New interactive curriculum plans and website

# Unit Overview: Ratio

## Lessons:

8 lessons

### Groups

In this lesson, we will learn to use ratio notation to describe the composition of different groups.

• 1 Quiz
• 19m Video
• Presentation(PPT)
• Worksheet
• Transcript

### In the same ratio

In this lesson, we will learn to scale up from one group to 'many' groups and use multiplicative relationships to calculate unknown values in the 'many' groups.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Equivalent ratios

In this lesson, we will learn how to represent ratios pictorially and use these representations to justify the equivalence of ratios.

• 2 Quizzes
• 10m Video
• Presentation(PPT)
• Worksheet
• Transcript

### The rule of four

In this lesson, we will identify multiplicative relationships between 'times tables' and use patterns to solve problems in direct proportion contexts.

• 2 Quizzes
• 9m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Ratio and proportion in geometry I

In this lesson, we will compare the side lengths of triangles, one of which is an enlargement of the other, and calculate the ratios of the lengths of corresponding sides.

• 2 Quizzes
• 11m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Ratio and proportion in geometry II

In this lesson, we will divide oblique line segments into specified ratios by dividing the segment's horizontal and vertical displacements in the same ratio.

• 2 Quizzes
• 11m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Dividing into a ratio I

In this lesson, we will divide a quantity into a ratio of the form a : b and compare the relative sizes of the parts to each other and to the whole.

• 2 Quizzes
• 15m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Dividing into a ratio II

In this lesson, we will divide a quantity into a ratio of the form a : b : c and compare the relative sizes of the parts to each other and to the whole.

• 2 Quizzes
• 12m Video
• Presentation(PPT)
• Worksheet
• Transcript