Math in Our World: Map Maker

Jack made a map of his neighborhood!

He wrote the addresses on some of the houses, but he doesn’t know the addresses for all of his neighbors.

The map shows that Oak Street intersects Pine Street. The houses on Oak Street are yellow. The house numbers on one side of the street are 38, 40, 42, and blank. Jack's house is number 42. The house numbers on the other side of the street are 37, blank, 41, 43, and 45. The houses on Pine street are red. The house numbers on one side of the street are 70, 80, 90, and blank. The house numbers on the other side are blank, 85, 95, 105.
  1. Use pictures, models, or numbers to show what is happening.
  2. What do you notice? What do you wonder?
  3. What math questions can you ask about this situation? Answer all the questions you can!
  • Think of each street as a number line. Some number lines go across from side to side. Some of them go up and down!
  • Look for a number pattern on Oak Street.
  • Look for a different number pattern on Pine Street.
  • Use the patterns to find the unknown addresses.
  • Show your work to someone else, and explain your thinking. Did they understand?
  • Ask if they have any other questions you can answer!

Make your own map like this one. It might be a map of the houses in your neighborhood or some buildings in your town. If you live in an apartment building, it can be a map of the apartments on your floor. Label the addresses or apartment numbers. Do you notice any patterns? Make a story problem about your map!