Online
Callista
Professional TeacherTeaches
English
Native
Speaks
Igbo
Spanish
TEFL Certified International Tutor with over 10 years Teaching Experience.
Teaches
English
Native
Speaks
Igbo
Spanish
TEFL Certified International Tutor with over 10 years Teaching Experience.
About Me
Me as a Teacher
My lessons & teaching style
Resume & Certificates
From NigeriaLiving in Lagos, Nigeria (21:28 UTC+01:00)
About Me
italki teacher since May 2, 2024InterestsMusicReadingFoodBusiness & FinanceTravel
Hello! I’m Callista – your TEFL-certified English Tutor. With 10+ years of experience, I specialize in Conversational English, Business English, and interview/exam preparation – turning learners into confident speakers.
My MBA (Quantic, USA) ensures your lessons blend real-world practicality with lively, tailored coaching. Whether it’s acing a job interview, networking, travelling abroad or blending into a new culture, I make learning fast, fun, and effective.
Students love my classes because: ✓ Quick progress with patient, engaging coaching ✓ Real-life focus (business, travel, daily conversations) ✓ Energy + fun – music, stories, and laughter!
Ready to speak fluently? Book a class with me.Me as a Teacher
Learn English with a passionate, patient, lively and easy-going tutor. I have over 10 years of teaching experience with a TEFL Certificate from TEFL professional institute. I also have a bachelor of Science degree from the prestigious University of Lagos, Nigeria.
I teach English. I am very good in written and spoken English. I am easy going and very patient when I teach. This helps me to make sure that the learners fully assimilate what I teach them. My students improve in their learning speedily because of my teaching style and approach. My lessons & teaching style
In terms of teaching methodology, I use the direct method of teaching, also known as the natural method of teaching a foreign language through conversation, discussion and reading in the language itself.
This way of teaching English proceeds from simple to complex, concrete to abstract.
I also have a student-centered approach that focuses on engaging and interactive lessons.
I take my time to teach my students. I teach with patience and understanding. This way my students are relaxed and this helps them to learn better.My teaching material
- PDF file
- Text Documents
- Presentation slides/PPT
- Audio files
- Image files
- Video files
- Flashcards
- Articles and news
- Quizzes
- Test templates and examples
- Graphs and charts
- Homework Assignments
Certificates
Teaching English as a Foreign Language - Teacher Record - 2022I completed a 120-hour intensive training on Teaching English as a Foreign Language with practical examples and methodologies in teaching English to non-native speakers and learners of different stages.
With the knowledge acquired from the training, it enables me to teach English language skills, plan English lessons for non-native speakers, simplify English grammar for easy understanding and create effective learning materials.
Certificate verified
Teaching experience
2018 - 2023
Online English Teacher* Teaching candidates online who are sitting for Cambridge Checkpoint and IGCSE examinations.
* Mentoring and motivating them to achieve success in their examination.
* Monitoring their learning progress and identifying areas where assistance is needed.
2013 - 2016
English Teacher
Education
2015 - 2020
Bachelor’s - Public Administration
Work Experience
2013 - 2023
TeacherI have taught for over 10 years in different private schools in Lagos, Nigeria. I have taught different categories of learners within this period. This experience has enabled me to easily understand the needs of learners and how best to help them.
4.9
Rating
150
Students
278
Lessons
99%
Attendance rate
100%
Response rate
English Lessons
Trial Lesson
129 lessons completed
USD 5.00+
Conversational English (Beginner to Advanced)
A1 - C2Language Essentials121 lessons completed
USD 10.00+
Package with 11% off
Grammar Booster/Structured English Lessons (Reading, Writing, Listening, Speaking)
A1 - C2Language Essentials11 lessons completed
USD 11.00+
Package with 10% off
Business English / Interview Preparation / Test Preparation / Document Editing / Proof Reading / Writing Assistance / Correction
B1 - C2Language Essentials7 lessons completed
USD 12.00+
Package with 6% off
Pronunciation Class
A1 - C2Conversation0 lessons completed
USD 10.00+
Customized 10 lessons
A1 - C2Language Essentials0 lessons completed
USD 11.00+
Package with 3% off
Special Class
B1 - C1Conversation1 lessons completed
USD 35.00
Availability
Based on your timezone (UTC+00:00)
My creations
Quiz (41)
38 Reviews
lourdes de leon solo
6 English lessons
Teacher’s pick
She is an excellent teacher and truly one of the best. She provides very strong tools and practical elements to help you improve your English with confidence. Her guidance makes a real difference, especially in real-life and professional situations. I highly recommend her.
Jan 6, 2026
🍭 Anna姌🍒
56 English lessons
Teacher’s pick
Callista is a very patient and friendly person . I really enjoy the time talking to her.
Jan 21, 2025
Riha
1 English lesson
굉장히 친근하고 스토리텔링 수업이 좋았어요
Jan 23, 2026
Isabel Lobato
7 English lessons
Teacher’s pick
La clase con Callista es amena, utiliza herramientas para que comprendas algunas palabras, lo que hace que aprendas sin darte cuenta.
May 26, 2025
aki
1 English lesson
I really liked her teaching style and the way she encouraged me to speak actively.
Feb 15, 2026
lourdes de leon solo
6 English lessons
She explains everything clearly and makes you feel confident.
Jan 3, 2026
Trial Lesson
USD 5.00
Your final payment will be made in USD