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This presentation will help to teach kindergartners subtraction. Best for late in the year teaching.

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- 1. KINDERGARTEN SUBTRACTION UNITMichelle Curmi-GouldEDU 653 Read-Write-WebMay 11th, 2013
- 2. KEY CONCEPTS AND SKILLS Develop and use strategies for solving subtractionproblems using concrete objects. Begin to understand the meaning of subtraction. Think about the combinations of digits used to writenumbers. Find equivalent names for numbers. Use clues to develop strategy and fluency.
- 3. COMMON CORE STANDARDS-KINDERGARTEN SMP1 SMP2 SMP4 SMP5 SMP6 K.MD.1 K.CC.7
- 4. SUBTRACTION SIGN (SYMBOL) This is the subtraction symbol. When you see it,you are making a bigger number smaller.-
- 5. EQUAL SIGN (SYMBOL) This is the equal sign. It is also a symbol. This iswhat we use when we want to show the answer toa problem.=
- 6. WHAT IS SUBTRACTION? Subtraction is when you take a number and make itsmaller by using another number.Start with 3 objects take away 1 and how manyobjects do you have left?- =
- 7. WHAT IS SUBTRACTION? SLIDE 2 You are right! The answer is 2.3 - 1 = 2- =
- 8. LET’S TRY ANOTHER ONE! Start with 4 bears, subtract 2 bears, how many doyou have left?4 - 2-
- 9. HOW MANY BEARS ARE LEFT? You are right…the answer is 2!- =
- 10. CLICK AND DRAG THE DINOSAURS TOSOLVE THE PROBLEMS.---===-----------------------------------------------------------------------------------------------
- 11. LET’S PRACTICE Go to the website below. Click on: Learning Subtraction Game Title: Optional Minimum Number 0 Maximum Number 10 Bottom Minimum Number 0 Bottom Maximum Number 5 Pick and object: circle or rectangle Problems will appear. Click on answer. Cow bell willring if right and a buzzer will ring if incorrect. softschools.com
- 12. IXL IXL is a subscription based website where you canpractice your math skills. http://www.ixl.com/math/kindergarten Click on the kindergarten subtraction link and getstarted.
- 13. SUBTRACTION GAMES Guess my numberWrite a number on a slate, but do not let the children see the number. Invitethe class to guess the number, based on one or more clues you give. Usedifferent types of clues, such as those that involve simple addition,subtraction, place value or other information: The number that is 2 less than 5 The number between 7and 9 A number in the teens with a 6 in it A number with 2 and 4 as the digits Another number with 2 and 4 as the digits The number of legs on a chair The number that is 1 less than 6 The number that is 1 less than 10 The number of wheels on a car The number that is 2 less than 8
- 14. SUBTRACTION GAMES Subtraction Top-itRequires a deck with 4 each of number cards 0-5 to practice differences forfacts within 5. Students will flip 2 cards at-a-time taking turns to determinethe difference between the 2 numbers. When a student gets the answercorrect, they get to keep the 2 cards. The student with the greatest amount ofcards at the end is the winner.
- 15. SUBTRACTION GAMES Dice subtractionPlayers use pairs of customized dice labeled 0-5. Players roll their own dice,subtract their lower numbers from their higher numbers, and announce thedifferences. The player with the larger difference marks a tally on a scrappiece of paper.
- 16. MATERIALS Counters Cards with number 0-5 each deck containing 4 ofeach number. Customized dice labeled 0-5. Scrap paper and pencils.
- 17. REFERENCE Everyday Mathematics, McGraw-Hill Education,Copyright 2012. The McGraw-Hill Companies, Inc. Softschools.com, 2005-2013. IXL Learning, IXL.com, 2013.

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