When the context of the existing reality in the schools, in society and government are taken into consideration, the criterion in curriculum development that is considered is..

The criterion in curriculum development that is considered when taking into account the context of the existing reality in schools, society, and government is relevance.

Step 1: Understand the Context The first step is to understand the current reality in schools, society, and government. This involves researching and gathering data on the current state of education, societal needs, and government policies.

Step 2: Identify Relevant Factors Next, identify the factors that are relevant to curriculum development. These could include the needs of students, the skills required by society, and the educational goals set by the government.

Step 3: Develop Criteria Based on these factors, develop criteria for the curriculum. This could include the relevance of the content to students' lives, the alignment of the curriculum with societal needs, and the compliance of the curriculum with government policies.

Step 4: Apply Criteria Finally, apply these criteria in the development of the curriculum. This involves designing and implementing a curriculum that is relevant to the students, meets societal needs, and complies with government policies.

In conclusion, the criterion in curriculum development that is considered when taking into account the context of the existing reality in schools, society, and government is relevance. The curriculum should be relevant to the students, meet societal needs, and comply with government policies.