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SHS 1 Chemistry 1st Semester Week 14 Lesson Plan

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Weekly Learning Plan
Subject	Chemistry	Week	14
Duration	60 minutes	Form	SHS 1
Strand	PHYSICAL CHEMISTRY	Sub-Strand	MATTER AND ITS PROPERTIES
Learning Outcome(s)	1.1.1.LO.1 - Use the knowledge and understanding of the scientific practices in Chemistry to explain the structure of the atom as well as the stability of its nucleus 1.1.1.LO.2 - Use the mole concept to determine the amount and quantity of various substances involved in chemical reactions 1.1.1.LO.3 - Write mole ratios for chemical equations and apply it in quantitative analysis 1.1.1.LO.4 - Use the kinetic theory of matter to explain the behaviour of solids, liquids and gases under different conditions and describe the laboratory preparation of gases as well as their uses in everyday life
Content Standard	1.1.1.CS.1 1.1.1.CS.2 1.1.1.CS.3
Learning Indicator(s)	1.1.1.LI.3 - State Graham's law of diffusion/effusion and Dalton's law of partial pressures and apply them to perform calculations. Talk for Learning: In small mixed-ability groups, • Discuss Graham’s law of diffusion/effusion and use it to describe and explain the effect of relative molecular mass and/or density on the rate of diffusion/effusion of gases. • Explain Dalton’s law of partial pressures and its application in determining the total pressure of a mixture of gases or the partial pressure exerted by each component in a mixture of gases. Experiential Learning: • Design and perform an experiment to investigate the rate of diffusion of gaseous ammonia and hydrogen chloride. • Make deductions from the results of the experiment
Lesson Focus	State Graham's law of diffusion/effusion and Dalton's law of partial pressures and apply them to perform calculations.
Previous Knowledge	Learners recall related ideas, vocabulary or experiences from earlier lessons and everyday contexts.
Lesson Objective(s)	Describe the key idea in: State Graham's law of diffusion/effusion and Dalton's law of partial pressures and apply them to perform calculations. Apply the idea through guided and independent learning activities. Demonstrate understanding through oral responses, written work or practical performance.
Essential Question(s)	What chemical model, relationship, evidence or calculation is central to State Graham's law of diffusion/effusion and Dalton's law of partial pressures and apply them to perform calculations. Talk for Learning: In small mixed-ability groups, • Discuss Graham’s law of diffusion/effusion and use it to describe and explain the effect of relative molecular mass and/or density on the rate of diffusion/effusion of gases. • Explain Dalton’s law of partial pressures and its application in determining the total pressure of a mixture of gases or the partial pressure exerted by each component in a mixture of gases. Experiential Learning: • Design and perform an experiment to investigate the rate of diffusion of gaseous ammonia and hydrogen chloride. • Make deductions from the results of the experiment? How can laboratory observations, particle models, equations, graphs or quantitative data be used to explain the chemistry? How can the chemical principle from this lesson be applied to predict the behaviour of a new substance or reaction?
Pedagogical Strategies	Think-Pair-Share Collaborative Learning Problem-Solving Experimental/Practical Learning Digital/Simulation-Based Learning Model-Based Learning Worked-Example Fading
Teaching & Learning Resources	Chemistry textbook/reference materials Whiteboard/markers Learners' notebooks Periodic table Scientific calculators Formula/equation cards or worksheets Gas preparation apparatus or diagrams where available Particle-model materials Test tubes/rack and droppers where available Safe reagent samples or teacher-prepared demonstration materials
Key Notes on Differentiation
Content	Use particle diagrams, colour-coded equations, formula prompts, worked examples and simplified data tables for learners who need support. Extend advanced learners with multi-step calculations, unfamiliar data, mechanism/property comparisons or more demanding analytical interpretation.
Process	Use mixed-ability grouping with rotating roles such as apparatus manager, recorder, calculator, safety monitor and presenter during practical/problem-solving work. Where apparatus or chemicals are unavailable, use curriculum-aligned simulations, videos, virtual laboratories, data sets and teacher demonstrations without changing the learning objective.
Product	Allow evidence such as balanced equations, calculations, graphs, molecular/particle models, practical reports, chromatogram interpretations, comparison tables or oral explanations. Assess chemical accuracy, safe procedure, correct units/notation, quantitative reasoning, evidence interpretation and ability to justify conclusions.
Success Criteria	Learners use correct subject vocabulary. Learners complete the main task with reasonable accuracy. Learners explain or demonstrate how the concept applies in a new situation.
Homework	Answer structured questions and identify one everyday application of the concept.

Lesson Activities
Stage	Teacher Activity	Learner Activity	Assessment / DoK
Starter10 minutes	Present a diagram, specimen, data set or everyday situation connected to state graham's law of diffusion/effusion and dalton's law of partial pressures and apply them to perform calculations and ask learners what they observe.	Share prior knowledge, listen to peers and record the lesson question in their notebooks.	Not provided.
Activity 115 minutes	Use a labelled diagram, model, experiment, data table or safe demonstration to explain state graham's law of diffusion/effusion and dalton's law of partial pressures and apply them to perform calculations.	Observe carefully, record key terms and answer oral questions.	Ask learners to identify the key feature, variable, process or relationship.
Activity 220 minutes	Guide groups to observe, classify, measure, compare or explain evidence related to state graham's law of diffusion/effusion and dalton's law of partial pressures and apply them to perform calculations.	Work in groups to complete the observation, classification, measurement or explanation task.	Review group responses for accurate science vocabulary and evidence.
Activity 310 minutes	Give a new case, data set or observation and ask learners to predict or explain the outcome.	Apply the concept to the new case and support the answer with evidence.	Use an exit task that asks for a prediction, explanation or calculation.

Lesson Closure

Summarise state graham's law of diffusion/effusion and dalton's law of partial pressures and apply them to perform calculations and correct one common misconception using learner examples. State one thing learned and complete the exit response.

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