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# Unit Overview: Exploring calculation strategies within 20

## Lessons:

5 lessons

### Using number bonds when subtracting

In this lesson, we will be subtracting numbers within 20.

• 1 Quiz
• 12m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Using doubles to calculate near doubles

In this lesson, we will use our doubling knowledge to support with calculations within 20

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

### Using the 'make ten' strategy

In this lesson, we will use the 'make ten' strategy to solve calculations

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

### Understanding that the = symbol represents equivalence

In this lesson, we will gain an understanding of the = symbol

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

### Choosing calculation strategies to solve calculations

In this lesson, we will use various strategies to solve calculations within 20

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