# Under the Sea - Adding and Subtracting

#### Process

Before we start to help Fred the fantastic fish for his party, you will practice your addition and subtraction skills. Make sure to bring and use your math journal to record your addition and subtraction practice. On the first clean page in your math journal, write your name and the title Under the Sea at the top of the page.

1. Watch the video 1: Adding and Subtracting Song below by clicking the play button. At the top of your page in your math journal, write the number 1. Write down what addition means in your own words. Then, write the number 2. Write down what subtraction means in your own words.

2. C
lick and go to the 2: Addition Game with Pictures below. Start the game by clicking the Go button, and then the arrow. For each addition problem, you can move and count the pictures in the box. Click on your answer. To go to the next problem, click the arrow. In your math journal, write down 5 addition problems that you worked on.

3. Click and go to the 3: Aquatic Speedway Game below. Start the game by clicking the Play button. Then, you will pick the bubble that say 2-10. Choose an animal to race with. The game will start with an addition problem at the top of the screen. You will need to click on your answer on the bubbles. You will be able to see which problem, and how many problems you got correct. In your math journal, create and write down 5 addition problems. Each problem should use different numbers.

4. Talk and share with your math pal to see if you and your pal correctly wrote down your addition problems.

5. Click and go to the 4: Snagger's Subtraction Pond Game. Start the game by clicking the Play botton. Then, you will pick the group that says 3-7. Each subtraction problem will be at the bottom of the game. You will click on your answer on the signs. To go to the next problem, Snagger will swim by and change the problem for you. In your math journal, write down 5 subtraction problems that you worked on.

6. Click and go to the 5: Fantastic Fish Shop Game. Start the game by clicking on the Hard button. Choose your background and type of fish tank. Then, click the Start button. The subtraction problems with be at the top of the screen. Start with the problem on the bottom first, and then drop the net into the fish tank with the correct answer. Then you will do the same for the second subtraction problem on the top. To go to the next problem, the customer in the fish shop will say thank you and leave. In your math journal, create and write down 5 subtraction problems. Each problem should use different numbers.

7. Talk and share with your math pal to see if you and your pal correctly wrote down your subtraction problems.

8. Click and go to the 6: Colorful Addition and Subtraction Game. Start the game by choosing and clicking the addition or subtraction sign. Then pick a practice number from the box. To begin, click the Start button in the green paint. For each problem, you will add or subtract to get your answer. Record your answer at the bottom by typing in the correct answer. Then click the Enter button on the keyboard. To play again, click the Reset button in red paint. In your math journal, create and write down 3 addition sentences and 3 subtraction sentences using numbers 0 through 20. Each problem should use different numbers sentences.

9. Talk and share with your math pal to see if you and your pal correctly wrote down your addition and subtraction sentences.

10. You are ready to help Fred with his party! Ask the teacher for the Fred the Fantastic Fish! paper. Follow the directions given on the paper, and complete it by yourself.

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