Grade 5-Unit 5-Lesson 12

Materials Math Activity Book Pencil colored pencils (optional)

Follow-Up Work Practice and Skill Builders Reflex Math

Great attitude for math class!

Class Norms

Come to class on time.

Turning on your camera is encouraged!

Use your microphone and chat box to ask or answer questions.

Raise your hand and stay on mute until the teacher calls on you.

Ask questions if you don't understand something.

Try your best.

Be responsible. Be respectful. Be awesome!

Reflex math: Today's "On Your Own" section requires you to log in to Reflex math. Let's try it!

Reflex Math

1. Go to the "On Your Own" section in the lesson. 2. Click on the blue "Launch in New Window" button. 3. Teacher username: kweise 4. Click on "Mrs. Chukoskie's Homeroom" 5. Click on your name. 6. Your password is: your initials5Example: Pusheen Cat - pc5 7. Work on the lesson until you get a green light, or 15 minutes. 8. You will not receive credit for this section unless you finish the session.

Remember: You must follow along with the lesson, and complete the work in the Classkick to receive credit. If you do not complete the Classkick, you must complete the Edio lesson. ** You DO NOT need to complete the Classkick AND the Edio lesson. **

Number Talk

Choose one expression and find the value.

• 1.00 + 0.99 + 0.02
• 1.99 + 0.02
• 1.99 + 0.03
• 1.99 + 0.13

Response: I solved this expression: The value is (tell the answer)

Number Talk

Did you know that, of all seven continents, Asia has both the largest land area and the largest population? The population of Asia is 4.6 billion people, over half of the world's population. The rest of the 3.3 billion people on Earth do not live in Asia.

If the population of Asia is 4.6 billion people and the population of the remaining six continents is 3.3 billion people, how many people live on Earth? Show your work below and put your answer on the line.

Use the Standard Algorithm to Add Whole Numbers

You can use the standard algorithm to add whole numbers.

When adding whole numbers, you MUST line up the numbers based on PLACE VALUE. You add each place value, starting on the right side of the problem.

Use the Standard Algorithm to Add Whole Numbers

Circle the problem that shows the numbers lined up according to place value AND solved correctly.

Use the Standard Algorithm to Add Decimals

You can use your understanding of place value and the standard algorithm to find the sum of two decimals. Use place value and the standard algorithm to add 5.61 + 2.53

To line up decimals by place value, line up your decimal points first!

Use the Standard Algorithm to Add Decimals

Take a look at the three problems. Circle the problem that is lined up according to place value and is solved correctly.

Use the Standard Algorithm to Add Decimals

Circle one of the problems that are incorrect. Explain what mistake was made when solving the problem.

Checking for Reasonableness

When adding (or subtracting), it is helpful to take a moment to decide whether your answer is REASONABLE.

One way to check for reasonableness is ESTIMATING.

Let's round each addend to the nearest whole number to see if our answer is REASONABLE.

6.62 3.74

Math Activity Book page 76

This is page 76 from your Math Activity Book. You may choose how you would like to complete it: 1. You may complete the page in your Math Activity Book, then show it to Miss Weise when you are finished OR 2. You may complete the activity here in the Classkick.

Math Activity Book page 76

It's Almost the End of Class???

Yes, it is! Here is what is next:

1. Complete the exit ticket. 2. Make sure you completed the Classkick. 3. Raise your hand to let me know you completed the exit ticket. 4. WAIT until I call on you and say you can go. 5. Complete the Practice and Skill Builders. You can stay and work on it, or you can work on it on your own. 6. Turn in the entire lesson.

Exit Ticket

Reflex math: Today's "On Your Own" section requires you to log in to Reflex math. Please be sure to stay until the end of class for directions on how to sign in.