What is Pedagogy?
Pedagogy is the art (and science) of teaching.
Effective teachers use an array of teaching strategies because there is no single, universal approach that suits all situations. Different strategies used in different combinations with different groupings of students will improve learning outcomes. Some strategies are better suited to teaching certain skills and fields of knowledge than are others. Some strategies are better suited to certain student backgrounds, learning styles and abilities.
Effective pedagogy, incorporating an array of teaching strategies that support intellectual engagement, connectedness to the wider world, supportive classroom environments, and recognition of difference, should be implemented across all key learning and subject areas. Effective pedagogical practice promotes the wellbeing of students, teachers and the school community - it improves students' and teachers' confidence and contributes to their sense of purpose for being at school; it builds community confidence in the quality of learning and teaching in the school.
(Source: http://education.qld.gov.au/curriculum/learning/teaching/technology/pedagogy/index.html)

Why is it important?
Pedagogy is the "how" the teaching and learning occurs. Students are not empty vessels to be filled with our expert knowledge. They must construct their own understandings through our considered learning experiences.

Do I need variety or do I need consistency?
The answer is both. Students need to feel safe to learn effectively. You need variety in order to reach all the students in the class. Therefore a wide variety of teaching strategies are essential in order to develop effective methods of teaching at the highest level.

Some examples of good pedagogy?
Productive Pedagogies
http://education.qld.gov.au/public_media/reports/curriculum-framework/productive-pedagogies/pdfs/prodped.pdf
https://www.det.nsw.edu.au/inform/yr2002/mar/pedagogy.htm

Pedagogy around Australia

Queensland
New Basics Project (http://education.qld.gov.au/corporate/newbasics) - The New Basics project is about improving the learning outcomes of students and allows community members, teachers and students to work together to ensure that the richness and relevance of students' academic and social growth is enhanced.
The Queensland School Reform Longitudinal Study (QSRLS) (http://education.qld.gov.au) - The Queensland School Reform Longitudinal Study (QSRLS) is the most extensive observation study of classroom practices conducted in Australia. It was commissioned by Education Queensland (EQ) and conducted by researchers from the School of Education, The University of Queensland, from 1998 to 2000.
Tasmania
Learning, Teaching and Assessment Guide (http://www.ltag.education.tas.gov.au) - The Learning, Teaching and Assessment Guide is a growing resource that supports educators implementing the Tasmanian Essential Learnings Framework, a curriculum for learners from birth to age 16.
New South Wales
Learning and Teaching (http://www.schools.nsw.edu.au/learning)
South Australia
Department of Education and Children's Sevices (http://www.learningtolearn.sa.edu.au/core_learning) - The Core Learning Program exposes Principals/Directors, school based leaders and staff to leading edge research regarding learning and complementary constructivist pedagogies and methodology.
South Australian Curriculum, Standards and Accountability Framework from Birth to Year 12 (http://www.sacsa.sa.edu.au/splash.asp) - The website contains information and materials that will support educators in their understanding and use of the framework.
//Educating for the 21st Century Policy// (PDF - 58Kb) - South Australia's Department for Education and Children’s Services statement of the ideals and aims for the education of children who will leave school in the 21st Century.
Western Australia
Curriculum directorate (http://www.det.wa.edu.au/education/curriculum) - The website site has been designed especially for teachers and for other professionals working in education and provides information to assist in the day-to-day activities and teaching carried out in the classroom.
Northern Territory
Northern Territory Curriculum Framework (http://www.deet.nt.gov.au) - The Northern Territory Curriculum Framework (NTCF) identifies learning outcomes for all Northern Territory learners in classes from Transition to Year 10. It provides the major elements of curriculum, around which schools can develop flexible teaching and learning programs that are inclusive of the varied pedagogical approaches of educators, assess learner progress and report on the outcomes achieved.
Australian Capital Territory
ACTivatED Curriculum Documents (http://activated.act.edu.au/ectl/framework.htm) - In July 2007, the Every chance to learn - Curriculum framework for ACT schools, Preschool to year 10, Phase 2 Trial Draft set the foundation for a new approach to curriculum development in ACT schools.