Textbooks
OpenStax (USA) — Free, Peer-Reviewed Textbooks
openstax.org
What it offers: Free, peer-reviewed digital textbooks (maths, physics, biology, etc.). Used by tens of millions of students and widely adopted in 150+ countries.
Use in Bangladeshi classrooms: Download physics/chemistry chapters to enrich lessons; print key pages or diagrams; project figures during explanations.
Considerations: English, US-aligned; map topics to NCTB; provide Bangla explanations where helpful; ensure access via projector or print (long PDFs are hard on phones).
Notes, Videos, Quizzes
BBC Bitesize (UK)
bbc.co.uk/bitesize
What it offers: Short topic notes, animations, and quizzes for ages 5–16 across subjects.
Use in Bangladeshi classrooms: Use short clips (e.g., photosynthesis, grammar) as lesson starters; set home study or remedial tasks.
Considerations: UK-aligned; choose overlapping topics; explain UK-specific examples; ensure internet or pre-download videos.
Videos & Lessons
PBS LearningMedia (USA)
pbslearningmedia.org
What it offers: Free PreK–12 videos, lesson plans, and interactives; safe student portal.
Use in Bangladeshi classrooms: Play short science animations, literature excerpts, or maths videos to reinforce core content.
Considerations: Free account needed; English language; some US context; most clips are short (data-friendly).
Flexbooks & Practice
CK-12 (USA)
ck12.org
What it offers: Customisable “Flexbooks”, simulations, and auto-graded practice — especially strong for maths and science.
Use in Bangladeshi classrooms: Print algebra practice; project interactive periodic table; use app in labs for extra practice.
Considerations: English; US grade labels — pick equivalent levels; you can edit Flexbooks (even translate snippets).
Lesson Plans
BetterLesson (USA)
betterlesson.com
What it offers: Thousands of teacher-created lesson plans and strategies across K-12 subjects.
Use in Bangladeshi classrooms: Find complete units (e.g., creative writing, grammar) and adapt for SSC/HSC objectives.
Considerations: Free account for some content; US standards — align objectives and materials to your context.
Worksheets & Games
Education.com (USA)
education.com
What it offers: 30,000+ worksheets, games, and lesson plans (pre-K to middle school).
Use in Bangladeshi classrooms: Quick printable practice for primary maths/English; lab-based literacy games.
Considerations: Free signup; translate instructions verbally; convert units/currency to local standards.
Portal
Education World (USA)
educationworld.com
What it offers: General portal with lesson ideas, worksheets, and classroom tips across subjects.
Use in Bangladeshi classrooms: Adapt creative activities (e.g., local history “tour” of Dhaka landmarks).
Considerations: Quality varies — prefer “Lesson Plan” sections; adapt US holidays/contexts.
Curated
TeachersFirst (USA)
teachersfirst.com
What it offers: Ad-free, teacher-curated lessons, tools, and web resources with practical reviews.
Use in Bangladeshi classrooms: Find vetted interactives (e.g., solar system) or beginner coding activities.
Considerations: Check tech needs (projector/computers); some content US-specific — adapt contexts.
Teacher Training OER
TESSA — Teacher Education in Sub-Saharan Africa
tessafrica.net
What it offers: Open modules to improve classroom practice at scale — learner-centred methods and activity-based pedagogy.
Use in Bangladeshi classrooms: Use modules for staff workshops; adapt group-work ideas to large classes with limited resources.
Considerations: African scenarios — localise names/contexts; focus on pedagogy, not BD-specific content.
