1) Make it simple, tasks that are too complex are frustrating and children loose interest when frustrated. Age and stage appropriate activities are essential when teaching.
2) Make it fun! Learning and teaching should be fun, make your learning opportunities play based. Use your imagination and your toddler's imagination too!
3) Practice, practice, practice, repetition helps to reinforce concepts and skills.
4) Interactive and hands are the best activities for toddlers and preschool age children.
5) Routine is key, A routine that you follow at every lesson not only saves you planning time, but is comfortable for the child.
6) Be flexible learning does not need to be so formalized or structured at this age it is important to be open to what ever happens, you never know what learning or lesson may present itself. Every moment presents an opportunity to grow.