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The math you can draw a picture of - so this book draws every one.
Shapes to name at every rotation, rectangles on real grids for perimeter and area,
angles under drawn protractors, and rulers printed at TRUE SCALE so measuring practice
is real measuring - a ladder of 89 short sets that climbs from naming shapes to
computing with them. Every figure is drawn by our own code, precisely.
No wall of problems. Every page is a handful of small lettered blocks worth
100 points together, and figure pages give each drawing the room it needs.
An answer key you can trust, by construction. Every one of the 1,860 answers
was computed together with its figure and independently re-checked by a separate
program before printing.
Inside: