• This group will receive conventional UE therapeutic program for 60 minutes each session including:

• Exercises based on neurodevelopment technique .
• Gentle manual stretching
• Weight-bearing exercises for 10minutes for UE from prone lying, side sitting and quadriped position .
• Strengthening exercises for 10 minutes for muscles of UE as push-up from prone lying position, quadriped position, 3 point exercise, walk on hand, climbing, hanging on a bar, squeeze stress balls, cutting usescissors to strengthen hand .
• Goal directed training for 10 minutes the child will practice specific tasks that are needed for everyday life and which they find a challenge like (3 daily tasks as cleaning mirror, dressing and undressing, using pen and ruler to draw shapes, brushing teeth .
• Fine motor activities as reach, grasp, carry and release activities.

Children in this group will receive the same conventional UE therapeutic program as control group for 60 minutes in addition to virtual reality session using VRapeutic software gaming technology, Archeeko module (figure 3) for 30 min/3 sessions/week for 8 weeks

• This group will receive conventional UE therapeutic program for 60 minutes each session including:

• Exercises based on neurodevelopment technique .
• Gentle manual stretching for tight muscles of the affected UE from proximal to distal segments for 5minutes.
• Weight-bearing exercises for 10minutes for UE from prone lying, side sitting and quadriped position.
• Strengthening exercises for 10 minutes for muscles of UE as push-up from prone lying position, quadriped position, 3 point exercise, walk on hand, climbing, hanging on a bar, squeeze stress balls, cutting usescissors to strengthen hand .
• Goal directed training for 10 minutes the child will practice specific tasks that are needed for everyday life and which they find a challenge like (3 daily tasks as cleaning mirror, dressing and undressing, using pen and ruler to draw shapes, brushing teeth .
• Fine motor activities as reach, grasp, carry and release activities.

The IMU sensors will be used to detect changes in angular displacement of child arm, forearm (which allow 3D analysis of movements in three planes X.Y.Z), speed and direction.

Placement of Sensors: Two sensors will be placed on the affected side, one around the arm distal to shoulder joint and the other around the forearm distal to elbow joint. The third sensor will be placed around the trunk.

The child will be in standing position with head in neutral position, trunk erect. The examiner will ask the child to perform functional task in form of (reaching forward toward targets placed on wall in multilevel, hand over head).

will be administrated on an interview basis, the child will be asked to estimate their perception of the level of difficulty that faces during the performance of each activity in the list on a three-point ordinal scale of impossible, difficult, easy. Activities will be presented in random order to avoid any systematic effect. Activities not attempted in the last 3 months are not scored and are entered as missing responses (tick the question mark).