<span>Billy is having trouble in the concept of conservation, which is part of the concrete operational stage of cognitive development.
Trouble in conservation means that Billy is unable to understand that a change in the form of an object does not necessarily mean that the quantity of it has changed. In this instance, Billy has not acquired the ability to understand the 1/2 full glass of orange juice does not increase in quantity when it's poured in his favorite (smaller glass) and reaches its brim.</span>
<span>The learners who like to see the instructions, concepts, diagrams and who often like to take detailed notes are visual learners.
Visual learners, learn better at watching and looking at diagrams.
Auditory learners, are people who learn better when listening to something verbally.
Kinesthetic learners, are learners who learn better at doing things physically.</span>
The two primary reasons for the graying of America
Census of baby boomers
Better medical treatment, living longer
Answer: The correct answer is : Reformist
Explanation: A reformist social movement seeks to achieve social change within the existing political and economic system. Reform social movements happen at a broader level of group or society and advocate minor changes unlike revolutionary social movements that want radical changes.
The result of an experiment
