Warm-up Pre-test

Perimeter, Area, Volume and Surface Area

Review of vocabulary and formulas

Objectives Know the definitions of perimeter,

area, volume and surface area Understand units, square units, and

cubic units and how they relate to perimeter, area and volume

Use formulas to calculate perimeter, area, volume, and surface area

Roll the Dice Roll the dice and define the geometry

vocabulary word next to your number.

Dice Roll Number Match11. Circle12. Cube13. Prism14. Cone15. Pyramid16. Cylinder17. Triangle18. Trapezoid19. Rectangle20. Sphere

1. Area2. Circumference3. Perimeter4. Surface Area5. Volume6. Cubic Unit7. Square Unit8. Unit9. Radius 10. Diameter

Perimeter Measure of the distance around a

figure (polygon) made up of straight lines called sides (s, or l & w)

Square, triangle, rectangle, trapezoid, etc. or an irregular 2-D (flat) multi-sided shape.

Circle Perimeter? If the shape has curved lines instead

of straight we call it Circumference. Use radius (r)- distance from the center

to the edge of the circle diameter (d) – distance across the circle

passing through the center d = 2r or r = ½ d

Units Standard or metric Measurement of the side or distance Perimeter and circumference

Square units Area – measure of a shape’s (2-D Flat

figures) surface, space inside the perimeter

Why do we call it “square”? ?

Area PSSA Formula Sheet 2-D figures – Square, parallelogram,

rectangle, triangle, trapezoid, circle, and regular & irregular polygons

How do you find area of a figure that doesn’t have a formula?

Check-up – Perimeter, Circumference and Area Handout of examples Lesson Practice: Perimeter,

Circumference, & Area

Calculating Surface Area Some formulas – cube, rectangular

prism, sphere, & cylinder No Formula?

Find area of each face and add to find the total surface area

What unit is used for Surface Area? Area of each shape that makes up a

3-D solid how much exposed area a solid object

has Answer: Square units

Check-up – Surface Area Handout of examples Lesson Practice – Surface Area

Cubic Units Volume: how much three-dimensional

(3-D) space a solid occupies Why do we call it “Cubic”?

?

Volume Formulas PSSA Formula sheet Prism, Cone, Pyramid, cylinder (many

types), & sphere

Check-up - Volume Handout of examples Lesson Practice - Volume

More Practice – if you need it Measuring Around What happened when Orgo tore up a

PUZZLE Book? Surface Area of Rectangular Prisms Comparing Volumes

Ticket out the Door Post-Test – same as Pre-test???