Aim: How can we use a chip model to represent addition and subtraction?
Homework: Txtbk:p.18-19 Problem 1.4 A-E
Do Now: The temperature at your home in the Bronx is 60 degrees F. You take a trip to the North Pole where it is -50 degrees F. How many degrees was the temperature change?
Classwork: We use black (positive) and red (negative) chips to model integer addition problems. We also discussed Black Friday and where it got its name from.
Announcements: There will be a quiz Thursday 9/22/16! Topics will include: comparing positive and negative numbers, ordering rational numbers (including positive and negative fractions/decimals), temperature problems, number line applications, and chip models.