You find on this page individual links for downloads of lesson plan/notes to teach children Tawheed and the Pillars of Aqeedah.
These are notes prepared for an Islamic Studies class of a mixed age range (6-12 years, approximately). They are made from and using notes that were taken while attending regular online classes given by Sheikh Muhammad al-Malki for six months in 2011 where he covered the basics of Aqeedah and the pillars of Eemaan.
Clicking on each link will bring you to a page where you can see/read the whole text of the file. This means you can either simply read the text online, or else can see if it is of use to you before you download. All files are in PDF format for which you will need Adobe Acrobat - most computers come with it installed, but if you do not have it then it is both free and easy to download and install insha'Allah.