3Laboratory work 9 Defining electric charge of the monovalent ion

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  • 05.05.2020
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Long-term plan unit: Current  in different environments

School:

Date:

Teacher:

 

Grade: 10

Number present:

absent:

 

Theme of the lesson

Laboratory work №9 «Defining electric charge of the monovalent ion»

Learning objectives that are achieved at this lesson(Subject Programme reference)

-to define an electronic charge in the electrolysis process experimentally

Lesson objectives

All students:

- describe what a positive and negative charge is

- use formulas to calculate the electron charge

-able to collect simple chains

- describe the basic concepts (electron, electrolyte, circuit, cathode, anode, etc.)

Most students:

- independently solve problems using calculation formulas

- analyze the data obtained during the laboratory work and perform calculations

Assessment  Criteria

Student:

·        Gives a definition to the concept of charge: negative positive

·        Describes the electrolysis process

·        Uses formulas to solve problems

·        Analyzes the data obtained during the laboratory work

·        Makes a conclusion on the laboratory work

Language objectives

Electron, proton, electrolysis, anode, cathode, mass of substance, amount of substance, Faraday constant, Avogadro constant

Values instilled at the lesson

The use of gaming skills for the development of communication

Ability to work in a pair / group

Student Mutual Aid

Cross-curricular links

Chemistry - electrolysis, calculation of released / absorbed heat

Mathematics - performing calculations

ICT skills

Presentation

Previous learning

 

Current, voltage, resistance, Ohm's law for a complete circuit and a circuit section, charge

 

 

 

 

 

 

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning

0-5 minutes

Organizational moment: Greeting. Creating a collaborative environment.

The formulation of the theme of the lesson and learning objectives.

Based on the goal, the expected result of the lesson is planned together with the students.

 

There are assessment criteria that allow students to evaluate their knowledge. At the end of the lesson, students should be assessed and their progress / gaps in knowledge should be noted during the lesson.

 

Brainstorming: cards are distributed in the form of cut triangles. The students, working in pairs, assemble formulas from the parts of a triangle, recalling the material covered.

Presentation

 

 

 

 

 

 

Appendix 1. Cards

Middle

5-10 minutes

 

10-14 minutes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

  14-30 minutes

 

 

30-33 minutes

 

 

 

34-37 minutes

 

 

Watching the video «What is Electrolysis?».

 

Assembling the circuit according to the scheme. Students assemble the circuit according to this scheme. The teacher checks the correct connection of the components of the electrical circuit.

 

Electrolysis and electrode weighing.

During electrolysis, students make the necessary entries, observe the process of electrolysis.

 

Students derive a formula for calculating the electron charge. Write down the formula.

Homework: calculate charge according to available data, make a conclusion on laboratory work.

 

 

https://www.youtube.com/watch?v=7uIIq_Ofzgw

Appendix 2

Laboratory work

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

End

38-40 minutes

 

Students evaluate their work at the lesson, in the evaluation sheets put a "+" or "-" in front of each criterion. According to the results of the evaluation, feedback is provided.

Appendix 3. Knowledge Assessment Sheet / Evaluation Criteria

Differentiation – how do you plan to give more support? How do you plan to challenge the more able learners?

Assessment – how are you planning to check students’ learning?

Health and safety regulations

All students:

- describe what a positive and negative charge is

- use formulas to calculate the electron charge

-able to collect simple chains

- describe the basic concepts (electron, electrolyte, circuit, cathode, anode, etc.)

Most students:

- independently solve problems using calculation formulas

- analyze the data obtained during the laboratory work and perform calculations

Frontal survey

Performing tasks

Implementation and analysis of practical tasks

Compliance with safety when working with electrical circuits.

Reflection

 

Were the lesson objectives/learning objectives realistic? Did all learners achieve the LO?

If not, why?

Did my planned differentiation work well?

Did I stick to timings?

What changes did I make from my plan and why?

 

Use the space below to reflect on your lesson. Answer the most relevant questions from the box on the left about your lesson.

 

Summary evaluation

What two things went really well (consider both teaching and learning)?

1:

2:

What two things would have improved the lesson (consider both teaching and learning)?

1:

2:

What have I learned from this lesson about the class or achievements/difficulties of individuals that will inform my next lesson?

 

 

 

 


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