2nd Grade Math

Study Guide

2011- 2012

Part 3

Polygons

Color the polygons:

**********************************************************Polygons in My World

What are the attributes of a polygon?

1)_____________________________________

2)_____________________________________

3)_____________________________________

Draw your own polygon.

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Polygons have sides and vertices.

1. Mark and count the sides on this polygon.

______ sides

2. Mark and count the vertices on this polygon.

______ vertices

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2-D Geometry

Quadrilateral

What does quadrilateral mean?

________________________________________

Count the sides and then color the quadrilaterals below.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Pentagon

What is a pentagon? ___________________________

___________________________________________

Draw two different pentagons.

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Hexagon and Octagon

Hexagon Octagon

Alike Different

How are a hexagon and an octagon alike?How are they different?

**********************************************************2-D Shapes in My World

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3-D Geometry ~ Prisms

Draw a line between the prism and its name.(Be careful, one shape has two names.)

Mark and count the number of edges, verticesand faces on this triangular prism.

Rectangular prism

Square prism

Triangular prism

E = ___

V = ___

F = ___

**********************************************************Prisms in My World

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1. Which statement about these 3-dimensional figures is NOT TRUE?

2. How many fewer vertices does Figure A have than Figure B? ________

Figure A

Figure B

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A. They each have 6 faces.

B. They are both prisms.

C. They each have 12 vertices.

D. They each have 12 edges.

3-D Geometry ~ Pyramids

Draw a line between the pyramid and its name.(Be careful, one shape has two names.)

Triangular Pyramid

Square Pyramid

Rectangular Pyramid

Mark and count the number of edges, verticesand faces on this triangular pyramid.

E = ___

V = ___

F = ___

**********************************************************Pyramids in My World

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1. How many more faces does a rectangular pyramid have

than a triangular pyramid? __________

2. How are prisms and pyramids different?

_______________________________________________

________________________________________________

________________________________________________

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3-D Geometry ~ Cylinder, Sphere, and Cone

Label the shapes used to make the robot below.

A sphere has ______ vertices, ______ edges,

and _______ faces.

A cylinder has _____ vertices, ______ edges,

and _______ faces.

A cone has ______ vertices, ______ edges,

and _______ faces.

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1. Which shape is most like a can?

A. cone

B. circle

C. cylinder

D. sphere

2. Which statement is true about the figure?

A. It has 2 vertices.

B. It has no faces.

C. It is a cylinder.

D. It has 3 edges.

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Money

Draw the hairs on each coin. Write its name and its value.

__________

_______¢

__________

_______¢

_____________

_______¢

__________

_______¢

Sue has this money in her purse. Write the amount of money she has.

$_______

********************************************************** Using Money in My World

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1. Marco had 40¢. His dad gave him 36¢ more. How much money does Marco have now?

a) 75¢ b) 40¢ c) 50¢ d) 76¢

2. Alissa had 42¢. She let her sister have 11¢. How much money did Alissa keep?

________________

Telling Time Four Ways

___ ___ : ___ ___

_______ minutes _____________ _________

_______ minutes _____________ _________

_______ minutes _____________ _________

_______ minutes _____________ _________

********************************************************** Telling Time in My World

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1. Erick ate dinner at 20 minutes before 6:00. What other way can this time be written?

a) 6:20 b) 5:20 c) 5:40 d) 5:30

2. Which time is NOT the same as the others?

a) 25 minutes before 3:00

b) 25 minutes until 2:00

c) 35 minutes after 2:00

d) 25 minutes until 3:00

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Temperature

Write the vocabulary words in the correct box.

colder rising increasingwarmer higher fallinglower decreasing

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********************************************************** Temperature in My World

1. The thermometer shows the temperature outside. What temperature is on the thermometer?

A) 63° F B) 64° F C) 57° F D) 56° F

2) The thermometer below reads:

A) 95° F B) 90° F C) 85° F D) 80° F

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Measurement ~ Length (Metric)

**********************************************************Measuring Metric Length in My World

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What is length? ______________________________

___________________________________________

Metric Measurements of LengthThe benchmark is shown in the box.Draw something else about that same length.

Meter Centimeter

Millimeter

1. Tim's dad has a big umbrella. About how long is the umbrella?

a) one meter

b) one centimeter

c) one millimeter

2. Circle the things that are about one centimeter long in real life.

a balloona penny a watch

a unit cube a flowera ladder

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Measurement ~ Length (Customary)

**********************************************************Measuring Customary Length in My World

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Customary Measurements of Length

The benchmark is shown in the box.Draw something else about that same length.

Yard Foot

Inch

1. What would be the best unit to measure the length of a car?

a) feet b) centimeters c) millimeters d) inches

2. Order these units of measurement from shortest to longest?

inch (in) foot (ft) millimeter (mm) centimeter (cm)

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s L

Area

In the grid below color a shape that hasan area of 12 squares.

**********************************************************Things That Have Area in My World

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What does the word area mean? _______________

__________________________________________

What is your strategy for finding area? __________

__________________________________________

__________________________________________

1. Which figure has the least area?

a) b)

c) d)

2. Draw a line from the figure to its area.

15 square units

18 square units

14 square units

12 square units

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