Alisa was buzzing with excitement as she thought about the autumn disco day at school. She had been looking forward to it for weeks! But, as she stared at her wardrobe, her smile began to fade. She just couldn't decide what to wear. She wanted something sparkly and bright, something that would make her shine like a disco ball. "But what if I don't find anything I like?" Alisa thought to herself, her brow furrowed with worry. She decided to ask her mom for help. Mamwas a math whiz and loved solving problems. Together, they set out to find the perfect dress. As they walked down the high street, they stumbled upon a store with a big "SALE" sign in the window. Alisa's eyes widened with excitement. "This must be the place!" she exclaimed. Inside, the store was a treasure trove of colorful dresses, each one more dazzling than the last. Alisa tried on dress after dress, twirling in front of the mirror to see which one made her feel like a true disco queen. Mom helped Alisa count the number of dresses she tried on - 5, 6, 7... - and calculate the total cost of each dress with the sale discount. As they worked out the math, Alisa began to realize that the perfect dress wasn't just about looking good, but also about making smart choices. With Mom’s help, Alisa finally found the dress of her dreams - a sparkly, bright orange dress that made her feel like a true disco star!

Alisa twirled in front of the mirror, her eyes scanning every inch of her reflection. She was on a mission to find the perfect dress for her birthday party. Mom had given her permission to explore the fabric stores in the market, and Alisa was determined to find the one that made her feel like a princess. First, she visited the 'Cotton Candy' store. The shopkeeper, Mrs. Emma, showed her a beautiful cotton dress with tiny flowers embroidered on it. "Cotton is a natural fiber, Alisa," Mrs. Emma explained. "It's soft, breathable, and perfect for warm weather." Alisa loved the way the dress felt against her skin. "I love this cotton dress, it feels so soft!" she exclaimed. But when she tried on a silk dress at the 'Silk Road' store, her friends, Emma and Ryan, couldn't stop raving about how beautiful she looked. "You look lovely in that silk dress, Alisa!" Emma said. Alisa felt like a queen in the shimmering fabric. "Silk is made from silkworms, you know," the shopkeeper, Mr. Li, told her. "It's smooth, lustrous, and takes dye very well." When she got to the 'Poly Palace' store, she tried on a polyester dress that sparkled like diamonds. But it felt a bit stiff and didn't quite drape like the silk dress. "Polyester is a synthetic fiber, Alisa," the shopkeeper, Mrs. Patel, explained. "It's durable, easy to clean, and can mimic the look of other fabrics." After trying on dresses in all three stores, Alisa realized that each fabric had its own unique properties. She made a mental note to ask her mom about mixing fabrics to create the perfect dress. As she walked home, her mind buzzed with ideas, and she couldn't wait to start creating her own masterpiece.

Alisa twirled in front of the mirror, her eyes sparkling like diamonds. She had finally found the perfect dress for the Fairy Princess Ball, and it was love at first sight! The soft, silky fabric felt like a warm hug, and the intricate lace details made her feel like a real-life princess. "Yes! I found it! This is the one!" Alisa exclaimed, spinning around to show her mom. Her mom beamed with pride, but then glanced at her watch. "Alisa, sweetie, we need to hurry. The store is closing in 10 minutes!" Alisa's heart skipped a beat. She had to have this dress! She quickly tried it on, and it fit like a glove. As they rushed to the checkout counter, Alisa calculated the cost in her head. If the dress costs $25 and her mom gives her a 20% discount coupon, how much will she pay? Alisa's mind whirred with the math problem, but she solved it in seconds. "Mom, if we use the coupon, we'll pay $20!" Just as they finished paying, the store owner announced, "Last customer of the day! We're closing!" Alisa's mom smiled and gave her a quick hug. "You did it, kiddo! You persevered and found the perfect dress all by yourself." Alisa grinned, feeling proud of herself. "I did it! I found the perfect dress all by myself," she whispered to herself, her confidence blooming like a flower.

Alisa twirled around in her new dress, feeling like a sparkling star. She had been waiting for the autumn disco for weeks, and it was finally here! As she walked into the colorful school hall, the DJ's music made her feet start tapping. "This is the best day ever! I'm so happy I found that dress," Alisa exclaimed, beaming with pride. Her friends cheered and hugged her, admiring her shiny dress. "You look stunning, Alisa! You should wear that dress every day!" one of them said. Together, they danced to the funky beats, spinning and jumping like autumn leaves in the wind. There were even special autumn-themed games, like "Pin the Leaf on the Tree" and "Musical Pumpkins." Alisa and her friends laughed and played until their cheeks hurt. As the night went on, the DJ announced a special math challenge. "Who can calculate the number of pumpkins in this jar?" he asked, holding up a giant jar filled with orange pumpkins. Alisa's friend, Emma, quickly grabbed a piece of paper and started counting. "There are 25 pumpkins in the jar!" she exclaimed. The DJ cheered and gave her a prize. Alisa grinned, feeling proud of her friend's math skills. This autumn disco was not only a night to remember, but also a night to learn and have fun with her friends.

Alisa sat on her bed, surrounded by sparkling decorations and colorful balloons. The after-party was still buzzing in her mind. She thought about her incredible journey to find the perfect dress for the disco night. She remembered when she felt like giving up, but then she met her new friends who helped her solve math puzzles and science riddles to reach the dress. She recalled how they used geometry to reflect the light and find the hidden path, and how they applied the concept of buoyancy to cross the river. Alisa's heart swelled with pride as she thought about all the obstacles she overcame. "I did it! I found the perfect dress and had an amazing time at the disco," she exclaimed out loud. Then, she whispered to herself, "I learned that believing in myself is the most important thing of all." As she looked at the dress, now hanging in her closet, Alisa realized that the journey was not just about finding a dress, but about discovering her own strength and confidence. She felt proud of herself for staying true to her heart and for not giving up. With a big smile, Alisa drifted off to sleep, her heart filled with joy and her mind buzzing with excitement for the next adventure.