Science: Invite students to go on a scavenger hunt around the room, school, or on a neighborhood walk looking for objects that represent a given number. Each student could be given a clipboard and asked to make a list of their discoveries.
Mathematics: Once back in the classroom, construct a bar graph which shows the numbers that were being scavenged. One space is colored in for each item found that represents that number. Use the graph to teach one or more of the following concepts: more than, less than, equal, same as, addition, subtraction. This can be accomplished by having students look at the graph to answer specific questions such as: “Which number has the most? the least? How many would we have to add to the 2's column to make it equal the 3's column?”