I home schooled my son for 2 years. When I introduced multiplication, the way I taught it was through addition. Like this, you have three groups of pencils, in each group, there are 6 pencils. You can add each group together and get 18 pencils. 6+6+6=18. Or you have 6 groups of 3 pencils, and when added together, 3+3+3+3+3+3=18. And then I would show him another way to get the same answer for that problem. And on the white board, I would write 6x3=18 & 3x6=18. And explain how I got those answers. I always made sure to write the multiplication problems both ways, because I noticed that he could learn 6x3, but that would get stuck on 3x6. It seemed to help when I had enough of something that I could lay them out on the table in front of him. I used paper clips, pencils, rubber bands. Whatever I had enough of, to break down and show him how they work. After multiple times of showing him the addition side of multiplication, he did fairly well. I hope this helps.