There are 3 phase of the study. This registration is phase 2.2. This registration will conduct a randomized controlled trial study in the cerebral palsy children. Due to the limitation of period of time of grant, we changed the study type into pilot-randomization. Our new method of study will collect all of our study which previously separated into pilot and randomized controlled trial in just only one study "pilot-randomization".

Inclusion Criteria:

• Spastic cerebral palsy aged 10-15 years
• Sufficient cognitive/attention capacity to understand basic instructions
• Can cooperate with the therapist for short period of time during training
• Manual Ability Classification System (MACS) 2-3
• Zancolli classification of the affected upper extremity was grade I-II.
• Give the informed consent

Exclusion Criteria:

• Inability to understand the instruction and follow the task
• Severe comorbidities, visual or auditory impairment
• Had history of Botulinum toxin injection on the affected upper extremity for last 6 months or receive the injection during the study time
• Other treatment options planned on the affected upper extremity during the study time
• Wear daytime orthosis on the affected limb
• Zancolli classification of the affected hand was grade III.
• Got an epilepsy or convulsive condition
• Denied to give the informed consent or continue the study

I plan to share the result with the statistician and some researcher for the analysis. The sharing could not be track to the patient identification.

after harvesting the data within 3 months