Video lecture of L20 Ratios and Proportions
L20 Ratios and Proportions
Video Length
31 min
Est. L.H.
3-4 hr
Language
Chinese
Due to the large size of the video file, loading may take several minutes. Your patience is appreciated.
Learning Objectives
- Understand and use ratio notation, including dividing quantities and combining ratios.
- Define, interpret, and calculate with percentages, including percentage change, original values, and applications like simple interest.
- Understand and use direct and inverse proportion, including their algebraic and graphical representations, and solve related problems.
- Apply concepts of scale factors and similarity to compare lengths, areas, and volumes.
- Solve problems involving real-world applications of ratios, proportions, and percentages such as mixtures, conversions, and concentrations.
- Set up and interpret solutions to growth and decay problems, including compound interest.
Lesson Practices
Practice:
Lesson Practice:
You don’t have access to this lesson
Please register or sign in to access the course content.
