Begin with a periodic table place mat.  While eating a meal, the learner may enjoy investigating the different colors on the table, the numbers, symbols, and weights.  We purchased these books to support what was taught on the table.

https://www.amazon.com/Painless-Learning-Periodic-Table-Placemat/dp/B000H6F4W6/ref=sr_1_5?ie=UTF8&qid=1490974010&sr=8-5&keywords=periodic+table

https://www.amazon.com/Periodic-Table-Elements-Style/dp/0753460858/ref=sr_1_2?s=books&ie=UTF8&qid=1490974394&sr=1-2&keywords=basher+science+periodic+table