Questions? Call 800-624-6242
add to cart
Rights & Permissions
. "3 Learning and Transfer." How People Learn: Brain, Mind, Experience, and School: Expanded Edition. Washington, DC: The National Academies Press, 2000.
Please select a format:
The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
BOX 3.11 Three Solutions to the Best-Buy Problem
Which is the best buy for barbecue sauce?
Percentage Using Strategy
A gives 4 more
bunces and costs 2
cents less than B
Which is the best buy for sunflower seeds?
30/3=10 cents per ounce
44/4=11 cents per ounce
A costs less per ounce than B
Which is the best buy for peanuts?
A costs twice as much
as B and contains more
than twice as much
SOURCE: Adapted from Lave (1988).