MATH - January 25-29/21

 This week we are focusing on Identify, create, and analyze single transformations of 2-D shapes (with and without the use of technology). (SS5.7)

Single Transformations of 2-D shapes reflection

Reflection:  When a shape is reflected in a mirror we see a reflection image.  The line segment that joins a point to its image is perpendicular to the line of reflection.  A shape and its image have opposite orientations, or face opposite ways.  A reflection is sometimes called a flip because when a shape is reflected, it is flipped over.

Click on link to practice Drawing Reflections:

•  Drawing Reflections

Practice drawing reflections on a piece of paper.  Take a picture of your drawings and send them to ct.srgopher@gmail.com or text images to 306-307-7443

Single transformations of 2-D shapes rotations

 When we rotate an image, we turn a shape on a point of rotation.  We can turn or rotate the image clockwise or counterclockwise.  The point of rotation will be on one of the vertices of the shape.

Think about the hands on a clock.  When the minute hand moves from the 12 to the 3, it rotates a quarter turn clockwise.

When the minute hand moves from the 12 to the 6, It rotates a half turn clockwise.

When the minute hand move from the 12 to the 9, it rotates a three-quarter turn.

Please click the link below to watch how to rotate objects:

• Show Me

Now that you have seen how to do rotations, on a piece of paper draw a triangle.  Label the vertices A, B and C.  Rotate the triangle a half turn clockwise, and label the vertices on the image.

Draw a square and label the vertices A, B, C and D.  Rotate the square 3/4 turn clockwise and label the image and its vertices.

Draw a shape (not a circle) of your choice. Choose a vertex to rotate your shape 1/4 turn counterclockwise.  Label your image and the vertices.  

Once you have finished, take a picture and email or text the picture to ct.srgopher@gmail.com or 306-307-7443.

Single transformations of 2-D shapes - translations

 A translation is like a slide.  An object slides from one spot to another.  It does not change size, doesn't flip, and doesn't change direction.  It stays exactly the same, sliding from one spot to another.  Think of when you go down a slide on the playground.  The picture below shows examples of translations, or slides.

Watch the video below to see how to translate shapes.

After watching the video, on a piece of paper draw 3 shapes of your choice.  Translate them to a new spot.  Once you have finished, take a picture and email or text the picture to ct.srgopher@gmail.com or 306-307-7443.