IM 6.1.9 Formula for the Area of a Triangle

Open Up Resources Illustrative Mathematics Grade 6 Unit 1 Lesson 9: Formula for the Area of a Triangle Available for FREE at: https://im.openupresources.org/6/students/1/9.html#introduction Allow students to record their thinking. Use Classroom Communication Tools to guide class discussion. See Teacher's Guide for additional notes and support, available for FREE at: https://im.openupresources.org/6/teachers/1/9.html#1-9-lesson-plan

By Cindy Whitehead