Tommy understands that two equal quantities remain equal even though the form or appearance is rearranged. This shows that Tommy used to be in the stage of development and has transitioned to the stage of development.

Preoperational stage; concrete operational.

Explanation:

The concrete operational stage of cognitive development is one of the the four stages of cognitive development proposed by Piagets in his theory. concrete operational stages of cognitive development occurs between the ages of seven(7) to eleven (11) years old and it is the third stage of cognitive development. In this stage of cognitive development that is concrete operational stage is a stage where the thinking of children becomes more concrete. Before the concrete operational stage we have the Preoperational stage which occurs between the ages of two(2) to seven(7) years old which means that Tommy was in this stage before his transitioning into concrete operational stage of cognitive development.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.