Solved by a verified expert:week 7How is measurement connected to ratio and proportion in real life? Discuss.dq2Why are the concepts of ratio and proportion not introduced in the lower elementary grades? What prerequisite skills, experiences, or knowledge are younger students lacking?week 8How could constructivism be used in an integrated approach to teaching science and math? Explain.dq2What are some benefits and drawbacks of the expository, guided inquiry, and free discovery teaching methodologies? Discuss.