**DAY 12**

SHAPES AND SYMMETRY

SHAPES AND SYMMETRY

On the 12th day of math review, my teacher taught to me...

11 - Lines and Angles

10 - Protractors and Angles

9-Reading Graphs and Data

8- Perimeter and Area

7 - Customary and Metric

6 - Fractions times whole numbers

5 - Add and Subtract Fractions

4 - Fractions and Decimals

3 - Traditional Algorithms

2 - Place Value and Whole Numbers

1 - And what the operations mean

Shapes and Symmetry

**POLYGONS**

Is this a polygon?

What makes something a polygon?

1 - All sides straight

2 - Closed figure

3 - No "extra" lines

4 - No overlapping lines

**Naming Polygons**

How many sides?

triangle

quadrilateral

pentagon

hexagon

octagon

T

R

I

A

N

G

L

E

S

Think back to our three types of angles... what are they?

ACUTE

RIGHT

OBTUSE

This is an acute triangle. All it's angles are acute.

This is a right triangle. It has one angle that is a right angle.

This is an obtuse triangle. It has one angle that is obtuse.

**QUADRILATERALS**

A quadrilateral has FOUR sides.

Name these quadrilaterals.

And can you tell me what is special about each?

Which of these shapes have TWO pairs of parallel lines?

Which have ALL equal sides?

Which have ALL right angles?

Which of these has ONLY ONE pair of parallel sides?

Name these shapes.

Picture time!!

Draw me a...

acute

triangle

obtuse

triangle

right

triangle

What do all these pictures show?

sYMMETRY!!

Is this a line of symmetry?

Draw a figure with ONLY ONE line of symmetry.

Draw a figure with FOUR lines of symmetry.

**Now you're ready to**

ROCK THIS TEST!

ROCK THIS TEST!