Seeing Math™ Elementary: Dynamic Interactive Software Makes Math Come to Life
Seeing Math™ Elementary
features dynamic interactive software that:
 Illustrates
and reinforces key mathematical ideas.
 Accelerates
learning and enhances comprehension of difficult concepts.
Broken
Calculator Activity
The course
Number & Operations: Broken
Calculator examines how broken calculator problems can help
students develop computational fluency. Faced with the challenge
of solving problems without using certain disabled keys on their
calculators, students must think creatively and use a variety of
skills. They use number facts and estimation; they break numbers
apart and recombine them; they use alternative operations to work
around "broken" keys. They show each other how to use
"friendly" numbers to approximate answers, and then figure
out how to compensate to get the exact solution. Some problems require
that students break multiplication problems into component parts
and understand in detail how multidigit multiplication works.
This fourpart activity includes interactive software that enables
participants to:
 Disable certain
number or function keys on the calculator
 Set "goals"—either target numbers to reach or problems to solve
 Maintain
a history of steps taken to solve problems.
Click to try the Broken Calculator Interactive.
Requires Macromedia Flash version 5 or later: Click
for more info.
