Get connected with Ohms Law Jan Randewijk WCED and Nico Beute IEEE & CPUT

Overview IntroductionNico 5 min Educational issuesJan10 min Documents & materialsNico 5 min ExperimentJan40 min ConclusionNico 10 min

Objective To enable engineers to lead a training session for teachers on an engineering related topic

Understand the educational system –Educational terms Curriculum Outcomes {CO, DO & LO} Assessment standards –Educational environment Knowledge of learners Knowledge of teachers

How Make it practical – give examples from the workplace Keep it simple Try it out today

Educational Issues Jan Randewijk Critical Outcomes Developmental Outcomes Learning Outcomes

Documentation and Materials Nico Get documents ready before presentation –The IEEE has a number of well prepared sets Update for South African use in consultation with your education department –Draw up documents for scratch –Requirements: Must enable teacher to present lesson Must consider the educational environment –Affordable –Level of knowledge of learners –Technical knowledge of teachers

Documents Introduction Curriculum framework and assessment standards Background information for teachers Lesson plan guidelines Materials required Possible extra activities Student handout

Materials Affordable Easily obtainable As practical as possible Robust Re-usable

Alignment to National Curriculum Statements Note: All lesson Plans in this series are aligned to the Further Education and Training (FET) National Curriculum Statements (NCS) for Electrical Technology. National Curriculum Statement builds its Learning Outcomes for Grades 10 – 12 on the Critical and Developmental Outcomes that were inspired by the Constitution and developed through a democratic process.

The Experiment Jan Randewijk Continuity tester (page 19)Continuity tester Ohms Law (page 21)Ohms Law

Conclusion Nico

Practical applications of Ohms Law Measure resistance of kettle element and calculate power rating –Does it work for a light bulb? Calculate volt-drop in a conductor -

Your evaluation of this activity Documentation –does it meet educational requirements –does it give and allow for practical applications –can it be used by teachers clear and understandable guidelines Usable handout for students Materials –affordable –robust

Thank you

Critical Outcomes Critical Outcomes As a result of the activities, all learners should develop and demonstrate the ability to; identify and solve problems and make decisions using critical and creative thinking; work effectively with others as members of a team, group, organisation and community; organise and manage themselves and their activities responsibly and effectively; collect, analyse, organise and critically evaluate information; communicate effectively using visual, symbolic and/or language skills in various modes; use science and technology effectively and critically showing responsibility towards the environment and the health of others; and demonstrate an understanding of the world as a set of related systems by recognising that problem solving contexts do not exist in isolation.

The Developmental Outcomes The Developmental Outcomes require learners to be able to: The Developmental Outcomes reflect on and explore a variety of strategies to learn more effectively; participate as responsible citizens in the life of local, national and global communities; be culturally and aesthetically sensitive across a range of social contexts; explore education and career opportunities; and develop entrepreneurial opportunities.

Learning Outcomes Learning Outcomes LO1: Technology, Society and the Environment - The learner is able to demonstrate an awareness and understanding of the interrelationship between Technology, society and the environment. LO2: Technological Process - The learner is able to understand and apply the Technological process. LO3: Knowledge and Understanding - The learner is able to demonstrate an understanding of the concepts and principles related to Electrical Technology. LO4: Application of Knowledge - The learner is able to apply principles and practices related to Electrical Technology.

Link with LOs and ASs of Electrical Technology Grade 10 Link with LOs and ASs of Electrical Technology Grade 10 As a result of the Get connected with Ohms Law activity, all learners should develop and demonstrate the ability to; present assignments by means of a variety of communication media. (10.2.5) describe the use and care of tools and measuring instruments (10.3.2) describe the principles of electricity (10.3.4) identify and describe the characteristics of electronic components (10.3.6

Continuity tester

RESISTORS Figure.2.2 Value Colour 1 st Significant Figure 2 nd Significant Figure Multiplier Tolerance 0Black 0 1Brown11101% 2Red221002% 3Orange Yellow Green Blue Violet Grey White Silver 10% Gold 5% The E12 series is a typical example where there are only 12 values and multiples of those 12 values in the series: 10; 12; 15; 18; 22; 27; 33; 47; 56; 68; 74; 82. With an accuracy/tolerance 20% this series will cover the full range of every possible value. The resistor colour- code chart

Materials IEEE OptionLocal Supplier 6,3 volt Lamp 150 mA6,3 Volts 300 mA Resistor No.1 = 47 ohmsResistor No.1 = 22 ohms Resistor No.1 = 100 ohmsResistor No.1 = 39 ohms Resistor No.1 = 100 ohmsResistor No.1 = 47 ohms

Continuity tester