Is 2023 a special number?
Algebra Number Sense Current events
1998 was a Harshad year. What do you notice about the number 2023? What is a Harshad number? Does 2023 meet the criteria? Big deal?  Rare?  Often?  
6.NS 7.NS MP1 MP2 5.OA 6th 7th 8th 5th 3rd 4th 4.OA 3.OA 8.NS Harshad