6 math questions

Think back to your elementary/middle school days and discuss one or two activities that helped you understand the concept of area? Would the same activities help today’s children understand the concept? Explain.
What is the value of having students use nonstandard units of measurements? Provide examples.
In 100 words explain Linear Measurea in math
In 100 words explain Areas of Polygons and circles in math
In 100 words explain surface area
In 100 words explain volume, mass, and temperature in math