1. Increasing and Decreasing Quantities by a Percent
Projector Resources

2. Money Cards (1)
$100
$150
$160
$200

3. Collaborative activity 1
Take turns to place a percent card between each pair of money cards.
Explain your thinking clearly and carefully
- if you disagree with the placement of a card, challenge your partner.
3. It is important that each group member understands the math for each card placement.

4. Sharing work
One student from each group make a note of your group’s card placements and visit another group’s work.
Check to see which card placements are different to your own.
If you are staying at your desk, explain the reasoning behind your card placements.
Once back in your group, decide whether you want to make any changes to your work.

5. Percents, Decimals, and Fractions (1)

6. Percents, Decimals, and Fractions (2)