It’s time to get your head out of the sand and focus on getting Junior ready for higher learning.Set the ToneThe end of those halcyon days of ice cream cones and free play can be a bummer. Keep the kiddies upbeat with There’s No Place Like School (Barnes & Noble, 1972 Broadway, at 66th Street; 212-595-6859; $17). Rhymes about lunchtime, making friends, and bus rides will warm up even the most reticent preschooler.Clean Up Their ActPut an end to sun-fried tresses at LuLu’s Cuts & Toys (48 Fifth Avenue, at Bergen Street, Park Slope; 718-832-3732; haircuts start at $22), a salon and toy shop that features old-timey barber shop chairs and school supplies galore.Pack It Full of LoveSend them off in style with a Bobo Choses backpack (Estella, 493 Sixth Avenue, between 12th and 13th Streets; 212-255-3553; $55). The colorful cotton bags are perfect for carrying treasures, snacks, and personalized Mini Lunch Notes (Exit9 Gift Emporium, 64 Avenue A, between 4th and 5th Streets; 212-228-0145; $10) with short, on-point missives like “I love you. Eat up. XO, Mom.”Stay One Step AheadBefore the whole birthday party/doctors’ appointments/after-school programming chaos hits, set up a Blueleo calendar. It lets you track multiple kids’ schedules, so you can start the year off in an organized way.Looking for the perfect lunch box? Check out our photo gallery.HEARBackporch Concert: Kiara Duran What: A musical evening on the lawn.Why: Duran’s pitch-perfect voice.When: Wed., 6:30-8 p.m.Where: Dyckman Farmhouse Museum, 4881 Broadway, at 204th St., Inwood (212-304-9422). Admission is free.INTERPRETMoving Through ArtWhat: Children ages 3-5 translate visual art into crazy poses, dances, music, and more.Why: Get them thinking and moving creatively.When: Fridays, 11 a.m.-noon.Where: Rubin Museum of Art, 150 W. 17th St., at Seventh Ave. (212-620-5000). Children, $10.WATCHJack & the BeanstalkWhat: This classic fairy tale comes to life through magical marionettes (ages 3 and up).Why: A live giant sighting.When: Sat. & Sun., 12:30 & 2:30 p.m.Where: The Puppetworks, 338 Sixth Ave., at 4th St., Park Slope. Tickets at 718-965-3391. Adults, $8; children, $7.Photos: Courtesy of HarperCollins Publishers; Courtesy of Chronicle BooksUp to 75% off MLHLynne Hiriak (of Cardigan fame) ups the knitwear ante with ’70s- and ’80s-inspired dresses and sweater tops with color blocks, sequins, and vintage-meets-modern shapes. Take up to 75% off on Swirl.