Chapter 10 The Study Of Numbers Up To 1000—I .... 197 Exploring The Number System ................................................... 197  Learning The Fixed Procedures................................................... 198  The Study Of Numbers Up To 1ooo ............................................. 199  A Plan For The Discussion Of Numbers Up To 1ooo ................. 200  The Notation For Numbers Up To 1ooo Which Are Multiples Of 1oo ................................................................................................ 201  Multiplying (And Dividing) By 1oo And By 1o ............................204  The Notation For Numbers Which Are Multiples Of 10 .............204  Numbers Up To 1ooo Which Contain A Units Figure ................. 210  Some Special Exercises In The Study Of Numbers Up To 1ooo.. 218

Chapter 11 The Study Of Numbers Up To 1000—Ii ....221 Exploring Numbers Of Three Figures Which Are Not Multiples Of 10 ..................................................................................................222  Discovering Useful Products........................................................223  Doubling And Halving Numbers Up To 1ooo..............................224  Multiplying And Dividing By 2 ....................................................226  Multiplying By 5 ........................................................................... 227  Multiplying By 4, 8, 16, 32 And 64 ..............................................228  Multiplying By 20, 40, 80 And By 50 ..........................................229  Multiplication By 25.....................................................................230  Making Use Of The Ability To Double......................................... 231  Trebling Up To 1ooo And Dividing Numbers By 3...................... 231  Using Numbers In Any Series Of Trebles For The Study Of Multiplication And Division ........................................................232  Studying Remainders In Division................................................233  Applying The Ability To Treble To Multiplications By 6 And 9.. 233

The Cuisenaire Gattegno method of teaching Mathematics
The Cuisenaire Gattegno method of teaching Mathematics

The Cuisenaire Gattegno method of teaching Mathematics