International conferences will have strict guidelines regarding the abstract, the group of topics to choose from, the length of the content and the time alloted for the candidate.
You are interested in Early childhood education, is this part of the International conference because some conferences are very focused. If yes, then look at the guidelines for the scientific session and submissions for paper and poster presentations. Please stick to the time lines including the last dates for submission.
It would be a good idea to check the previous year conference summary report and the topics discussed. Many reputed meetings have a list of people who are in charge of the scientific session who screen the abstracts and papers before accepting or rejecting a submission. Often these experts would have published on key topics, you can just browse if you have the names in hand.
If you look at your selection of topic Explore and learn, you can think of the newer concepts like Flip Methodology (wherein students play a bigger role in developing the concept, knowledge etc and the teachers guide the students and give a feedback to complete the learning session.
You can also try out Peer teaching, here an excellent student is paired with a underperforming student and both have to speak to the class about a particular topic with constructive contribution from the underperforming student.
You can also choose the concept of learning classroom knowledge by actually going out of the classroom. For instance a visit to a water purification plant, the milk dairy etc.
Once you choose, then get an idea of who the target audience would be, is it a mix of teachers/policy makers/ counselleors from all over the world or a focussed group of just teachers only. Then try as see if you can get a model of explore and learn in activity based learning. For example you can choose learning from beyond the classroom. Design an acitivity response sheet about water purification. Divide the class into two. One class has the traditional classroom teaching. The other half are different wherein can students are taken to a purification plant, they are allowed explore, interact and learn water purification plant, learn about different sources of water, methods of purification on small/large scale, the quality tests used etc.
After a few days, give the activity response sheet about standards questions related to water purication, the see how the student groups perform in terms of recollection of facts, ability to expalin and be precise etc.
You can think of a similar idea based on the time and resources in hand. Once you have the data, then set out for making a crisp, simple yet effective presentation instead of overloading with inference. The common headings would include. Topic, aims/objectives, introduction, methodology, your actual data/observations, inferences, recommendations, conclusions etc.
You can pick and choose but remember to finish within the time limit. Be prepared to have a few pictures so that you can use it for the presentation. It is useful to discuss such presentations with people who have already done it in the past. Anticipate a few questions and criticisms related to your topic and gather some information.