First Grade - Classroom
Catch as Catch Can (40min)
MATERIALSThread, Colored cereal, Ladles, Paper clips, Large tub or bowl
WHAT1. Discuss two different kinds of fishing: Hook and line and net fishing. Show pictures of the two types. Tell students that they are going to pretend to be fishermen and try both methods.
2. Distribute large bowl to each group of 4 with fruit ring cereal 3 in deep.
3. Give each student a jumbo sized paper clip bent into a hook, attached to a thread.

Round 1
4. Students try hook and line fishing. Set a timer for 1 minute. Have students “hook” as many fish as they can.
5. Then try net fishing. using a ladle, scoop us as many fish as they can into their “net”
6. Next students try net fishing. Have students count their two catches and compare.
a. Which method works best for fishermen?
b. Which method is best for fish populations?
c. If they were fishermen, which type would they choose? Record their responses on the chart with green post it.

Round 2
1. For the second round of play, choose one color of “fish” that you will be fishing for. (Any other color of fruit rings students catch incidentally are by-catch)
2. For one minute students try to catch the desired color with their fishing poles.
3. Next they can use the ladle or net to scoop fish. Remind them that they are trying to catch only one color of fish. The other colors are called by-catch.
4. Discuss the methods:
Which method works best for fishermen?
Which method is better for fish populations?
If they were fishermen, would they choose net fishing or hook-and-line fishing?
5. Create a graph to show how many fish of different species they caught in the net. Use the cereal to create a graph like the example.
6. What happens to by-catch fish?
Some tossed back to sea
Some die
Sharks are often by-catch and don’t survive. As a result some shark populations are very low/depleted.
Sources The Shark, Seaworld Teacher's Guide K-3 [PDF download]
Background information
LS2.A Interdependent Relationships in Ecosystems
LS1.B Growth and development of organisms