Weighted Numbers - Set of 10

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Product Overview
The perfect scale accessory!
  • Plastic numbers 1-10 are weighted in increasing 5 g increments, from 5-50 g
  • Teaches number value, weights and other early number skills
  • Use with a balance scale to visually demonstrate simple math equations (e.g. 2 is less than 8, 2 + 4 = 6)
  • Odd and even numbers are color-coded blue and red
  • Each number name is written on the back to reinforce word recognition
  • 2"W x 3"H x 1/2"D each
PreK-K Core Standards
  • MAT (P) With support, begin to understand that items can be measured (e.g., weight, length).
  • 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).

K-3 Core Standards
  • K.MD.A.2 Directly compare two objects with a measurable attribute in common, to see which object has ômore ofö/ôless ofö the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter.
  • 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.
  • 1.OA.B.3 Apply properties of operations as strategies to add and subtract. Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
  • K.OA.A.1 Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
  • K.OA.A.4 For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
  • 1.OA.D.7 Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

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