本研究旨在探討用於提升發展遲緩兒童辦認大小能力之策略，以單一個案為研究對象，採行動研究。結果發現：運用「熊寶寶排列遊戲」能快速引導研究對象進入主題互動的學習情境；「兒歌唸唱」能增進研究對象辨別「大」與「小」的體積初步認知概念能力；執行「熊寶寶跳躍遊戲」促進研究對象的「大」與「小」的分辨與記憶能力；在「熊寶寶分類與配對遊戲」更精進了研究對象判斷「大」與「小」的穩定度。另根據結論提出五項建議，供有類似症狀的發展遲緩兒童家庭教養及實務之參考。

This research aims to explore strategies which used for promoting the cognitive ability of size for developmentally delayed children. In order to complete the aim, this research employed one sample, and adopted action research. And the conclusions are as follows: Exerting the game of bear's baby in line can quickly guide sample into study situation, promoting the concept of size by children's song, enhancing the cognitive ability of size by the jumping game of bear’s baby, and consolidating it by the game of classifying and pairing.
Basing on conclusions, this research offers five suggestions: 1. Let child have personally operate chance, as enhance his memory and cognitive ability。2. Using finger ballad as the mean to attract his attention. 3. Parent should take them as example for imitation.4. Can adopt the game of listening and selecting to cultivate the attitude of waiting.5. Can adopt multiple interactive role.