Relate Ideas to What Students Know
Student centered teaching methods have been popular in Thailand for some time (even though many educators can't agree on what the term actually means.) It helps to use something familiar or interactive to engage the students on a topic. For example, when discussing slavery a teacher could show a 100 baht bill, something the students have seen many times. Asking the students' Thai Teacher what he/she is doing in class may also help you find material that the students already know.
Some teachers may have a projector or smart board in their classroom which can help to make ideas more visual. Photographing and projecting the back of the 100 baht note will be much more visually compelling and show the image more clearly. Google Earth is free and also works well in teaching Geography, you can start from where your school is and enter the country that you are studying and the globe will spin to show you the location searched. Younger students enjoy pretending that they are 'flying' there. Video is also a great tool but unfortunately some of them are narrated to fast to be understood by English Language Learners. Many free video programs can be used to slow down videos to make them more understandable and YouTube has automatic voice captioning (which will make some mistakes that can be corrected when uploading videos.)
Horrible Histories is both a video series and a book series that students enjoy. There are lots of other ways to try and add humor to lessons whenever possible. Adding humor when the subject is appropriate helps to keep students interested and when the subject is too serious for humor the seriousness is emphasized by the absence of humor. Again, media and video editing are useful in using humor as funny history is easy to find. Below is an example cut from Monty Python's Life of Brian that was used in a PowerPoint to review Roman inventions in a unit. While showing the entire film would not be suitable, this short clip with text added for clarity and review helped students remember.
Make Interactive Displays
While not every school has a projector in the classroom, interactive displays can also be made from paper. Timelines can be hung up as a border around the room with the years that you will study written on them. Once a new event is discussed in class, students can pin it on the timeline making a visual display that they take part in. Maps can also be interactive as borders change and sometimes overlap in history. Kite paper readily available in Thailand is semi transparent which can be cut and tacked to a map marking a place, people or event and blue tack can also be used to move labels, pictures and borders around on a map.