Welcome on board! Your job today is to sort out the shipment and put the correct price tag on each item. First, read the number line and write the inequality. Then, find the right board and stick on the price tag. All done? Nice work!

Here's how to read and write an inequality using a number line: Start by looking at the circles on the number line. If there is only one circle, the inequality goes in one direction. If there are two circles, it shows a range of numbers. Next, check if the circles are filled in. Open circles mean the numbers are not included. Filled circles mean the numbers are included. Finally, use what you see, including the number of circles, the direction of the line, and whether the circles are filled in, to decide if the inequality is less than, greater than, less than or equal to, or greater than or equal to. Now you know how it works, grab your pencil and complete your first work order!