Objectives (5 - 7 minutes)

1. Understanding the types of reactions: Students should understand and be able to identify different types of reactions including combination, decomposition, single-displacement and double-displacement reactions. They must have a grasp of fundamental concepts regarding each type and be capable of differentiating between them.

2. Recognising chemical reactions practically: The students should be capable of identifying chemical reactions occurring in their environment, both naturally and artificially. Furthermore, students should observe changes occurring during a chemical reaction, enabling them to determine the type of chemical reaction taking place.

3. Problem-Solving Skills: The students must be capable of applying their understanding of various types of chemical reactions in order to solve related problems and answer questions, including: predicting a reaction’s products, identifying a reaction based on a chemical equation, or interpreting the reaction.

Secondary objectives:

• Encouraging Critical Thinking: Through the analysis and interpretation of numerous chemical reactions, students should cultivate critical thinking capabilities, learning to question, evaluate, construct strong evidence-based arguments and reach sound judgments.
• Promoting Active Learning: By involving students through hands-on activities and discussions, this lesson plan aims at facilitating active learning, where students assume responsibility for acquiring knowledge, actively constructing their knowledge through exploration and inquiry.

Introduction (10 - 15 minutes)

1. Review of Prior Content: Begin the lesson by reviewing chemical reaction concepts from previous classes, including the definition, reactants and products involved, and chemical equations used in representing chemical reactions. This serves as a foundation for the upcoming lesson (3-5 minutes).

2. Problem Statement: Present two problem statements to engage students in the lesson's discussions and activities. One statement should involve observing a reaction and identifying its type. Another could require predicting a reaction's type and product given a chemical formula (2- 3 minutes).

3. Contextualization: Highlight the importance of studying reaction types, emphasizing their role in understanding natural phenomena such as digestion, photosynthesis and respiration. Discuss the significance of these reactions in industry (e.g., drug production), agriculture, and other aspects of daily living (2-3 minutes).

4. Introduction to the topic: To capture student's attention introduce the concept of reaction types through intriguing facts or applications. Mention how the reaction of vinegar (acetic acid) and baking soda (sodium bicarbonate) produces effervescence, and that between Hydrochloric Acid and Calcium Carbonate (present in Antacids) forms Carbon dioxide which relieves heartburn. Another fun fact could involve chemical reactions used in analogue photography, where light triggers chemical reactions that imprint images onto film ( 3-4 minutes)

Development (20 -25 minutes)

1.** Virtual Lab Activity: "Kitchen Reactions":** Divide the class into teams, providing them with a list containing everyday kitchen ingredients like vinegar, baking soda, lemon, and salt. Their task involves using what they know about reaction types to predict reactions between these items. Once predictions have been recorded, facilitate the actual mixing of ingredients. Students observe reactions, comparing them to predictions. Afterward, each team discusses the observed reaction types, then presents findings to the class( 10-12 min)

2. Chemical Reactions Charades: Prepare cards with chemical equations depicting different reaction types, with equations written on one side, and the corresponding type written on another. Have teams engage in a game where they take turns picking cards to guess which reaction type is being represented by the equations. Each correct guess scores a point. Continue playing until everyone has had multiple turns. The group with most points wins the game, reinforcing reaction type identification and problem-solving skills. ( 5-7 minutes)

3. Class Discussion: Lead a full-class discussion on observations and conclusions made by students during the activities. encourage students explaining reasoning behind predictions and reflecting on whether these predictions changed after observing the reactions. Use the discussion to clarify concepts and address questions. (5- 6 minutes).

Closure ( 8 - 10 Minutes)

1.** Group Review:** Bring all students together to engage in a collaborative discussion, with each team sharing their conclusions and answers from previous activities, with each group given a maximum of three minutes for their presentation time. Encourage other students in the class to participate by asking clarifying questions and providing their perspectives. Through this review, the class collectively benefits from varied approaches to problem-solving. ( 5-6 Minutes)

2.** Bridging theory with practice:** After group presentations connect activities and discussion to the theory behind chemical reaction types. Reinforce how students' practical experiences relate to theoretical knowledge. Emphasizing that careful observation and prediction - with necessary revisions - leads to accurate conclusions. Highlight the role of these critical thinking and problem solving skills not only within chemistry but also across other disciplines. (2- 3 minutes).

3. Final Reflection: Encourage students to take a moment to individually reflect on what was learned. pose questions like:

4. 1. What was one important concept you learned in today's session?

5. Are there still some unanswered questions you have?

6. In what ways might you use what you learned in class to real-life examples or other situations?

Provide students a minute for reflection , inviting them optionally to briefly share responses with the class, fostering an open and respectful atmosphere where all ideas are valued. (1- 2 minutes)

Conclusion( 5-7 minutes)

1.** Recap**: Commence the lesson' conclusion with a concise summary highlighting main points covered, including the definition of chemical reactions and their variations (combination and decomposition, single displacement and double-displacement), emphasizing the significance of observing changes occurring during a chemical reaction in order to determine its type, reinforcing these concepts with relevant examples from activities conducted in class (1-2 min)

2. Connecting Theory- Practice- Application: Discuss how the lesson has effectively linked the theory (concepts regarding chemical reactions ) with practice (observing and predicting chemical reactions) and real- life applications(identifying chemical reactions encountered in everyday scenarios). Emphasize the crucial nature of comprehending chemical reactions for understanding a wide array of scientific phenomena, industrial processes and even day- to- day experiences. Furthermore , highlight how the lesson has cultivated essential problem- solving, critical thinking and observation skills, applicable across diverse contexts. (1- 2 minutes)

3. Supplemental Resources: Introduce additional learning materials to support further exploration into the subject, such as textbook readings, chemistry websites ,and interactive learning apps, while also assigning exercises for practicing the identification and comprehension of reaction types. ( 1-2 minutes)

4. Relevance and Importance: Conclude by reiterating how this topic holds practical relevance for students, highlighting that understanding chemical reactions facilitates understanding the effects of drugs, effectiveness of household products , and causes of everyday occurrences like metal oxidation. Emphasize how the critical thinking and problem solving skills developed in the class prove valuable in many areas of life beyond the subject of chemistry itself. (1 -2 minutes)