Applications of Ratio and Proportion — الرياضيات الصف الأول الإعدادي لغات

الدرس ده من وحدة «Numbers and Their Operations» فى مادة الرياضيات لـالصف الأول الإعدادي لغات على منصة دروسات.

الدرس متاح بالاشتراك: ترم كامل أو المادة لوحدها.

ملخص الدرس

This lesson applies the concepts of ratio and proportion to solve practical problems involving scale drawings, proportional division, and percentage calculations. It covers how to calculate real lengths from scaled drawings and vice versa. The lesson also explains proportional division as a method to distribute quantities according to given ratios, and it explores percentage applications such as discounts and increases (taxes/profits). Real-life contexts like maps, engineering models, business investments, and shopping are used to demonstrate these applications.

هتتعلم إيه فى الدرس ده

• Scale drawings are used to represent real dimensions proportionally, and calculations can find real lengths, drawing lengths, or the scale factor itself.
• Proportional division distributes a total quantity into parts based on a specified ratio, where each part's value is calculated using a 'part value' (total / sum of ratio parts).
• Percentage applications include calculating discounts (finding the reduced price) and increases (finding the final price after adding tax or profit).
• These mathematical tools are applied in geography, architecture, business, and everyday life.