halacha theory - Sources for which Mitzvot require early training

I'm looking for examples the Sages prescribe for educating for keeping Mitzvos (חינוך למצוות), for example:

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  "קָטָן הַיּוֹדֵעַ לְנַעְנֵעַ, חַיָּב בַּלּוּלָב:" Mishnah Succah 3,15

  
  


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  "מִשָּׁעָה שֶׁהַבֵּן יוֹדֵעַ לְדַבֵּר, לַמְּדֵהוּ "תּוֹרָה צִוָּה לָנוּ מֹשֶׁה"

  
  

On what additional Mitzvos do we have explicit Rabbinical (pre-Rishonim) sources to educate our kids to? Like is there a way to get them used to Yom Kippur or Teffilah or Matzah or Honoring parents etc.