Math manipulatives & construction toys. Virtual toy boxes: math & science virtual sets. Open ended online teaching resources. + Collaboration with other educational pages: www.mathcats.com. Departament d'Ensenyament de la Generalitat de Catalunya: CREAMAT Main projects from nummolt.com: Math Garden & Kids Math Garden (2017) Fractions Scroll & Fractions Scroll Gravity Lever (2016) Place Value Time (2016) MathCats balance and Fractions balance (2016) Proper Fractions (2016) Touch Fraction ℚ (2015) Touch Integers ℤ (+ - × ÷) (2015) Touch decimals Place value ± (2015) Reading fractions (Android) (2015) Adding unit fractions (Updated Android version of Old Egyptian Fractions) (2014) Touch Natural Numbers (Android) (2014) Whole Calculator (long and short version) (2014) Time Elapsed Calculator (Android) (2002 - 2013) Camera patchwork (Mollweide camera)(Android) (Works in progress) Touch Pythagoras (Android) (2013) Touch Fraction (Android) (2013) - Equivalent fractions. Updated (2015) Old Egyptian Fractions (2003 - 2015 web version) (2013 Android version) (For: MathCats.com) How much pizza to order? (2012) (Web) NineDigits (2012) (Web & Android) (Rebuilt 2016) Biga for Android (2012) (Web & Android) Adding apples and oranges. (2012) (Web & Android) StatCats - Free web page statistics (PHP) (2012) nummolt modulo applet (2012) (Java) (works in progress) nummolt standalone program (1997) obbl_a1: Architecture blocks. obblog: Logic blocks. (obblog2: 2013) obbliq: Container blocs and math liquid. Now: "Math Water Table" (2013). obbl: Math tools: pre-algebra, little open ended games. cinemice: virtual old Cine Nic recreation.