Sushant Kesavan, 3, catches a rubber ball as his class plays outside March 21 during a session with the Buffalo Grove Park District's preschool program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Lindsey Perino, 3, dances to The Beatles during a session with the Buffalo Grove Park District's preschool program at the Alcott Center on March 21. | Ruthie Hauge~Sun-Times Media

Hannah Haas, 5, and Jacob Moodhe, 5, press on blue dough as they look at the book, "Fossil Detective" by Joyce Pope March 21 during a session with the Buffalo Grove Park District's "Discovery Kids" kindergarten program. | Ruthie Hauge~Sun-Times Media

Aadanya Rai, 2, applies a purple glue stick to construction paper as she creates a paper crab collage March 21 at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Three-year-olds (clockwise from lower left) Lindsey Perino, Anoushka Rai, Sota Okumara and Elly Abrams make paintings March 21 during a session with the Buffalo Grove Park District's preschool program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Sota Okumara, 3, fills a sheet of paper with orange paint during a March 21 session with the Buffalo Grove Park District's preschool program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Elly Abrams, 3, wobbles on a pair of plastic high heels as she dances to The Beatles March 21 during a session with the Buffalo Grove Park District's preschool program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Three-year-olds Jordan Dudek, Sushant Kesavan, Kayla Gdula, Evan Fischer and Taha Sulaiman kick rubber balls down a hill during the Buffalo Grove Park District's preschool program March 21 at the Alcott Center. | Ruthie Hauge ~ Sun-Times Media.

Chole Robinson, 5, turns-in her finished dinosaur drawing to her teacher March 21 during a session with the Buffalo Grove Park District's "Discovery Kids" kindergarten program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Seth Arnold, 5, traces a dinosaur stencil during the Buffalo Grove Park District's "Discovery Kids" kindergarten program at the Alcott Center. | Ruthie Hauge~Sun-Times Media

Four-year-old students watch their teacher as she shares each students' handmade book with the class March 21 during the Buffalo Grove Park District's preschool program at the Alcott Center. | Ruthie Hauge~Sun-Times Media