Count by 10s | Place Value for Kids | Khan Academy Kids

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In today’s lesson, students explored the art room and learned about the organization and counting of crayons. They discovered that there are 10 boxes, each containing 10 crayons, leading to a total of 100 crayons, and were introduced to the concept of multiplication as a quick way to find the total number. The lesson emphasized both counting and the fun of coloring with a variety of crayons.
  1. How many boxes of crayons are there on the shelf?
  2. If each box has 10 crayons, how many crayons do we have in total?
  3. What is multiplication, and how did we use it to find the total number of crayons?

Welcome to the Art Room!

Hey there! Today, we’re going to explore the art room and discover something cool about crayons. Are you ready? Let’s dive in!

Finding the Crayons

In the art room, there’s a special shelf just for crayons. On this shelf, you’ll find boxes filled with colorful crayons. Each box contains exactly 10 crayons. Isn’t that neat?

Counting the Crayons

Now, let’s do some counting! There are 10 boxes on the shelf, and each box has 10 crayons inside. So, how many crayons do we have in total? Let’s count together:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100!

Wow! That’s a total of 100 crayons. So many colors to choose from!

The Magic of Multiplication

Here’s a fun fact: when you have 10 boxes with 10 crayons each, you can use multiplication to find the total number of crayons. Just multiply 10 (the number of boxes) by 10 (the number of crayons in each box), and you get 100 crayons. Easy, right?

Now you know how to organize and count crayons in the art room. Happy coloring!

  • What is your favorite color of crayon, and why do you like it so much? Can you think of something in nature or around your home that is the same color?
  • If you had 100 crayons, what would you draw or create with them? Can you describe your drawing to someone else?
  • Have you ever tried counting or organizing something at home, like toys or books? How did you do it, and was it similar to counting the crayons in the art room?
  • Crayon Sorting Game: Gather some crayons and sort them into groups of 10. Count how many groups you have and then multiply the number of groups by 10 to find out how many crayons you have in total. Try this with different numbers of crayons and see if you can always find the total using multiplication!

  • Crayon Art Project: Use your crayons to create a colorful picture. As you draw, count how many different colors you use. Can you organize your crayons by color and count how many you have in each group? Try to multiply the number of groups by the number of crayons in each group to find the total number of crayons used in your artwork.

  • Question Time: Imagine you have 5 friends, and each friend has a box of 10 crayons. How many crayons do you and your friends have altogether? Can you use multiplication to find the answer? Discuss with your friends or family how multiplication helps in counting large numbers quickly.

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