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Maurici Carbó Jordi  
Math teaching resources built by architects include base 10 block manipulatives; a block construction toybox; a logic construction toybox; an area workshop; and MathCats balance. See, in particular, Nummòlt's openended obbl & math toys: adding apples and oranges (mental algebra, with a prealgebra tool that introduces  


Levels:  Late Elem. (35), Middle School (68), High School (912) 
Languages:  English 
Resource Types:  Problems/Puzzles, Web Interactive/Java 
Math Topics:  Basic Algebra, Arithmetic/Early Math, Logic/Foundations, PreCalculus 
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