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# Basic Facts to 18

Strand: Number
Outcome: 10

## Step 2: Determine Evidence of Student Learning

### Guiding Questions

• What evidence will I look for to know that learning has occurred?
• What should students demonstrate to show their understanding of the mathematical concepts, skills and Big Ideas?

### Using Achievement Indicators

The following achievement indicators may be used to determine whether students have met this specific outcome. (It is not intended that students recall the basic facts but become familiar with strategies to determine sums and differences mentally.)

• Use and describe a personal strategy for determining a given sum.
• Use and describe a personal strategy for determining a given difference.
• Write the related subtraction fact for a given addition fact.
• Write the related addition fact for a given subtraction fact.

Some sample behaviours to look for in relation to these indicators are suggested for many of the instructional activities in Step 3, Section C, Choosing Learning Activities.