Roselyne Otieno
TEACHER OF BIOLOGY AND CHEMISTRY
Nairobi
Summary
A passionate Biology and Chemistry educator with 10+ years of teaching in the International system of Education. Registered under the Teachers Service Commission in Kenya (TSC No: 873481). Committed to fostering learner exploration through inquiry-based methods. Demonstrated ability to teach, motivate, and guide learners. Thrives in high-performing team environments. Goal is to create a positive and energetic atmosphere that promotes peak performance.
Overview
12
12
years of professional experience
22
22
years of post-secondary education
3
3
Languages
5
5
Certificates
Work History
Assistant Examiner
Cambridge Assessment International Examination
12.2024 - Current
- Assistant Examiner, marking the work of approximately 600 candidates taking the examination in IGCSE (9-1) 0610/41, 0970/41 Biology Theory Extended (Assessor)
- Assisted in creating a more accurate evaluation system for better results interpretation and decisionmaking.
DEPUTY PRINCIPAL- CI SCHOOL
Rose of Sharon Academy
01.2021 - 01.2025
- Spearheaded initiatives to uphold and continuously improve academic standards, with a strong focus on curriculum delivery, learner outcomes, and staff performance.
- Fostered and maintained strong, collaborative relationships with parents, students, and staff, ensuring alignment in academic expectations and learner support.
- Provided mentorship and leadership to interns and new teachers, promoting instructional excellence and ensuring effective substitute coverage when needed.
- Proactively accepted responsibility for academic and operational tasks, while delegating efficiently to support smooth institutional operations.
- Taught Biology and Chemistry in Key Stages 3 and 4, driving subject mastery and preparing learners for international examinations.
- Designed and implemented strategic timetabling, maximizing instructional time and balancing staff workloads.
- Ensured the quality and rigour of assessments, aligning them with Cambridge standards and tracking performance for continuous improvement.
- Played an active role in discipline management, promoting a safe, respectful, and academically focused school culture.
HEAD OF SCIENCE DEPARTMENT
Muthangari International School
01.2018 - 01.2021
- A teacher of biology and Chemistry to students in Key Stage 3 and 4.
- Preparing and updating lesson materials: Schemes of work and Lesson plans, in line with the Curriculum requirements.
- Monitoring the Quality and standards of assessments within the department.
- Participating in meetings aimed at sharing experiences and ideas for improvement of the institutions.
TEACHER OF BIOLOGY AND CHEMISTRY
Excelsior Education Services
01.2016 - 01.2018
- Teaching IGCSE Biology and Chemistry to learners in year 9, 10 and 11.
- Teaching As and A level Biology and Chemistry to learners in year 12 and 13.
- Prepared candidates for the Cambridge International Examinations.
- Assisted students who needed extra help outside the class.
BIOLOGY AND CHEMISTRY TUTOR
Mattz Education services
01.2013 - 01.2016
- Prepared students for examination in international curricula including British curriculum (Edexcel and Cambridge Examinations) and American system of education (MYP and IB).
- Developed revision programs for students with learning difficulties.
- Planning Assessment with learning in mind and using various assessment techniques to provide the learners with meaningful feedback.
Education
MASTER OF SCIENCE - Plant Physiology and Biochemistry
University of Nairobi
Nairobi 01.2018 - Current
BACHELOR OF EDUCATION - Science, Biology and Chemistry
University of Nairobi
01.2009 - 01.2013
CERTIFICATE IN INFORMATION TECHNOLOGY - undefined
Kenya Institute of Computer Studies
01.2008 - 01.2009
KENYA CERTIFICATE OF SECONDARY EDUCATION - undefined
Kisumu Girls' High School
01.2004 - 01.2007
KENYA CERTIFICATE OF PRIMARY EDUCATION - undefined
Pinocchio Academy
01.1996 - 01.2003
Skills
Committed to quality
Personal Information
Full Name: Roselyne Otieno
Phone: +254 700440479
Email: rosslynnakothe@gmail.com
Location: Nairobi, Kenya
Nationality: Kenyan
Certifications Courses
- Active Learning: From theory to Practice
- Differentiation, Inclusion and Engagement
- Language awareness for bilingual and international schools
- Assessment for learning
- Lesson Planning: Planning for learning
Accomplishments
- Over a decade of experience in both teaching and academic leadership, with a consistent record of delivering high-quality instruction within the international curriculum.
- Successfully prepared candidates for Common Entrance, Lower Secondary Checkpoint, IGCSE, and A Level examinations, demonstrating curriculum versatility and effectiveness across multiple key stages.
- Achieved an 87% pass rate in IGCSE Biology and a 100% pass rate in IGCSE Chemistry, with all successful candidates attaining grades within the A*– C band, reflecting strong subject mastery and focused exam preparation.
- Presented candidates for the 2024 April series of Lower Secondary Checkpoint Science Assessments, where learners excelled, some attaining full marks (50/50) in Science, highlighting excellence in both content delivery and assessment readiness.
- Experienced in teaching Science, Biology, and Chemistry to advanced levels, with a strong focus on academic rigor, conceptual clarity, and learner engagement.
- Demonstrates a keen interest and ability in Mathematics, frequently supporting learners beyond the standard curriculum to reinforce core concepts and boost performance.
- Known for flexible instructional strategies, strong results, and a personalized teaching approach that empowers students to excel according to their individual strengths.
- Guided by the belief that academic excellence is achieved by intrinsically motivating each learner—encouraging them to take ownership of their learning and consistently strive toward their full potential.
Key Accomplishments
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
swipe to browse
Languages
English
Advanced (C1)
Swahili
Advanced (C1)
French
Elementary (A2)
Work Preference
Work Type
Full TimePart TimeContract WorkWork Location
RemoteOn-SiteImportant To Me
Personal development programsHealthcare benefitsCareer advancementCertification
Lesson Planning: Planning for Learning
Software
Microsoft Office Suite – Proficient in Word, Excel, PowerPoint, and Outlook for academic planning, data analysis, and reporting
Google Workspace – Skilled in Google Docs, Sheets, Slides, and Classroom for collaborative teaching and resource sharing
Smart Shule – Experienced in managing learner assessments and academic data using the Smart Shule platform
Zoom / Microsoft Teams – Proficient in facilitating online lessons, meetings, and webinars
PDF Tools (eg, Adobe Acrobat, PDF Reader) – For managing student reports, assessments, and editable documents
Learning Management Systems (LMS) – Familiar with platforms used for assignment tracking, student communication, and blended learning
Quote
There is a powerful driving force inside every human being that, once unleashed, can make any vision, dream, or desire a reality.
Tony Robbins
Interests
Mentoring students to discover and develop their unique strengths
Timeline
Active Learning from Theory to Practice
10-2025
Assistant Examiner
Cambridge Assessment International Examination
12.2024 - Current
Lesson Planning: Planning for Learning
10-2021
Language Awareness for Bilingual and International Schools
10-2021
Assessment for Learning
10-2021
Differentiation, Inclusion and Engagement
10-2021
DEPUTY PRINCIPAL- CI SCHOOL
Rose of Sharon Academy
01.2021 - 01.2025
HEAD OF SCIENCE DEPARTMENT
Muthangari International School
01.2018 - 01.2021
MASTER OF SCIENCE - Plant Physiology and Biochemistry
University of Nairobi
01.2018 - Current
TEACHER OF BIOLOGY AND CHEMISTRY
Excelsior Education Services
01.2016 - 01.2018
BIOLOGY AND CHEMISTRY TUTOR
Mattz Education services
01.2013 - 01.2016
BACHELOR OF EDUCATION - Science, Biology and Chemistry
University of Nairobi
01.2009 - 01.2013
CERTIFICATE IN INFORMATION TECHNOLOGY - undefined
Kenya Institute of Computer Studies
01.2008 - 01.2009
KENYA CERTIFICATE OF SECONDARY EDUCATION - undefined
Kisumu Girls' High School
01.2004 - 01.2007
KENYA CERTIFICATE OF PRIMARY EDUCATION - undefined
Pinocchio Academy
01.1996 - 01.2003
Similar Profiles
Nikhita ChiranjeeviNikhita Chiranjeevi
Senior Project Coordinator at Cambridge University Press & AssessmentSenior Project Coordinator at Cambridge University Press & Assessment
HEI YEUNG FELIX WONGHEI YEUNG FELIX WONG
Warehouse Operative at Adecco, Cambridge University Press and AssessmentWarehouse Operative at Adecco, Cambridge University Press and Assessment
Jackson ChangalaJackson Changala
Interlocutor – Occupational English Test (OET) at Ever Better Value (cambridge boxhill language assessment)Interlocutor – Occupational English Test (OET) at Ever Better Value (cambridge boxhill language assessment)
Grace NgigiGrace Ngigi
Process Engineer at Tetra PakProcess Engineer at Tetra Pak
MARTHA KAJWANG'MARTHA KAJWANG'
Legal Researcher at Amsterdam Law ClinicLegal Researcher at Amsterdam Law Clinic