PrimPak Transparency Deck

02030

Improve multiplication, division and factoring skills by playing with this unique deck of 171 transparency cards. Teachers play the game Prime Challenge with the whole class using an overhead projector. A very engaging activity for teams or individuals of ages 7 years to adult.

A team’s turn begins by viewing a foundation of 12 cards (or 9 cards at lower levels of play). Players in turn try to collect as many cards as possible by forming factor sets. A factor set consists of a result and the numbers that multiply to give that result. For example 28, 4 and 7 form a factor set because 28 = 4 x 7. A factor set can contain more than three cards. The numbers 60, 2, 2, 3 and 5 form a factor set because 60 = 2 x 2 x 3 x 5. Prime wild cards can be used for prime numbers only.

When a team takes a turn they may pick up as many sets as they see. Using the foundation shown here what is your best play? Try it. Notice the thinking involved.

The teacher as facilitator lays out the cards on the overhead. Taking turns, the teams have about 1 or 2 minutes to find the best play for that layout. They also write down the factor sets they plan to collect (in equation form if the teacher wishes) and hands it to the facilitator before time is up. The facilitator (or a team member) actually picks up the transparency cards from the overhead as indicated by the team. Pick up the result first then the numbers that multiply to give that result so that opponents can easily follow along.

The opponents are attentively watching for an opportunity to challenge if mistakes are made or factor sets are overlooked. See the rules pamphlet for a more detailed explanation of how the game progresses.

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