2 Dimensional Shapes: Vertices | Math for 1st Grade

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In today’s lesson, we explored various shapes and their corners, known as vertices. We learned that a triangle has three vertices, a rectangle and a rhombus each have four, a hexagon has six, and both ovals and circles have zero vertices. Understanding these concepts helps us appreciate the characteristics of different shapes!
  1. How many corners does a triangle have?
  2. What do we call the corners of a shape?
  3. Can you name a shape that has no corners?

Let’s Learn About Shapes and Their Corners!

Hello, friends! Today, we’re going to have fun learning about some cool shapes and their corners. A corner is where two lines meet, and we call it a vertex. If there are more than one, we call them vertices. Let’s explore some shapes and count their vertices together!

Triangles

First, let’s look at a triangle. A triangle has three sides. Now, let’s count the corners or vertices. One, two, three! A triangle has three vertices. Isn’t that neat?

Rectangles

Next up is a rectangle. Let’s draw a rectangle and count its corners. One, two, three, four! A rectangle has four vertices. Let’s remember that number!

Ovals and Circles

Now, let’s look at an oval. Do you see any corners? No? That’s right! An oval has zero corners, so it has zero vertices. The same is true for a circle. No corners, no vertices!

Hexagons

Let’s move on to a hexagon. A hexagon is a shape with six sides. Let’s count its corners: one, two, three, four, five, six! A hexagon has six vertices. That’s a lot of corners!

Rhombuses

Finally, let’s check out a rhombus. A rhombus has four sides. Let’s count its corners: one, two, three, four. A rhombus has four vertices, just like a rectangle!

Remember!

Remember, a vertex is a corner where two lines meet. If you have more than one corner, you call them vertices. Counting vertices is a fun way to learn about shapes!

Thanks for learning with us today! Keep exploring shapes and counting their corners. See you next time!

  • Can you find some shapes around your home or classroom? How many corners or vertices do they have? Share what you find!
  • Think about your favorite toy or object. What shape is it? Does it have any corners? How many?
  • Why do you think some shapes, like circles and ovals, don’t have any corners? Can you think of any other shapes that might not have corners?
  1. Shape Hunt: Go on a shape hunt around your home or classroom! Look for objects that match the shapes we learned about: triangles, rectangles, circles, and hexagons. Can you find at least one object for each shape? Count the vertices of each shape you find and share your discoveries with a friend or family member.

  2. Build Your Own Shapes: Use craft sticks, straws, or pipe cleaners to create your own shapes. Try making a triangle, rectangle, and hexagon. As you build each shape, count the vertices and say the number out loud. Can you create a shape with more than six vertices? What would you call it?

  3. Vertex Art: Draw a picture using only shapes with vertices. You can use triangles, rectangles, and hexagons to create a house, a robot, or even a rocket ship! Count the total number of vertices in your picture and write the number at the bottom of your artwork. Share your vertex art with the class!

Sure! Here’s a sanitized version of the transcript:

Hello, everyone! Let’s open the worksheet. Don’t forget to like this video and subscribe to our channel. You can find the link to this app in the comments below.

Today, we’re going to be looking at some two-dimensional shapes and their vertices. A vertex is where two straight lines meet to form a corner. Circle the number of vertices in each shape below.

Let’s look at an example first. Let’s check out a triangle. We know a triangle has three sides, but how many vertices does it have?

I see one, two, three corners. So, we can say this triangle has three vertices. Let’s use this strategy of counting corners to figure out how many vertices each of the shapes has on our worksheet.

The first example is a rectangle. Let’s draw a rectangle and count the corners or vertices. I see one, two, three, four corners or vertices. Let’s count the corners on our worksheet rectangle as well: one, two, three, and four. There are four vertices in a rectangle. Let’s circle the number four.

Our next shape is a triangle, just like we looked at before. Do you remember how many vertices a triangle has? If not, it’s okay! Let’s just count again. I see one corner where two lines meet, another corner, and finally a third corner. I think there are three vertices, but let’s just count on our worksheet to be sure: one, two, three vertices. Let’s circle the number three.

Our third shape is an oval. How many sides do you see on an oval? How many corners do you see on an oval? If you said zero, you were right! I don’t see any corners or any sides on this shape. So, for this answer, there are zero vertices or zero corners. That’s true for a circle as well.

Our fourth example is a hexagon. Do you know how many sides a hexagon has? If you don’t, it’s okay! You can count them, and you can do the same for the vertices on this worksheet. Let’s focus on the corners or the vertices. Let’s count the corners: one, two, three, four, five, and six. I think there are six corners or six vertices. Let’s count on the worksheet just to be sure: one, two, three, four, five, and six corners or vertices. A hexagon has six sides and six vertices.

What about our last shape, a rhombus? Well, I know a rhombus has four sides, but does it have four vertices? Let’s count: one, two, three, four. And on the worksheet, there are also one, two, three, four vertices. A rhombus is a shape with four sides and four vertices. Let’s circle four.

Remember, boys and girls, a vertex (or vertices) is a point where two lines meet to form a corner. That corner is called a vertex, and if you have more than one corner, it is called vertices.

Thanks for watching, everyone! We’ll see you next time. Like us and subscribe to our channel, and find links to our apps in the comments below.

This version maintains the educational content while removing any informal or repetitive phrases.

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