From Blocks to the Stack
Written directly for curious 3rd–6th graders, homeschool families, and teachers, From Blocks to the Stack bridges the gap between physical math manipulatives and computational fluency. It connects tactile 3D-printed math blocks with the four visible shelves of the StackCalc SC-6 number stack ($X, Y, Z, T$)—completely eliminating parentheses, syntax errors, and passive worksheet memorization.
Why Your Brain Already Thinks in a Stack →
How building with LEGO and stacking blocks taught your hands the stack before you ever saw an equation. Meet the four shelves ($X, Y, Z, T$).
Meet Your SC-6 Stack Calculator & Math Blocks →
The sunlit transflective display, tactile TPU keys, sliding dovetail tool-free chassis, and how blocks nest onto 42 mm desk trays.
Stacking Numbers Just Like Blocks →
The 4-story Number Elevator, automatic stack lift, `LASTX` error recovery, dyadic operations, and evaluating formulas from the inside out.
Ten-Frames, Number Lines & Place Value →
Ten-frame dot arrays (`▦`), the 20-bead Number Rack (`COUNT`), base-ten regrouping trades (`PV`), and jumps on the number line (`LINE`).
Tile Arrays, Skip-Counting & Remainders →
Multiplication tile arrays, skip-counting fact ladders (`REP`), and fair-share division with whole-number remainders (`÷R`).
Fractions, Decimals, Percents & Ratios →
Physical height comparisons with 84 mm Fraction Towers, step-by-step simplification (`SIMP`), common denominators (`LCM`), and decimals.
Shapes, 3D Boxes & Geared Clock Time →
Unfolding 2D shapes, 3D surface area with running accumulation (`Σ+`), and hands-on planetary clock gears (`🕒`).
Prime Numbers, Fair Dice & Data Detective →
17-year cicada prime cycles, prime factor towers (`FACT`), GCF and LCM comparator stages, polyhedral dice (`🎲`), and mean/MAD statistics.
Mental Math Tricks & The Quiz Game →
Eight visual mental-math shortcuts, plus 6 progressive difficulty levels of the built-in timed arithmetic fluency game (`?`).
Kitchen-Table Inventions & Maker Projects →
Weighing 3D-printed blocks, slicing printer layer heights, pendulum physics, recipe scaling, and testing compound gear reduction.
Need the Physical 3D Math Manipulatives?
Every chapter in From Blocks to the Stack corresponds to a physical manipulative kit. Order individual component refills, complete studio boxes, or classroom fleet packs on-demand through our official Slant 3D Portal, or 3D print them locally using our free open-source STL files.