In "Sharing Submarine Sandwiches," participants can interact with footage of fifth graders: constructing big ideas related to fractions solving carefully crafted problems that help children generalize strategies to all fractions making connections between fair sharing and partitive division exploring the relationship between numerators and denominators. System Requirements for CD-ROM

Windows/PC
Pentium II Processor
266MHz (or higher)
Windows 98 (or higher)
64 MB RAM (more recommended)
SVGA Color Display (or better)
4x CD-ROM Drive (or faster)
Sound Card
16-bit Flash(tm) Player and Acrobat Reader
Quicktime 6.0 (or higher)

Mac
PowerPC Processor G3/233MHz (or higher)
System 9.2 or 10.2 (or higher)
64 MB RAM (more recommended)
SVGA Color Display (or better)
4x CD-ROM Drive (or faster)
Sound Card
16-bit Flash(tm) Player and Acrobat Reader
Quicktime 6.0 (or higher)