Key Features :
i : MASTER CLOCKS IN NO TIME -- Use this demonstration analog clock to teach time. The large size is perfect for group lessons about time concepts.ii : LEARN MINUTE AND HOUR RELATIONSHIPS -- Hidden gears in each clock ensure the hands always display correct minute and hour relationships. Manipulate the hands to demonstrate this concept.iii : EASY TO READ -- These clocks feature easy-to-read markings on a bright yellow surface. Help children explore 1-minute and 5-minute intervals.iv : FOSTER EARLY MATH SKILLS -- Develop essential math skills by adding, subtracting and counting minutes and hours.v : PERFECT SIZE FOR DEMONSTRATION -- At 11.8" dia., this learning clock is perfect for group demonstrations. Children can gather around and easily follow the large hands.vi : DESIGNED TO LAST -- Made from durable plastic, this teaching is built to last for years of home and classroom use. Keep one with your teaching or homeschool supplies.