18
/
en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
248297
19908
2

sep 5, 2007 - I was taught how to do easy solving problems

Description:

At school, my teacher showed me a shortcut on how to solve math problems such as using my fingers to count. The stage is called CONCRETE OPERATIONAL.

Added to timeline:

9 Nov 2017
0
0
138
Timeline Project by Anthony Perla

Date:

sep 5, 2007
Now
~ 11 years ago

Images:

PayPal - The safer, easier way to pay online!logo
About & FeedbackTermsPrivacy