Objective
By the end of this lesson, you will be able to apply arithmetic skills to solve problems related to a Dolphin Tour.
Materials and Prep
- Pencil and paper
- Calculator (optional)
- Knowledge of basic arithmetic operations (addition, subtraction, multiplication, division)
Activities
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Activity 1: Dolphin Count
Imagine you are on a Dolphin Tour and you spot a group of dolphins. Count the number of dolphins you see and write it down. Then, imagine you spot another group of dolphins. Count the number of dolphins in the second group and add it to the previous count. Write down the new total number of dolphins you have seen.
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Activity 2: Dolphin Jumps
Watch a video or read about dolphins jumping out of the water. Estimate the height of a dolphin jump in feet. Write down your estimate. Then, research the average height of a dolphin jump and compare it to your estimate. Calculate the difference between your estimate and the actual average height.
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Activity 3: Dolphin Speed
Research the average speed of a dolphin in miles per hour. Write down the speed. Then, calculate how long it would take for a dolphin to swim a distance of 10 miles at that speed. Show your work and write down the answer.
Fifth Grade Talking Points
- "Arithmetic is a branch of mathematics that deals with numbers and their operations."
- "We can use arithmetic to solve real-life problems, such as those related to a Dolphin Tour."
- "Addition is the operation used when we want to find the total when we combine two or more numbers."
- "Subtraction is the operation used when we want to find the difference between two numbers or when we want to take away a certain quantity from a given number."
- "Multiplication is the operation used when we want to find the result of repeated addition or when we want to find the total of equal groups."
- "Division is the operation used when we want to find how many equal parts are in a given quantity or when we want to share something equally among a certain number of people or objects."