2019 (*peer-reviewed; **invited)

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*Aug 2019 "A critical stance towards pedagogical content knowledge", Presentation at the 18th Biennial Conference of the European Association for Research on Learning and Instruction (EARLI). Aachen, Germany.

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**Jul 2019 "Accounting for changes in teachers' noticing of students' mathematical understanding", Presentation at the University of Huelva. Huelva, Spain.

*Apr 2019 "Toward a model of teacher noticing", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

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*Apr 2019 "Problematizing pedagogical content knowledge", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

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2019 (*peer-reviewed; **invited)

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*Aug 2019 "A critical stance towards pedagogical content knowledge", Presentation at the 18th Biennial Conference of the European Association for Research on Learning and Instruction (EARLI). Aachen, Germany.

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**Jul 2019 "Accounting for changes in teachers' noticing of students' mathematical understanding", Presentation at the University of Huelva. Huelva, Spain.

*Apr 2019 "Toward a model of teacher noticing", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

.

*Apr 2019 "Problematizing pedagogical content knowledge", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

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2019 (*peer-reviewed; **invited)

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*Aug 2019 "A critical stance towards pedagogical content knowledge", Presentation at the 18th Biennial Conference of the European Association for Research on Learning and Instruction (EARLI). Aachen, Germany.

.

**Jul 2019 "Accounting for changes in teachers' noticing of students' mathematical understanding", Presentation at the University of Huelva. Huelva, Spain.

*Apr 2019 "Toward a model of teacher noticing", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

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*Apr 2019 "Problematizing pedagogical content knowledge", Presentation at the 2019 Annual Meeting of the American Educational Research Association (AERA). Toronto, Canada.

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TEACHING

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Graduate Mathematics Education Courses

Free University of Berlin, Department of Mathematics, Germany

Visiting Professor: Identifying and Analysing Student Mathematical Thinking (Winter 2022/23)

Visiting Professor: Designing Mathematics Tasks to Promote Cognitively Activating Mathematics Lessons (Winter 2022/23)

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The University of Auckland, Department of Mathematics, New Zealand

Lecturer: Mathematical Knowledge for Teaching (MATHS 709) (Semester II 2018)

Lecturer: Teaching and Learning of Algebra (MATHS 712) (Semester II 2017)

University of Hamburg, Faculty of Education, Germany

Lecturer: Theories on Learning and Teaching Mathematics with Reference to Calculus for Secondary Teachers (Winter 2014/15)

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Undergraduate Mathematics Education Courses

The University of Auckland, Department of Mathematics, New Zealand

Lecturer: Perspectives in Mathematics Education (MATHS 302) (Semester I 2018)

Macquarie University, Department of Educational Studies, Australia

Tutorial Instructor: Mathematics in Schools (Semester I 2017)

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Humboldt University of Berlin, Faculty of Education, Germany

Lecturer: Mathematical Problem Solving for Primary Teachers (Winter 2015/16)

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University of Hamburg, Faculty of Education, Germany

Exercise Session Instructor: Introduction to the Didactics of Mathematics for Secondary Teachers (Summer 2014, Summer 2015)

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Undergraduate Mathematics Courses

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The University of Auckland, Department of Mathematics, New Zealand

Lecturer: Communicating for a Knowledge Society (SCIGEN 101) (Semester I 2018, Semester II 2018)

Lecturer: General Mathematics (MATHS 108) (Semester II 2017, Semester II 2018)

Hamburg University of Applied Sciences, Faculty of Engineering & Computer Science, Germany

Seminar Instructor: Bridging Courses in Mathematics for Engineers (Winter 2015/16, Summer 2016, Winter 2016/17)

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Leibniz University of Hannover, Faculty of Mathematics, Germany

Exercise Session Instructor: Mathematics I for Engineers (Winter 2009/10, 2010/11, 2011/12) and Mathematics II for Engineers (Summer 2009, 2010, 2012, 2013)

Exercise Session Instructor: Mathematics I for Teachers of Special Needs (Winter 2010/11, 2011/12) and Mathematics II for Teachers of Special Needs (Summer 2011)

Tutorial Instructor: Analysis (Winter 2008/09) and Linear Algebra (Winter 2008/09)

Instructor: Several Extra-curricular Mathematics Courses for Middle and High School Students (Winter 2009/10, 2010/11, 2011/12; Summer 2010, 2011)

School Teaching

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German International School Sydney, Australia

Teacher: Mathematics and Sports (grades 6, 8, 9, and 10) (2017)

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German International School Dubai, United Arabian Emirates

Teaching Assistant: Mathematics and Sports (grades 8 and 10) (2011)

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German International School Cape Town, South Africa

Teaching Assistant: Mathematics (grades 5, 10, and 11) (2010)

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Georg-Büchner-Gymnasium, Germany

Teacher: Mathematics (grades 5, 10, and 11) (2009)

Teacher: Mathematics for Students with Learning Difficulties (grade 5) (2009)