Addition up to 20 | Math for Kindergarten & 1st Grade

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In this lesson, Ramiro invites friends on a seashell adventure to collect and count seashells for a special birthday present—a necklace. Together, they find and tally various seashells, starting with five and ultimately gathering a total of twenty, demonstrating teamwork and basic counting skills. The lesson concludes with the successful creation of the necklace, celebrating their collaborative effort.
  1. How many seashells did we find in total?
  2. What do we want to make with the seashells?
  3. Can you remember how we counted the seashells together?

Welcome to Our Seashell Adventure!

Hello, friends! I’m Ramiro, and today we are going on a fun adventure. I want to make a special birthday present for my friend. A seashell necklace would be perfect! Will you help me find and count seashells for the necklace? Let’s get started!

Finding Seashells

Look around! How many seashells can you see? Let’s count together: one, two, three, four, five. Hmm, that’s not enough for a necklace. Can you spot any more seashells? Yes, there are six more in the sand!

Counting Our Seashells

Let’s count all the seashells we have now. We started with five and found six more. Let’s count them: one, two, three, four, five, six, seven, eight, nine, ten, eleven. We have eleven seashells!

Exploring More

Let’s take a look under that stone. Wow, there are four more seashells here! Let’s add them to our collection. Eleven plus four more makes twelve, thirteen, fourteen, fifteen. Now we have fifteen seashells. Great job!

Finding Even More Seashells

Look over there, near the seaweed strips. There are five more seashells! Let’s add them to our pile. Fifteen plus five more makes sixteen, seventeen, eighteen, nineteen, twenty. We have twenty seashells now!

Making the Necklace

That’s enough seashells to make a beautiful necklace! Thank you so much for helping me find and count all the seashells. We did it together! Bye for now!

  • Have you ever collected seashells or other treasures at the beach? What did you find, and how did it make you feel?
  • Why do you think Ramiro wanted to make a necklace for his friend? Can you think of a time when you made or gave something special to someone? How did it make them feel?
  • If you could make a necklace or a special gift from something you find in nature, what would you use and why?
  1. Seashell Hunt at Home: Go on a seashell hunt in your house or backyard! Use small objects like buttons, pebbles, or pasta shells as pretend seashells. Ask an adult to hide them around a room or garden. Once you’ve found them all, count how many you have. Can you find more than twenty? Try hiding them for a friend or family member and see if they can find them all!

  2. Seashell Necklace Craft: Create your own pretend seashell necklace using paper. Cut out paper seashell shapes and color them. Use a piece of string or yarn to thread them together. Count each paper seashell as you add it to your necklace. How many do you have? Can you make a pattern with the colors?

  3. Counting in Nature: Next time you go for a walk, look for things you can count, just like the seashells. It could be leaves, flowers, or even rocks. Count them out loud as you find them. How many did you find? Try adding more to your collection and see how high you can count!

Here’s a sanitized version of the transcript:

Welcome to Kids Academy! Hey everybody, I’m Ramiro. I need to prepare a birthday present for my friend. A seashell necklace will make a perfect gift! Will you help me find and count seashells for the necklace? Great!

How many seashells can you see? One, two, three, four, five. That’s not enough to make a necklace. Do you see any more seashells? Right, there are six in the sand.

How many shells have we got now? Well, let’s see. We started with five and added six more. One, two, three, four, five plus six more makes six, seven, eight, nine, ten, eleven seashells in all.

Let’s go have a peek under that stone. Great! There are four seashells here. Let’s add them all together. Eleven plus four more makes how many seashells? Twelve, thirteen, fourteen, fifteen. So we found fifteen seashells so far. Good work!

There are five more seashells near those seaweed strips. Now that we’ve found five more, how many seashells do we have in all? Fifteen plus five more makes sixteen, seventeen, eighteen, nineteen, twenty seashells in all.

That’s enough to make a beautiful necklace! Thanks for helping me find and count the seashells. Bye!

This version maintains the original content while ensuring clarity and appropriateness.

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