexts
• Seeing the negative symbol as "opposite of"
• Using distance
• Understanding takes time, but is so worth it!

See Episodes 181-183 for more about Integer operations.
See Ep 242 for more information on Integer Multiplication

Check out our social media
Twitter: @PWHarris
Instagram: Pam Harris_math
Facebook: Pam Harris, author, mathematics education
Linkedin: Pam Harris Consulting LLC