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bad date talking

Bad Date


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This humorous animation visualizes the ratio of words spoken on a series of dates.

Addresses:
  • Proportions as multiplicative situations.
  • Proportional relationships can be related to a common rate in direct variations.
iphone with Pearl Diver

Math Snacks on the iPad and iPhone!

Now available!


Pearl Diver available on the iPad, iPhone and iPod Touch
scale ella

Scale Ella

A crusading superhero clarifies and uses scale factor.

Addresses:
  • Objects that are scale representations of each other have the same shape but not the same size, and the size difference is related to the scale factor.
dodgeball announcers

Atlantean Dodgeball


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Ratio errors confuse one of the coaches in an epic dodgeball tournament.

Addresses:
  • Ratios can represent part–whole or part–part relationships.
number rights speaker

Number Rights


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A passionate activist clarifies equality on a number line.

Addresses:
  • Equality and order on the number line
  • Number line properties
Pearl Diver

Pearl Diver

Mini-game that facilitates understanding of equality on number line.

Addresses:
  • Equality and order on the number line
  • Number line properties
Overruled! King and Queen

Overruled!


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Rulers value proper units and proportional details.

Addresses:
  • Various techniques are helpful in solving proportion, including tables, graphs, measurement, and equations.
  • Given an application problem, using the units can help to set up the correct proportion.
  • When proportions are graphed on a coordinate plane, the graph is linear.

© 2009 NMSU Board of Regents. All rights reserved. "Math Snacks" materials were developed with support from the National Science Foundation (0918794) and under a cooperative agreement from the U.S. Department of Education (U295A050004). Any opinions, findings, conclusions or recommendations do not represent the views of NSF or the policy of the Department of Education. This does not reflect endorsement by the federal government. NMSU is an equal opportunity/affirmative action employer and educator. NMSU and the U.S. Department of Agriculture cooperating.

For more information contact, Barbara Chamberlin bchamber@nmsu.edu 575-646-2848.