产品设计立意通过创设的＂观光游览＂游人上下车的动态变化产生的加减运算的问题情境，激发幼儿学习数学的兴趣，并在幼儿原有的10以内数的加减操作经验基础上，为幼儿独立学习设计了10加几得十几的题卡、11一20各数的组成和加减练习题卡和骰子游戏，帮助幼儿在亲自体验、摆弄实物的过程中理解20以内的进位加法和退位减法的含义。本产品力图满足对数学活动颇有兴趣和有挑战精神的幼儿能提供个性化发展的机会 ，人物设计上对幼儿＂敬老助残＂良好行为意识的培养提供了条件。这套产品是提高幼儿多位数计算能力的基础，是一套形象的、有趣的操作工具，亦是教师因人施教的良好帮手。
With its space for 20 passengers the opportunities for counting, sorting and arranging are endless. Counting to ten and then having any additional passengers moved up to the top deck is realistic to real-life and adds to the understanding of ‘base 10’ as a key mathematical concept. Components for the set are colour-coded and an icon on the top of the people counters tells you if the person represented is a man, woman, child, elderly or even disabled. A flip book with number challenges helps the children to remain focused upon the task in hand. And for an additional level of mathematics there are two dice which when thrown, set a task to move characters from upstairs to down or visa-versa, thus introducing the notion of adding or taking away to reach a solution. A wonderful resource which sets a real-world challenge and encompasses so much in terms of the basic mathematics being covered.
