Here's a summary of the climax in Act 1:
1. Annie Sullivan's Arrival: Annie arrives at the Keller household, bringing hope for Helen's education and communication. However, Helen is resistant and unruly, having adapted to her world without understanding language.
2. The Water Pump Incident: Annie takes Helen to the water pump outside, determined to teach her the concept of language. She spells out the word "w-a-t-e-r" on Helen's hand, but Helen reacts angrily and refuses to cooperate.
3. Confrontation and Breakdown: Annie becomes frustrated with Helen's lack of progress and takes a more forceful approach. She holds Helen's hand tightly and repeatedly spells out the word "w-a-t-e-r," demanding that Helen understand.
4. Helen's Breakthrough: After a intense struggle and emotional breakdown, Helen finally connects the sensation of water flowing over her hand with the word "w-a-t-e-r." She experiences a breakthrough in her understanding of language, and her isolation begins to break down.
5. Triumphant Moment: Helen becomes ecstatic as she understands the concept of language and begins to communicate with Annie through touch. The climax culminates in a moment of joy and triumph for both Helen and Annie.
The climax of Act 1 in "The Miracle Worker" serves as a turning point in the play. It is the catalyst for Helen's journey towards education, communication, and ultimately, a more expanded and fulfilling life.