h. Number sense & Computation calisthenics

- link to      "What Do You Do With A Broken Calculator?" [running this applet requires Flash] and      "What Do You Do With A Broken Calculator?" [explanatory essay and background] Ordering   Ordering fractions - Mystery fraction search Exploring the Ordering of Fractions Assessing Understanding of Fraction Ordering   Between-ness with rational numbers Common Denominator Finder   Common Factor Finder   Tiling a Rectangle with Square Tiles Point on the coordinate plane   Binary Search: Looking for a needle in a haystack Estimating                                                                                Power drill - estimating products   DIY estimation - multiplication Power drill - estimating sums DIY estimation - addition  One Million Dollars  Place Value  Build a million numbers  Place Value  Decomposing addition & subtraction I   Place Value Decomposing Addition & Subtraction II   Why is (-2)x(-3) equal to +6 ? Place Value - Decomposing Multiplication   Power to the Base Computing   The Array Model of Multiplication Many-answer addition   Many-answer subtraction Inverse Prime Factoring   Between-ness in addition & subtraction Between-ness in multiplication & division   Adding & subtracting  uncertain measurements  What Do You Do with a Broken Calculator?   The Fraction Workbench UNcommon Denominators   Primal Problem Generator pRImE !   By All means! averaging 2 numbers   By all means! averaging 3 numbers   Multiplying & dividing uncertain measurements Broken Calculator [Flash]   The 1089 Puzzle   The Game of Arrows - adding signed numbers  See-Saw- Multiplying signed numbers       Transforming                        Chance Power drill - exploring factoring & FOIL     Plato's dice     Spinnners as "Super-dice"   mathMINDhabits by Judah L. Schwartz is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.