Online tools
Time Line Maker
http://www.teach-nology.com/web_tools/materials/timelines/
The time line maker is an easy to use tool that allows for quick either vertical or horizontal time lines. If there are enough computers in the classroom, students can make their own tile lines. Teachers can supplement their lessons with visual examples of what is being discussed in the classroom.
KWL Generator > KWL Diagram
http://www.teach-nology.com/web_tools/graphic_org/kwl/
The KWL sheet is an excellent assessment tool. Teachers can gauge what needs to be addressed in future lessons. Teachers can also see what their students have learned. Assessment can be evaluated from a teacher and student perspective. The site provides simple to make charts.
Puzzlemaker
http://puzzlemaker.school.discovery.com/WordSearchSetupForm.html
The word search puzzle would serve as a good brain teaser to get the students warmed up for the day's lesson while the teacher is doing administrative work. The site gives a fast way to construct your own puzzles. Brain teasers are a good way to get students thinking and this site provides a simple way to make puzzles.
Concept Web Generator
http://www.teach-nology.com/web_tools/graphic_org/concept_web/
Graphic organizers are always good for students to visualize information. The concept web allows students to view a relationship between events and individuals involved in those events. This is a good tool for history teachers. I had a hard time printing this document and copying it to Word.
Venn Diagram Worksheet Maker
http://www.teach-nology.com/web_tools/graphic_org/venn_diagrams/
A good graphic organizer to show similarities and differences between events or people. The diagram becomes distorted when printed out. When you cut and paste to Word, the diagram also becomes distorted.