Pre-K Star Math Manipulative

The design is for 15 star manipulative. 5 large blue stars, 5 medium green stars, 5 small yellow stars. All stars have holes in the center and can be stacked on one of two base boards. The design is based the book How to Catch a Star by Oliver Jeffers. The book provides the context for the math word problems that will be asked. The manipulative is tactile so students can use objects to think with. This manipulative is targeted to 3 and 4 year olds. It is designed to teach one-to-one correspondence up to 15, patterning, math vocabulary, and addition and subtraction.本教具为包含15颗星星的操作套装：包含5颗大蓝色星星、5颗中绿色星星与5颗小黄色星星。所有星星的中心均设有孔洞，可堆叠至两块底板中的任意一块。本教具的设计灵感源自奥利弗·杰弗斯（Oliver Jeffers）所著绘本《如何捕捉星星》（*How to Catch a Star*），该绘本为配套的数学应用题提供了情境背景。该教具具备触觉交互特性，便于学生借助实体物件开展具象化思考。本教具面向3至4岁儿童开发，旨在教授15以内的一一对应、模式认知、数学词汇以及加减法相关知识。