What kind of activities can we do to teach Mandarin to young kids below 1yr old?

Hi Michelle, you can watch the videos on my website (www.dianaser.com). You may need to adapt them because your child is younger. I played a lot of music ( mommy sing along), read books and spoke to my kids when they were babies. Speak to him/her during routine activity like changing diaper, showering, eating etc. All the best!