This is an article we highly recommend you read. Summer boredom can be a great thing for kids. Boredom can actually help a child become more self reliant.
https://qz.com/704723/to-be-more-self-reliant-children-need-boring-summers/
Nurturing the whole child
"My 5 year old son has excelled in so many different areas, it's truly amazing. The love, guidance and care from his Glendale Montessori teacher is priceless."