NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 2 results Save | Export
Louis, Everett; Flores, Alfinio; Sophian, Catherine; Zbiek, Rose Mary – National Council of Teachers of Mathematics, 2010
How do composing and decomposing numbers connect with the properties of addition? Focus on the ideas that you need to thoroughly understand in order to teach with confidence. The mathematical content of this book focuses on essential knowledge for teachers about numbers and number systems. It is organized around one big idea and supported by…
Descriptors: Number Systems, Mathematical Concepts, Mathematics Instruction, Pedagogical Content Knowledge
Peer reviewed Peer reviewed
Direct linkDirect link
Barth, Hilary; Beckmann, Lacey; Spelke, Elizabeth S. – Developmental Psychology, 2008
Do children draw upon abstract representations of number when they perform approximate arithmetic operations? In this study, kindergarten children viewed animations suggesting addition of a sequence of sounds to an array of dots, and they compared the sum to a second dot array that differed from the sum by 1 of 3 ratios. Children performed this…
Descriptors: Kindergarten, Arithmetic, Reading Instruction, Young Children