Better Lesson
Better Lesson: Domino Addition: Understanding the Part/part/whole Relationship
The big idea of this lesson is the understanding that addition can be represented as parts of a whole and that we can use addition sentences to represent those parts.
Math Is Fun
Math Is Fun: Ratios
After reading a simple definition of "ratios", you can explore many examples of ratio use in the real world.
Texas Instruments
Texas Instruments: Drawing on Your Knowledge
In this activity, students will understand the basic geometric concepts of parallelism and perpendicularity, and will also able to use rectangular coordinates to make congruent objects. They will display understanding of parts of...