Example: Pencil, Pen, Highlighter, Sticky Notes, Tape, Scissors Describe and Group the Items:

Pencil: Made of graphite and wood, used for writing Pen: Made of plastic, used for writing Highlighter: Made of plastic, used for highlighting Sticky Notes: Made of paper and adhesive, used for jotting notes Tape: Made of plastic, used for attaching Scissors: Made of metal, used for cutting Example Descriptions:

Material: Differentiate based on primary material (graphite, plastic, paper, metal) Function: Differentiate based on writing, highlighting, jotting, attaching, cutting Organize into Subgroups:

Material: Writing Utensils (Pencil, Pen, Highlighter) vs. Paper Products (Sticky Notes) vs. Adhesive (Tape) vs. Cutting Tool (Scissors) Function: Marking (Pencil, Pen, Highlighter) vs. Note-taking (Sticky Notes) vs. Attaching (Tape) vs. Cutting (Scissors) Create and Combine Groups to Form Couplets:

Couplet 1:

a. Item is used for marking Go to Couplet 2 b. Item is made of paper Go to Couplet 3 c. Item is used for attaching Tape d. Item is used for cutting Scissors Couplet 2:

a. Item is used for writing Go to Couplet 4 b. Item is used for highlighting Highlighter Couplet 3:

a. Item is used for note-taking Sticky Notes Couplet 4:

a. Item contains liquid ink Pen b. Item contains graphite core Pencil