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Addition Subtraction Function Machines

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PRODUCT DESCRIPTION

Each activity has 10 cards with different function machines, otherwise known as Candy Machines in these activities. The cards target addition and subtraction to 20.

Candy Machine ~ What’s My Rule? is an activity designed to have students look for patterns and then identify the rule for the In/Out Boxes. 10 cards included. Math tools might be helpful for some students.

Candy Machine ~ Working or Broken? is an activity students really enjoy, especially when a Candy Machine is broken! For this set of cards, students have to determine if the pattern or rule for the Candy Machine is followed for each set of numbers in the In/Out Boxes. More than one set of numbers might make a Candy Machine broken. 10 cards included. Math tools might be helpful for some students.

Suggested Uses for These Cards:
•These cards can be used during small group instruction where Math Talk allows students to discuss the different methods they used to identify the pattern or rule. These cards can be placed in plastic sheet protectors for students to record their individual thinking first.
•Both of these activities can be used in a center where students record their answers on recording sheets. Each activity has two different versions of a recording sheet. In this way, some quick differentiation can be provided to extend learning.
•Post these cards around the room and have students walk-the-room and record answers on recording sheets.

Blank cards are included for students to create their own cards and then switch with a classmate or add to a center for additional practice.

These activities can be used with first graders as they continue to explore adding and subtracting up to 20. They can be used with highly capable kindergarten students who may need some enrichment and already have a conceptual understanding of adding/subtracting beyond 10. These activities also can be used at the beginning of the year for second graders.

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