Practice-cum The Workbooks series for grades 1 to 8 emphasizes the importance of activity-based learning and comprehension. It has a large number of questions that are organized in a progressive order of difficulty, giving students plenty of opportunities to use their knowledge and skills. The following are examples of smart features: Riddle Time consists of riddles that are based on the learner's comprehension of ideas and are designed to increase thinking abilities. Word Games - application-based questions to help you put what you've learned into practice.