Suitable for middle school; all in the geometry vein. All available for Macintoshes.
1. KaleidoTile (for Mac, with or without FPU, also a PowerPC version) Creates tessellations of the plane, the sphere, or the hyperbolic plane (!) from triangles. You can spin the resulting object. You can also continuously change from, say, a dodecahedron to an icosahedron. from The Geometry Center in Minneapolis FREE! But you have to ftp it yourself--they don't do mail order. Ask an experienced internet type to help you if you haven't done anonymous ftp. ftp geom.umn.edu cd /pub/software 2. Kali (available soon; the last I heard, it was in a beta version) Allows you to draw symmetric patterns, including tessellations, for all of the frieze and wallpaper types. also from the Geometry Center, same info as above. 3. Escher Sketch. Similar to Kali, but costs about $40 from Intellimation, a software company in Santa Barbara, CA It also tends to crash the system when you change the symmetry type too many times. 4. TesselMania. Similar to Kali, but does only tessellations. Lots of color, and goo-goo eyes so you can turn your tessellations into cute creatures. You CAN`T make any of the symmetry types that have reflections--a terrible omission, in my opinion (snooty mathematician). There are good demos that develop the tessellation piece by piece. Kids love this package, adults too. from MECC in Minnesota, also from Key Curriculum Press in Berkeley, CA; costs about $80.
I can look up the addresses if you really want.
Susan Addington (firstname.lastname@example.org) Math Department, California State University San Bernardino, CA 92407 World Wide Web: http://www.math.csusb.edu/
On Thu, 27 Apr 1995 Lboswell@aol.com wrote:
> I would like information from K-8 teachers that use computers in their > classroom. I am a school board member (and mathematics teacher). Mac > computers with CD-ROM have been purchased for all classrooms. The majority > of teachers are novices and interested in titles of good software. I would > appreciate personal responses (vs. to the list) with 4-5 titles of your > favorite software. Please include: title, vendor, level, topic. > > Thank you from the teachers at Monroe School. > > Laurie Boswell > Monroe School Board > Monroe, NH >