使用這些出色的托盤來探索分類和繪製圖表。透過長條圖、維恩圖和網絡圖托盤，掌握相似性、差異性及合併群組等具有挑戰性的概念。內含：三個 10 x 15 x 1 英吋（25 x 38 x 2 公分）托盤及詳細教學指南。這些分類托盤非常適合課堂或家庭使用，自閉症兒童也能透過互動方式練習重要技能，從中受益。
The clear plastic lets kids layer graphs on worksheets—my students finally understood Venn diagrams after using these. Built sturdy enough for daily classroom use.
I grabbed these for my first grader to sort buttons and shells, and the clear plastic makes it easy to check his work without dumping everything out. The three different graph styles mean we can move from simple grouping to a Venn diagram as he gets the hang of it.
The bar and Venn graph trays finally made grouping concepts click for my kid. The clear plastic wipes clean easily and the 10 x 15 size holds a decent pile of buttons or counters.