Geometry - What are Quadrilaterals?

All closed figures with 4 sides and 4 angles are QUADRILATERALS.

 

There are different types of Quadrilaterals: 

• Parallelogram
• Rectangle
• Square
• Rhombus
• Trapezoid

Students might enjoy watching a musical video which explains the different types of quadrilaterals. (Click on the link below.)

~ Know Your Quadrilaterals


Another video that also explains the similarities and differences between the different types of quadrilaterals is found on the Scholastic Study Jams website.  (Click on the link below.)

~ Classify Quadrilaterals

After watching the videos, students could sketch and label pictures of the different types of quadrilaterals in their math notebooks.

Students could also check out their environment and find objects that are shaped like quadrilaterals. How many can they find? How many are squares, rectangles, trapezoids, etc.?

Thanks for visiting. Have fun with quadrilaterals. 

Marcia :) 

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Geometry - Types of Lines

Our environment is filled with different types of lines from nature.

Here are some ideas to help children learn about the different types of lines.


~Click on the link below to view a slide show that explains the different types of lines.

    Scholastic Study Jams: Types of Lines


~ Children can practice making the different types of lines with simple, inexpensive manipulatives such as the following: 



 Pencils 

Horizontal Lines

Vertical Lines

 Popsicle Sticks

Top: Parallel,   Middle: Intersecting,   Bottom: Perpendicular

Small Craft Sticks

Top: Vertical,   Middle: Horizontal,   Bottom: Diagonal

Tooth Picks

Pipe Cleaners

Pretzels

Twizzlers/Licorice 

Horizontal and Vertical

Parallel and Intersecting

~ Students can look for examples of the different types of lines at home, school, or even outdoors in the environment. They could tally, count, list, sketch, or take photos of the lines.

~ They could also use old magazines and the internet to find pictures of the different types of lines. They could sort and/or label the pictures and use them to make a book, poster, or slide show about LINES.

Vertical and Parallel

Diagonal and Parallel

Horizontal and Parallel

Thanks for visiting. Have fun with lines!
Marcia :)

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How to Make Paper Geometric Shapes Video

Making different geometric shapes is fun but it can can be difficult for some students.

In this video, students will learn the steps and some tricks to make the following shapes from a square.

• triangle
• pentagon
• hexagon
• rectangle
• circle
• octagon
• heptagon

~ Click here: How to Make Paper Geometric Shapes

Have fun!
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2D Shape People Crafts Activity

Math and Arts & Crafts Activity


Children might enjoy making these cute SHAPE PEOPLE as they learn about 2-D Shapes.

Olivia Octagon

Materials

• Construction Paper
• Pencil
• Scissors
• Glue or Stapler
• Google Eyes (optional)
• Marker or crayons

Directions

• Decide which 2-D shape(s) to create.
• Draw or trace the shape onto construction paper. (This is the body.)
• Recreate the shape 4 more times in a smaller version (for hands and feet).
• Cut out the 5 shapes.
• Cut 4 strips of paper (approximately 1 inch wide).
• Accordian fold the strips. These will be the arms and legs.
• Use glue or stapes to attach all the pieces.
• Draw facial features and/or add google eyes.
• Hang on wall, bulletin board, etc.
• If desired, punch a small hole at the top and hang your shape person from the ceiling with a string, yarn, etc.
• Children (or adults) can label the shapes (octagon, pentagon, etc.).
• Students can use alliteration to give names to their shapes. (Examples: Olivia Octagon, Tommy Triangle, Paula Pentagon)

Cecil Circle

Possible shapes to use:

• circle
• triangle (equilateral, isosceles, scalene)
• quadrilateral (square, rectangle, parallelogram, trapezoid, rhombus)
• pentagon
• hexagon
• heptagon
• octagon
• nonagon
• decagon

Other math vocabulary which may be included in this activity

Similar: when figures have the same shape but different size (large and small shapes)
Congruent: when figures have the same shape and size

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What is a Nonagon?

A Nonagon is 2-D shape and a polygon. 

Like other polygons it is a closed figure. A nonagon is not a common polygon! In fact a nonagon has 9 sides, 9 angles and 9 vertices (corners). 

Here are links to a cute musical video to help kids remember the name of this uncommon polygon plus the lyrics to the song. Enjoy!


   ~ TMBG: Here Comes the 123s Nonagon



    ~ Nonagon Lyrics

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Having Fun with Circles - A Math Trick for Kids

Having Fun with 2-D shapes.

Can a quarter (a circle) fit through a hole the size of a dime (a circle) ???

 Teach this trick to the kids then they can amaze their friends!

Materials

• dime
• quarter
• paper
• pencil
• scissors

Directions

• Trace around a dime.
• Cut out the inside of the circle.
• Try to slip the quarter through the hole without tearing the paper. 

Are you ready for the solution?

Solution

• Fold the paper across the diameter (center) of the circle.
• Now sandwich the quarter between the halves of the circle.
• Pull the sides of the paper upright.
• The quarter will slip through!!!

Why?

• The circle turned into an ellipse!  That made the diameter of the hole Bigger!

I got this trick from a fun math book!

 
Real-World Math for Hands-On Fun! (Williamson Kids Can Books)

by Cindy A Litterfield

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Attribute Blocks - Shapes for Learning Math Concepts

Attribute Blocks are a set of Geometric Shapes.

Attribute Blocks come in 5 shapes:

• circle
• triangle
• square
• rectangle
• hexagon

Each shape comes in a large and small size.

Each large and small size comes in 3 colors: red, yellow, and blue.

Attribute blocks are very versatile manipulatives for kids and can be used in many areas of math to teach many different math concepts including:

• sorting
• comparing/contrasting
• patterning
• classifying
• identifying
• sequencing

Here are links to Attribute Blocks Resources.

Teacher Vision
   Attribute Shapes Printable (for Grades 1-5)

Math Forum
Introduction to Algebra for Primary Students 

Here are 2 links to Online Geometry Games Using Attribute Blocks.

OnlineMathLearning.Com

      Attribute Blocks

OnlineMath Learning.com

     Attribute Trains

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Amazon has a selection of  Attribute Block  Resources.