# Bringing Math Home: A Parent's Guide to Elementary School Math : Games + Activities + Projects

By Suzanne L. Churchman | Go to book overview

Glossary

A

acute angle: An angle with a measure less than that of a right angle.

addend: A number added. For example, in 5 + 4 = 9, 5 and 4 are addends.

angle: A figure that can be used to show a turn; a corner.,

area: A measure in square units of how much surface is covered by a figure.

array: An arrangement of objects, pictures, or numbers in columns and rows.

associative property: When the grouping of addends or factors is changed, the sum or product remains the same. For example:

(2 + 4) + 6 = 12; 2 + (4 + 6) = 12

(1 x 2) x 5 = 10; 1 x (2 x 5) = 10

average: The number found by dividing the sum of a group of numbers by the number of addends. For example, 6 + 9 + 8 + 1 = 24 and 24 ^ 4 = 6, and so 6 is the average. This is also called themean.

B

bar graph: A graph in which information is shown by means of rectangular bars.

C

capacity: The amount a container can hold.

Celsius (C): The metric temperature scale. This is also called centigrade.

centimeter (cm): A metric unit used to measure length. 100 cm = 1 meter (m).

circle: A closed figure in which every point is the same distance from a given point, called the center of the circle.

circle graph: A graph that shows information as parts of a circle. This is also called a pie graph.

common factor: A number that is a factor of two or more numbers. For example, common factors of 18 and 24 are 1, 2, 3, and 6.

common multiple: A number that is a multiple of two or more numbers. For example, common multiples of 2 and 3 are 6,12,18, 24, and 30.

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Bringing Math Home: A Parent's Guide to Elementary School Math : Games + Activities + Projects

• Title Page i
• Acknowledgments iii
• Contents iv
• Introduction v
• How to Use This Book vii
• Content Standards 1
• 1: Numbers and Operations 3
• 2: Algebra 35
• 3: Geometry 57
• 4: Measurement 97
• 5: Data Analysis and Probability 129
• Process Standards 155
• 6: Problem Solving 157
• 7: Reasoning and Proof 173
• 8: Communication 181
• 9: Connections 189
• 10: Representation 195
• Summing It Up 201
• Appendix 203
• Glossary 223
• Bibliography 229
• Index 230
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