Number Flip Fun: Explore Swapping Numbers

Lesson Plan - Get It!

Audio:

• Do you want to know a special math secret?

When you switch the order of numbers when adding, the total stays the same. It doesn't matter which number comes first!

Look at these toys.

• Which would you play with first?

If you play with the teddy bear first and then the truck, or switch and play with the truck before the teddy bear, you still have just as much fun.

• Guess what?

Numbers work the same way.

Watch this video to learn more about adding numbers in any order.

• How cool is that?

The order of numbers does not change the sum.

• Are you ready to give it a try?

Use these flashcards to find the sum of the numbers.

• Did you get them both right?

When you add 1 and 2, you get 3. When you switch the order, adding 2 and 1, you still get 3.

It's' just like stacking blocks. Whether you put the red or blue blocks first, the tower is still the same height!

• Now, what happens when you add one to any number?

That's right! You get the next number.

Adding one is a fun and easy way to make any number bigger.

Adding one is like adding one more scoop of ice cream to your cone. If you already have one, you now have two delicious scoops.

• Ready to learn another secret?

Great!

• Did you know using a number line is another fun way to add one to any number?

A number line is like a special path where numbers live!

Check out this video to learn how to use a number line to add to any number.

Yay! Now you know how to add using a number line.

A number line helps you see how numbers work, which makes math even more exciting!

Pretend that your little fingers can hop like a rabbit.

Use the number line below to help your rabbit hop from one number to the next.

Find the number 4 on the number line.

Hop forward 1 spot.

• Which number did you reach?

Yay! You reached the number 5!

Remember, when you add on the number line, you always move forward to the right.

• Are you ready to practice?

Fantastic! Use the number line above to help your rabbit hop to the sum.

• Did you get them all right?

Great work!

• Did you notice how two questions asked the same problem but with the numbers in a different order?

That is the special math secret!

Even though the numbers were switched, the answer stayed the same!

Now you know how to add numbers in any order and make numbers bigger by adding one.

You did a fantastic job!

Head to the Got It? section to show how well you can rock these problems.