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Alberta Math 20-3 (Math 20-3) curriculum and lessons
Browse the complete Math 20-3 expectation map, with starter examples and practice. Written lessons are added only after quality review and publication.
Course overview
Alberta Math 20-3 curriculum at a glance
This independent guide covers Mathematics 20-3 (Math 20-3). Its 5 course sections lead to the complete topic map below; open a written lesson where one has been published. Read the official course curriculum for exact requirements.
این راهنمای مستقل دربارهٔ ریاضی ۲۰-۳ آلبرتا (Math 20-3) است. از بخش‌های زیر برای پیدا کردن موضوع مورد نظر و درس‌های منتشرشده استفاده کنید. برنامهٔ درسی رسمی
- M · Measurement (اندازه‌گیری)
- G · Geometry (هندسه)
- N · Number and money (عدد و امور مالی)
- A · Algebra (جبر)
- S · Statistics (آمار)
Course questions
Studying Math 20-3: topics, lessons, and official requirements
The course map includes Measurement, Geometry, Number and money, and 2 other sections. Follow the complete section list above for the full study path.
درس ریاضی ۲۰-۳ آلبرتا چه مباحثی دارد؟ از جمله مباحث این درس اندازه‌گیری، هندسه، عدد و امور مالی است. فهرست کامل بخش‌ها در بالای صفحه قرار دارد.
12 of 15 written lessons are currently published and free to read. Open a linked lesson in the section map above. Check the official course source for exact requirements.
درس‌ها و برنامهٔ درسی ریاضی ۲۰-۳ آلبرتا را از کجا پیدا کنم؟ اکنون 12 درس از 15 درس نوشتاری منتشر شده و خواندن آن‌ها رایگان است. درس‌های دارای پیوند را در نقشهٔ بخش‌های بالا باز کنید. برای شرایط دقیق به منبع رسمی درس مراجعه کنید.
Publication status
12 of 15 written lessons published
The topic map covers the course expectations. A topic marked “written lesson not published” remains available for practice and tutoring, but does not have a reviewed written lecture yet.
Free published lessons
Start learning Math 20-3
These lessons are public, free to read, and connected to the full course map below.
A storage bin, a water tank, and a shipping box all take up space. The amount of space inside a solid container is its volume. The…
A ramp, cable, or route across a sloped site can involve more than one right triangle. The triangles may share a side, or a length…
Numerical puzzles and games have rules that limit which answers are possible. The goal is not to guess quickly. It is to use the…
Slope describes how one quantity changes as another quantity changes. A ramp rises as horizontal distance increases. A cyclist’s…
Graphs turn data into a picture that is easier to read. A workplace team might compare how many items were packed on different…
A scale drawing shows a real place or object at a different size. A floor plan might show a room on a page, or a map might show a…
People may save money for a future purchase, or a workplace may set money aside for equipment. When interest is added to an account…
A proportional problem links two quantities that change at a steady rate. For example, if a machine fills the same number of bottles…
Math 20-3
Topics by strand
Measure surface area, volume, and capacity in practical SI and imperial contexts.
- M1 · Solve and verify surface-area problems with SI and imperial units (written lesson not published)
- M2 · Solve volume and capacity problems with SI and imperial units (published written lesson)
Use linked right triangles, scale drawings, and clear views of simple 3-D objects.
- G1 · Solve problems involving two or three right triangles (published written lesson)
- G2 · Solve practical scale and scale-diagram problems (published written lesson)
- G3 · Model 3-D objects and draw their top, front, and side views (published written lesson)
- G4 · Draw and describe simple exploded views and scaled components (published written lesson)
Reason through puzzles, budgets, interest, banking services, and credit decisions.
- N1 · Use and verify strategies for numerical puzzles and games (published written lesson)
- N2 · Build, analyze, and adjust a personal budget (written lesson not published)
- N3 · Explain and calculate compound-interest growth (published written lesson)
- N4 · Compare services used to access and manage finances (published written lesson)
- N5 · Compare credit-card and loan options in context (published written lesson)
Apply workplace formulas, visualize slope, and reason proportionally with units.
- A1 · Apply and rearrange practical measurement and finance formulas (written lesson not published)
- A2 · Interpret slope as rise over run and as a constant rate (published written lesson)
- A3 · Solve proportional problems using unit analysis (published written lesson)
Choose, create, and critically read bar, histogram, line, and circle graphs.
- S1 · Create and interpret bar, histogram, line, and circle graphs (published written lesson)
Worked examples
Start with worked Grade 11 examples
These original examples introduce selected Math 20-3 expectations. The full expectation map is not a complete set of published written lessons or a substitute for official course materials and assignments. The strand-prefixed labels below identify the matching Ontario specific expectations; titles are concise study-guide paraphrases.
A closed 2 m by 3 m by 1 m box needs paint on all six outside faces. What area must be painted?
Worked method: The three face pairs have areas 6, 3, and 2 m². Total surface area is 2(6 + 3 + 2) = 22 m².
فارسی · توضیح مثال
جعبهٔ بسته‌ای با ابعاد ۲ در ۳ در ۱ متر، روی هر شش وجه بیرونی رنگ می‌خواهد. چه مساحتی باید رنگ شود؟ سه جفت وجه ۶، ۳ و ۲ متر مربع‌اند. مساحت کل ۲(۶ + ۳ + ۲) = ۲۲ متر مربع است.
Hypothetical monthly income is CAD 1200; planned spending is CAD 450, 300, 180, and 120. What remains?
Worked method: Total spending is CAD 1050; the remaining CAD 150 can be assigned to savings or an unexpected expense.
فارسی · توضیح مثال
در یک مثال فرضی، درآمد ماهانه ۱۲۰۰ دلار کانادا و هزینه‌ها ۴۵۰، ۳۰۰، ۱۸۰ و ۱۲۰ دلارند. چه مقدار می‌ماند؟ جمع هزینه‌ها ۱۰۵۰ دلار است؛ ۱۵۰ دلار باقی‌مانده را می‌توان برای پس‌انداز یا هزینهٔ پیش‌بینی‌نشده کنار گذاشت.
Try independently, then check
Write your own solution before opening each answer. If a step is unclear, review the matching expectation or a Grade 10 prerequisite.
A ramp rises 0.6 m over a horizontal run of 6 m. What is its slope as a percentage?
Show worked answer
0.6/6 = 0.1 = 10%.
فارسی · تمرین و پاسخ
سطح شیب‌داری در ۶ متر پیشروی افقی، ۰٫۶ متر بالا می‌رود. شیب آن چند درصد است؟ ۰٫۶/۶ = ۰٫۱ = ۱۰٪.
A 4 cm line on a plan represents 2 m per centimetre. What real distance does it show?
Show worked answer
4 × 2 = 8 m.
فارسی · تمرین و پاسخ
خطی ۴ سانتی‌متری روی نقشه، با مقیاس ۲ متر به ازای هر سانتی‌متر، چه فاصلهٔ واقعی را نشان می‌دهد؟ ۴ × ۲ = ۸ متر.
Mathematical processes across expectations
These processes are practised throughout the course, rather than listed as separate lessons.
- Estimate first, then calculate and explain whether the result is sensible for the job or purchase. (نخست تخمین بزنید، سپس حساب کنید و بگویید آیا نتیجه برای کار یا خرید معقول است یا نه.)
- Keep SI and imperial units separate until a stated conversion is applied; square or cube conversion factors for area or volume. (واحدهای متریک و امپریال را تا زمانِ به‌کاربردن تبدیلِ داده‌شده جدا نگه دارید؛ ضریب تبدیلِ مساحت یا حجم را مربع یا مکعب کنید.)
- Pause at each chart to ask what is measured, what is hypothetical, and what conclusion the chart does not prove. (در هر نمودار بپرسید چه چیزی اندازه‌گیری شده، کدام داده فرضی است و نمودار چه نتیجه‌ای را ثابت نمی‌کند.)
Source and coverage
Prerequisite: Mathematics 10-3. Confirm your current school timetable and admission requirements.
The expectation map follows the official Alberta course source. Titles are concise study-guide paraphrases; consult the official source for exact requirements. Browse all courses.
Sources and editorial process
Curriculum-aligned and reviewed before publication
This independent study guide follows the official course source. It is not an official government, school, or university publication.
Lessons may be AI-assisted or editorially prepared. Published content is checked for structure, notation, calculations, course boundaries, and readability before release. Because corrections can still be necessary, readers can report a problem.
Related courses and next steps
Review a prerequisite or explore a related course. Follow your school or university requirements when choosing your next course.
پیش‌نیازها و درس‌های مرتبط را مرور کنید و برای انتخاب درس بعدی، مقررات مدرسه یا دانشگاه را بررسی کنید.
- Math 30-3 · Mathematics 30-3 (Alberta) ریاضی ۳۰-۳ آلبرتا
- Math 20-2 · Mathematics 20-2 (Alberta) ریاضی ۲۰-۲ آلبرتا
- IB AA SL · Mathematics: Analysis and Approaches SL (International Baccalaureate (IB)) ریاضی: تحلیل و رویکردها سطح استاندارد
- Math 20-1 · Mathematics 20-1 (Alberta) ریاضی ۲۰-۱ آلبرتا
Get help while studying Math 20-3
Use the Math 20-3 lessons and topic map first, then try a question on your own. For example, bring an attempt from Measurement and Geometry and mark the first step you cannot explain. A live tutor can help you show each step of your attempt and compare it with a worked example; ask them to confirm they can support your particular course before booking a regular session.
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ابتدا درس‌ها و فهرست مباحث Math 20-3 را بخوانید و یک سؤال را خودتان حل کنید. نخستین گام مبهم را مشخص کنید تا در جلسه بتوانید گام‌های تلاش خود را نشان دهید و آن را با یک نمونهٔ حل‌شده مقایسه کنید. راهنمای معلم ریاضی را ببینید یا جلسهٔ معارفهٔ رایگان ۳۰ دقیقه‌ای درخواست کنید. دربارهٔ امکان تدریس همین درس از معلم تأیید بگیرید.