This lesson, which matches a first-grade standard, would be of value to younger students performing above grade level, older students performing below grade level, and students in first grade. 

Lesson on connecting cubes.

This Math Daily 3 Focus Lesson matches a fifth-grade standard.

This lesson, which matches a fourth-grade standard, would be of value to younger students performing above grade level, older students performing below grade level, and students in fourth grade.