Done (as a virtual category) in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248402 and https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248403. (I didn't know about this page when I proposed that, I think.) Ports that could be go into education category:
1 games/gcompris
2 games/tuxmath
3 games/tuxpaint-config
4 games/tuxpaint-fonts
5 games/tuxpaint-stamps
6 games/tuxpaint
7 games/tuxtype
8 misc/kdeedu3
9 misc/kdeedu4
10 www/atutor
11 www/bigbluebutton
12 www/claroline
13 www/dokeos
14 www/e107
15 www/efront
16 www/elgg
17 www/ilias
18 www/ilias3
19 www/mahara
20 www/moodle
21 www/moodle2
22 www/sakai
23 www/siteatschool
24 chinese/reciteword
25 games/pysycache
26 www/docebo
====================================================================================
Ports that included in other category, but could included in education category too:
1 astro/celestia
2 astro/celestia-kde
3 astro/celestia-gtk
4 astro/celestia-gnome
5 astro/stellarium
6 math/R
7 math/geogebra-i18n
====================================================================================
Education application that maybe imported into FreeBSD in the future:
4 http://richtech.ca/openadmin/about.html
6 http://search.cpan.org/~osfameron/Data-SCORM-0.04/