My fourth and fifth grade students have heard a new word this year. Catecholamines.
Definition cut and pasted from Mediline Plus: Catecholamines are hormones made by the adrenal glands. These glands are on top of the kidneys. Catecholamines are released into the blood when a person is under physical or emotional stress. The main catecholamines are dopamine, norepinephrine, and epinephrine (which used to be called adrenalin).
I am using this in the context of readings I have done to equate the release of protein traces in the blood after the body's reaction to the 'Fight or Flight' type of response. Studies show workouts for shorter, more intense durations can have a pronounced effect on physical conditioning over the longer, slower, plodding workouts that extend in duration. Catecholamines are released or have the potential for release if we speed up our start of class exercises and challenge ourselves to push towards limits. There is truth to, "No Pain, No Gain"
My wish list this year is a tablet, complete with recording capabilities, I will forward what a 10 minute session of the start of our class can look like when this request comes through.
Currently we have been practicing volley skills. Starting in fourth grade, I put away the beach balls and move to a more dense, heavier ball that requires proactive foot and body orientation and better striking techniques to control the ball. One other pronounced difference is the TEAMWORK that is needed with a heavier ball. We started this lesson plan using an Inquiry based approach. I placed students into teams and gave them a 'mission'. The solution to this mission was to volley a ball over a distance. Teamwork HAD to happen or the mission was unachievable.
Robert A. Briglia