A picture of Olin. My Mississippi Map Turtle.To figure out the number of Mississippi Map Turtles along a tributary of the great Mississippi River, herpetologist have begun to record and mark the map turtles they find. Last year herpetologist caught and marked 80 turtles. Then, they caught 30 more within a time frame of 6 months, and it is found that 10 of those are are marked. Estimate how many map turtles are in the river.
First lets set this problem into two ratios that are equal to each other.
X turtles = 80 turtles
30 marked turtles 10 marked turtles
Now we simply cross-multiply.
X * 10 = 30 * 80
Now we divide both sides by 10.
X= 30(80)
10
X= 240
The estimated number of Mississippi Map Turtle is 240.
Here's a Link if your interested in learning more about simple probability.
Wow! You are definitely a blogger aren't you? So adorable! I love how you made up examples by using animals or items around you! I can come to your blog anytime I want a lesson plan on probability! On one of your posts, I saw that you defined words before going through the problem. That is how it should be taught! Vocabulary is just as important as learning to solve a problem. You need both to get the job done! I am going to come up with situations that my students would be interested in to make up math problems. Being interested in the subject of the problem helps the students be more excited to solve the problem because they actually like what it is talking about. Great job! Loved it!
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