Use the Following Description of a Controlled Experiment

question 4

Essay

Use the following description of a controlled experiment:
Two similar kindergarten classrooms, each containing 20- 25 students, have agreed to participate in a study to see if incorporating math manipulatives into the teacher's lesson improves understanding of new concepts in geometry, like recognizing shapes and similarities in shapes. The teacher in one classroom gives a standard lesson without the use of manipulatives then gives a three- question quiz about the new geometry concepts that were taught. The teacher in the second classroom gives a geometry lesson that incorporates the use of math manipulatives. The same three- question quiz is given and the scores of the two classrooms are compared to see whether the use of math manipulatives improved quiz scores.
-Which features of a well- designed control experiment does this study have? Which features are missing?

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Definitions:

Declarative Memories

A type of long-term memory that involves the recall of specific facts and events that can be verbally expressed, such as names, dates, and places.

Procedural Memory

Procedural memory involves the part of the long-term memory responsible for knowing how to do things, storing information on how to perform certain tasks.

Implicit Memory

A type of memory that enables the use of objects or skills without conscious awareness of the learning process.

Severe Memory Impairments

Significant difficulties in recalling past experiences or learning new information, often resulting from brain injury, disease, or psychological trauma.