I hope that teachers, regardless of who they teach, find some time and some way to address the moment we're in right now in these final days of school with students. Particularly white teachers, who do the most damage by remaining silent. A few resources I have used:
This piece by @Olugbemisola is great and is FULL of other resources within it: https://www.readbrightly.com/how-to-talk-to-kids-about-race-books-and-resources-that-can-help/
A short but extremely valuable PDF on the stages of racial identity development in children by Louise Derman-Sparks: https://www.earlychildhoodwebinars.com/wp-content/uploads/2016/02/Stages-of-Childrens-Racial-Identity-Development.pdf
This is from @NAISnetwork by @EBartoliPhD and Ali Michael is specifically about white children and the need for them to be included in race conversations: https://www.nais.org/magazine/independent-school/summer-2014/what-white-children-need-to-know-about-race/
More about engaging kids in conversations about race and racism from the @ADL: https://www.adl.org/education/resources/tools-and-strategies/race-talk-engaging-young-people-in-conversations-about#.VbD3t_lVhHw?utm_source=SEL%2FTM%20News%208-4-15&utm_campaign=SEL%2FTM%20Newsletter%208-5-15&utm_medium=emai
Laleña Garcia wrote this wonderful version of the #BlackLivesMatter
guiding principles in kid-friendly language: http://weac.org/wp-content/uploads/2018/02/kid-friendly-language.pdf

Talking race with young children from @npr and their @NPRLifeKit, a great listen plus other resources, tips, and studies: https://www.npr.org/2019/04/24/716700866/talking-race-with-young-children
@consciouskidlib is a treasure trove of info (follow them in Instagram), resources, book lists, articles, interviews, and more.
@SceneOnRadio's series is essential listening from @catchatweetdown and John Biewen about the history of the (intentional) creation and maintenance of whiteness as a race: https://www.sceneonradio.org/seeing-white/
Abundant Beginnings is an SF Bay Area org that does amazing work training teachers, running summer camps, and more. They did a training at my old school that included how to talk to very young kids about police brutality: http://abundantbeginnings.org/
Lastly I should say that it's on white folks to do this work. Some of these resources are from BIPOC and they're all *free*; consider donating to individuals to honor their labor.
Oh I forgot this study from the University of Toronto @UofT about just how early racial bias appears in babies (so basically, it's never too early to start): https://www.utoronto.ca/news/racial-bias-may-begin-babies-six-months-u-t-research-reveals
As a white teacher I worried a lot about doing and saying the right thing. Some is good, but turn it into knowledge, and let's not let it paralyze us to the point of silence and inaction. Just be informed, ready to stumble, and ready to protect the vulnerable students.
Oh and: in 2017, 80% of US teachers were white. 4 out of 5! That's a pretty astonishing number, and there are a million reasons for it, but given what I know about white teachers (like me), that's a LOT of teachers potentially avoiding these topics https://nces.ed.gov/fastfacts/display.asp?id=28