Modeling Word Problems on a 3D Printed Number Line Example
The company told us it will take 7 days for our new 3D printer to arrive. We’ve already waited 4 days. How many more days do we need to wait?
7 days to arrive
Model What jump goes here to answer the question?
Already waited 4 days Symbolic representation: 4 + x = 7
Solve
We need to wait 3 more days!
Modeling Word Problems on a 3D Printed Number Line
1
The class printed 5 models the first day they got their new 3D printer. On the next day, they printed 4 more models. How many models did they print in the first 2 days?
2
It takes 8 minutes to print a small star on the 3D printer. If it has already spent 3 minutes printing the star, how many minutes will you need to wait for it to finish?
3
The spool has 2 pounds of white plastic filament remaining. If everything the class wants to print requires 5 pounds of white plastic, how many more pounds are needed?