Create interactive worksheets for children

We want to create interactive worksheets for children. Where students can input answers and there would be an automatic evaluation with scores on screen. What is the best programming language for this activity. We want to create 10 worksheets with 10 questions on each page. Activities on the interactive worksheet would be such as below: 1. Match the following - where students will have to drag a line to the answer. 2. Fill in the blanks. 3. Drop the correct answer in the bucket. The candidate and his team must have a complete knowledge of the programmig language that he proposes. He/ She should have done similar work in the past. Please do share examples of similar work. Skype voice contact is a must - because we will be discussing this briefly over the phone. Quote must be for 10 worksheets. We plan this as a continuous activity. We would be needing approximately 600 worksheets a month. So please give us a reasonable quote.