Can you find the error Mrs. McCartney and Value Pak made in their addition?
Lesson 204
Math
Kindergarten
Use a 10-frame and Rekenrek (counting buddy) to tell if Dotson made a Mystery Math Mistake building "one less." Represent [...]
1st Grade
Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a [...]
2nd Grade
Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through creating [...]
