Fourth, Fifth, Sixth Grade Divisibility - Students learn the divisibility rules for 2, 3, 4, 5, 6, 9 and 10. A review of the basics of division precedes the lesson. This is perfect for distance learning on Zoom or similar formats. On top of that it is powerful when used as direct instruction in the classroom. There are 22 effective teaching strategies based on research used in this lesson. For best results, students should have white boards and dry erase markers. For instructions on