Léa Mincato ~ Lead Teacher

I was born and raised in France in a little town close to the German border.

After I graduated High School, I studied German for three years and spent my Summer breaks working as an Au Pair in Bonn. Once I completed my Bachelor's degree, I decided to move to Germany to work for a year as a language assistant in a bilingual Primary School and a bilingual High School in Saarland. I really enjoyed that experience and it brought me to start a new path in Germany. I moved to Karlsruhe where I completed a Master's degree in Primary Education. At the end of my studies, I did an internship of a year and a half in a bilingual Primary School where I taught French and Science to First and Second graders.

I then had the opportunity to move to San Diego. Here I worked for language schools (L'Alliance Française and the German Pacific School) and mostly taught children aged from 2 to 15 years old. I also worked for a year as a Preschool teacher at La Petite Ecole, where I was in charge of a class of 4 to 5 years old.

I am now happy to work at Rasselbande and I am glad to be able to use my German on a daily basis again!

During my free time, I definitely enjoy the nice Californian weather either hiking, camping, or spending time at the beach. I also love to evolve in a multicultural environment, whether in my private or professional life and I hope to pass on my curiosity to the new generations.

Johanna Petosa ~ Teacher


I grew up in Kärnten (Carinthia), Austria where I studied for five years at a high school for economics and gastronomy. I finished my education in Klagenfurt at a private academy for languages and business. Since I wanted to gain some work experience abroad, I came to San Diego in October 1999 on a student visa and started my practical training in the beautiful Westgate Hotel in Downtown San Diego.


I met my husband Mike here, and in December 2000 we got married in San Diego. Soon after I gave birth to our daughter, Sophia. When my second child, Michael, was born in November 2002, we were already part of a German playgroup. Eight months later, my friend Heike Paulsen and I decided to form a German cooperative preschool and named it “Die Rasselbande” – yes, Die Rasselbande was born in late summer of 2003! We had six children enrolled in no time and rented a room at a recreation center in Pacific Beach three mornings per week. The group kept on growing and we soon realized that we were on to something and needed professionals on board. We hired a German preschool teacher to guide us, and I started to take courses at the community college in Child Development to become a qualified teacher. Over a few years I acquired more than 30 units and am continuing to work towards the bachelor’s degree.


My family grew even bigger in February 2009 when my son Cornelius was born. I enjoy working with children and I am thrilled to be teaching in German, my mother tongue! I am also happy to be able to practice and pass on the traditions I grew up with. When I am not working, I enjoy spending time with my husband and children, hiking, swimming, dancing, and playing soccer or board games



Alexandra Jaspert ~ Assistant Teacher 


I was born and raised in Cologne, Germany and I grew up bilingually (native speaker in German and Czech). So, I understand and support the importance of growing up with multiple languages. 


I attended a Montessori Boarding School from  the age of 10 years old through graduation, which taught me different educational approaches. I graduated from the „University of Applied Sciences Europe “ with a Bachelor in Communication and Media Management. During my studies, I attended a study abroad semester at San Diego State University in 2017. At that time I met my husband, who was enlisted and stationed at Camp Pendleton as a USMC. After I finished my Bachelor Thesis we moved to San Diego for good in January 2019. 

Here are my experiences as they relate to Early Childhood Education: I worked as a sitter/nanny during my High School years and four years afterwards. The children were between the ages of 9 months and 13 years. In addition, I worked as a tutor for 5 years and gave lessons in English and German for children and adolescents, as well as homework supervision after school for younger students. That’s when I discovered my love for working with children. Helping them step by step and finding the right direction together. I love to be creative both in life and education.


When I am not working, I love to fill my free time with Photography and Videography, spend time with my husband and our two Corgi fur balls, hiking or spending time at the beach, as well as surfing. 

I am grateful for the opportunity to be a part of the Rasselbande Preschool.