1. Focus on

2. Can you spell each word correctly ?

3. Do you know the definition of each word?

4. Essential Question How do we identify geometric shapes?

5. There are many different geometric shapes.

6. polygon polygon – a closed figure made up of three or more line segments.

7. Examples: The following are examples of polygons: The figure below is not a polygon, since it is not a closed figure:

8. irregular polygon irregular polygon- a polygon that has sides of various lengths and angles.

9. parallelogram parallelogram- a shape that has four sides where the opposite sides are equal in length and parallel.

10. parallelogram parallelogram - a four-sided polygon with two pairs of parallel sides. The sum of the angles of a parallelogram is 360 degrees. Examples:

11. rhombus rhombus- a shape that has opposite sides parallel and four sides all of the same length.

12. rhombus - a four-sided polygon having all four sides of equal length. The sum of the angles of a rhombus is 360 degrees.

13. trapezoid trapezoid – a four sided shape with only 2 parallel lines.

14. trapezoid trapezoid - a four-sided polygon having exactly one pair of parallel sides. The two sides that are parallel are called the bases of the trapezoid. Examples:

15. rectangular prism rectangular prism – a three dimensional figure with 6 faces - opposite faces are the same size.

16. quadrilateral quadrilateral- a polygon with four sides and four angles. 90° 90˚ 90° 90 x 4 =360 °

17. quadrilateral quadrilateral - a four-sided polygon. The sum of the angles of a quadrilateral is 360 degrees. Examples:

18. Here is a website to further assist in understanding the vocabulary words http://www.mathleague.com/help/ geometry/polygons.htm

19. Essential Question How many ways can we measure things?

20. Ways to Measure Length Inch Feet Yard Meter Centimeter

21. length length - the longest measure of anything. A ruler helps you measure length.

22. inch inch- a measure of length equal to 1/12 of a foot. A way to measure length. A quarter is about 1 inch. 12 inches = 1 foot

23. foot foot- 12 inches equals 1 foot. Use a ruler to measure length.

24. yard yard- a unit of measure of 3 feet or 36 inches. Use a yard stick to measure length. 36 inches = 3 feet = 1 yard

25. centimeter centimeter – Metric Measurement - A unit which is less than an inch or 1/100 of a meter. A way to measure length.

26. meter meter – the basic unit of length in the Metric System which equals about 39 ½ inches. Meter –a way to measure length.