x Number Lines (Horizontal) Number Lines (Vertical) Adding Integers Distance / Vector Addition is modeled as putting a at the first Model second vector’s tail head and finding where the second head vector’s vector’s extends to. 3 + -4 = -1 Subtracting Integers Subtraction can be thought of as comparing the two vectors p, and q, by putting both tails together (starting each from zero) and asking the one extend a vector from the question: “How would head of p to the head of The length and direction of that q?” vector would be the result of the subtraction. 3 - -4 = 7
x Number Lines (Horizontal) Number Lines (Vertical) Distance / Vector Model Adding Integers Addition is modeled as putting a second vector’s tail at the first vector’s head and finding where the second vector’s head extends to. 3 + -4 = -1 Subtracting Integers Subtraction can be thought of as comparing the two vectors p, and q, by putting both tails together (starting each from zero) and asking the question: “How would one extend a vector from the head of p to the head of q?” The length and direction of that vector would be the result of the subtraction. 3 - -4 = 7
6th%20Grade%20Unit%203%20Plan.docx