1. Explain it simply
The pattern is 每 + (measure word) + noun/time, then Subject + 都 + verb.
每天 and 每年 take no 个, but 每个星期, 每个月, and 每个人 do.
都 goes right before the verb, never at the end.
2. Show examples
我每天都跑步。
Wǒ měi tiān dōu pǎobù.
I run every day.
每天 + 都
每个人都知道。
Měi gè rén dōu zhīdào.
Everyone knows.
每个人 takes 个
他每个星期都去医院。
Tā měi gè xīngqī dōu qù yīyuàn.
He goes to the hospital every week.
都 before the verb
3. Share a tip
每 almost always pairs with 都 — and 都 comes right before the verb, not at the end.