Shixian Li

Montessori Skip Counting

Montessori Skip Counting is an innovative new incarnation of a classic "Montessori" math material, the Hundred Board. It uses the Hundred...

March 13, 2015 By Shixian Li

Subtraction 0-20 Flash Cards(All Facts)

Subtraction 0-20 Flash Cards contains 230 problems ranging from 1-0 to 20-20.Help tune up your child's subtraction skills for speed...

November 11, 2014 By Shixian Li

Addition 0-20 Flash Cards(All Facts)

Addition 0-20 Flash Cards contains 421 problems ranging from 1+0 to 20+20. Help tune up your child's subtraction skills for speed and...

November 11, 2014 By Shixian Li

Statistics Calculators

In basic statistics, students are required to calculate different statistical measures of a set of numbers. With this app, the following...

November 6, 2014 By Shixian Li

Hundred Chart

With Hundred Chart, children can developing a sense of number and learning about counting, number patterns, the properties of numbers....

September 15, 2014 By Shixian Li