The above is a student in Standard 2 who joined Just-Math for about two month. When he initially join, he was not able to perform addition of 1 without using fingers for counting. He is now able to perform addition of 2, 3 and 4 reasonably well, however the mastery is still not very good. He will need to practice more to internalize the ability.
Student, Irfan, now in Standard 1, showing that he still needs more practice to improve this level of addition. This student joined about two months ago. He was not able to perform addition at all when he started. Today, he can perform addition of 2 and 3 without using fingers for calculation.