These pool table task cards provide excellent practice for the “decomposition” of numbers, a Common Core State Standard concept that is stressed in kindergarten and first grade. The following CCSS are addressed in this high-interest and engaging task card set:
-CCSS.Math.Content.K.NBT.A.1 Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings and record each composition or decomposition by a drawing or equation such as 18=10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.
-CCSS.Math.Content.K.OA.A.3 Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g. 5=2 + 3 and 5 = 4 + 1).
-CCSS.Math.Content.1.OA.A.1 Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
-CCSS.Math.Content.1.OA.C.6 Add and subtract, within 20, demonstrating fluency for addition and subtraction within10. Use strategies such as counting on; making ten (e.g., 8 + 6= 8 + 2 + 4=10 + 4 = 14; decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1= 10 – 1 =9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Each task card has a pool table with a certain number of striped balls and a certain number of solid balls. The students must determine how many balls are “inside” the pool table, having been “shot” into the pocket by a player. This type of “missing addend” problem solving is excellent practice for number decomposition, and offers multiple alternatives for number sentences. This packet includes:
• 68 task cards
• An answer key
• 2 types of recording sheets(one with more support/structure than the other)
• an explanation/information sheet including adaptations that you may choose to make according to the skill level of your class.
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CCSS Number Decomposition & Fact Family Pool Table Task Cards
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