Three Useful Tools for the Social Studies Classroom (3 E's)
1. Scribble Maps

http://scribblemaps.com/#
Scribble Maps is an online drawing and mapping tool that allows students and teachers to draw and examine maps using Google Earth. The difference between this tool and Google Earth is that one can draw shapes and lines on these maps, can label landmarks using texts and markers, and even add custom images and overlays on the maps.
This tool, in terms of enhancement, efficiency, and effectiveness, encompasses all of these aspects in one way or another. When studying the civil war, for example, one can zoom in where famous battles took place and actually show how the battle materialized (i.e. where troops were coming from, where they faced off, etc.). This allows students to enhance their knowledge of the battles seeing first hand what happened. It is also efficient and effective in the sense that all the tools that one needs to incorporate this in a lesson are provided on the website. It is effective in the sense that many teachers do not use interactive maps in this way and therefore, it is a new and exciting tool that many students do not get the opportunity to see.
2. All of Me Timelines
http://www.allofme.com/
All of Me Timelines are useful tools in the classroom. It allows students and teachers to map out out events as they happened at various periods of time and analyze the order in which events occur and how they contributed to the issues of those periods. Even if the assignment isn't to create an original timeline, students can search through other pre-created timelines to help them study for tests or quizzes.
This tool, in terms of enhancement, efficiency, and effectiveness, also encompasses all three aspects in one way or another. It has the capability to enhance the students knowledge by using picture or video to show the specific event. One can also add commentary or a description of what the event is and how it pertains to the issue that the students are studying. It is an efficient tool because all of the events are listed with images and videos right at the students fingertips. It is an effective tool because, much like the Scribble Maps, it is something very original and does not get much use in the classroom. Because many students don't use the tool, they'll be intrigued and hopefully enjoy the experience and continue to use it to study and learn.
3. Flashcard Machine
http://www.flashcardmachine.com/
Flashcard Machine is a common yet very useful tool in the classroom. Many students from elementary to college use flashcards in some way or another. This tools takes the idea of creating flashcards and takes it a step further. It allows you as a student to create your own flashcards and keep them in a database as well as search through the flashcards that millions of contributors have created. As a teacher, this site allows you to create flashcards for all of your students as well as create your own classroom page for better organization. Another excellent reason for using this tool is the option called iStudyToGo which allows students to export their cards onto their iPod to help them study while on the go.
This tool exemplifies effectiveness and efficiency. Flashcards have been proven to be an effective tool regardless of the age of students and the grades they are in. This tools makes it easier to organize and study terms, events, or ideas to help students perform their best on quizzes or tests. The iStudyToGo option also further proves its efficiency. Students able to take their study materials with them on the go will not feel forced to have to sit and study but instead can do other daily tasks and study.
All of these tools can easily be implemented into the classroom without the adjustment of lesson planning. Ultimately, they make lessons easier and more pleasurable for teachers and they can all make learning easier, fun, and more enjoyable for students.