Below is a recommended sequence for Marcy Cook books for utilizing number tiles.  The books are listed in sequential order from younger grade levels to higher grade levels. BOOKS UTILIZING NUMBER TILESK - 1    EARLY SKILLBOARD MATHK - 2    MIX AND MATCH NUMBERSK - 2    LOOK & LISTK - 2    SEEING AND SHOWINGK - 3    CRAYON LOGICK - 2     LOOK AND SHOW YOUR THINKINGK - 3    SHAPES & LOGIC: YOUNG GEOMETRYK - 6    TILING FOR ALL1 - 3    SKILLBOARD MATH1 - 3    TURN OVER TILES TO FIND X1 - 3    BEGINNING WEIGHT LOGIC1 - 5    ACT IT OUT! LOGIC FOR YOUNG THINKERS1 - 8    MATH MODELS WITH MAGNETIC MATERIALS2 - 5    EARLY COMMUNICATING WITH TILES2 - 5    FIND THE X TILE2 - 5    FOLLOW THE CLUES WITH TILES2 - 5    MONEY LOGIC2 - 5    PLACE VALUE ALONE & TOGETHER2 - 5    WEIGHT WAYS2 - 5    WEIGHT LOGIC2- 5    THINK-N-TOUCH: HANDLES FOR PROBLEM SOLVING2 - 6    FIND THE NUMBERS AND WORDS 3 - 6    PLACE VALUE & NUMBER SENSE3 -7    SKILLBOARD MATH, BOOK 23 - 7    GEOMETRY LINE UP & BE ACCOUNTED FOR3 - 8    MENTAL MATH WITH TILES & THE HUNDRED CHART3 - 8    KNOW THE NUMBERS 4 - 7    DECIMAL PLACE VALUE & NUMBER SENSE4 - 8    FORM AN EQUATION4 - 8    COMMUNICATING WITH TILES4 - 8    ALGEBRAIC COMMUNICATING WITH TILES4 - 8    NUMBERS PLEASE! QUESTIONS PLEASE!4 - 8    TWO TOO: PLACE VALUE ALONE AND WITH A PARTNER4 - 8    MATH STARTERS & STUMPERS4 - 8    MORE STARTERS & STUMPERS4 - 8    CLUES & CUES: COOPERATIVE PROBLEM SOLVING4 - 8    COOP THINKING4 - 8    WEIGHT LOGIC, BOOK 24 - 8    FINDING X...ALGEBRA BEGINNINGS4 - 8    TILE TEASERS