However, I can provide you with a detailed explanation of activities 2.3 and 11.10, along with the required procedures, observations, and conclusions.

Activity 2.3:
This activity involves a refresher on a particular topic, but without specific details about the topic, it is difficult to provide a comprehensive answer. However, I can guide you on how to structure your response and provide an explanation based on a hypothetical scenario.

Procedure:
1. Start by introducing the topic of the refresher and its significance.
2. Explain the steps or actions involved in the activity, such as reviewing relevant materials, discussing key concepts, or solving practice problems.
3. Provide a detailed procedure for each step, including any materials required.
4. Emphasize the importance of active participation and engagement during the refresher.

Observation:
1. Observe the participants' level of understanding and engagement during the refresher.
2. Note any questions or difficulties participants may have encountered.
3. Observe the effectiveness of the refresher in reinforcing knowledge and skills.

Conclusion:
1. Summarize the main points covered during the refresher.
2. Assess the overall effectiveness of the activity in refreshing participants' understanding.
3. Highlight any areas that may require further review or clarification.

Activity 11.10:
Again, without knowing the specific details of this activity, I can provide a general outline for structuring your response.

Procedure:
1. Introduce the purpose and objectives of activity 11.10.
2. Explain the step-by-step procedure, including any materials required.
3. Provide clear instructions for participants to follow, ensuring they understand each step.

Observation:
1. Observe and record participants' actions and responses during the activity.
2. Note any challenges or unexpected outcomes.
3. Pay attention to any patterns or trends in participants' behavior or performance.

Conclusion:
1. Summarize the key findings or results of the activity.
2. Evaluate the effectiveness of the procedure in achieving the desired outcomes.
3. Discuss any insights or lessons learned from the activity.

Remember to tailor your response to the specific requirements and details of activities 2.3 and 11.10 in order to provide a more accurate and comprehensive explanation.

Every activites are not same...............