A straight strip or cylinder of plastic, wood, metal, or other rigid material marked with units for measuring length, typically in the form of a stick
"The teacher used a ruler to draw a straight line on the board."
A cover for holding loose sheets of paper, often with rings or clamps
"I keep all my important notes in a binder."
A sticky substance used to attach objects or materials together
"He used glue to fix the torn page in his notebook."
A tool used for cutting paper, cloth, etc., consisting of two blades joined together in the middle so that the sharp edges slide against each other
"She carefully used the scissors to cut out the shapes."
textbook
"The professor assigned several chapters from the textbook for the upcoming exam."
A felt-tip pen with brightly colored, transparent ink used for marking important text
"She used a highlighter to mark key sentences in her notes."
A small electronic device used to perform basic math operations
"You are allowed to use a calculator during the math exam."
A soft white limestone, used for writing or drawing
"The teacher wrote the lesson summary on the blackboard using chalk."
A device for fastening together sheets of paper with a staple or staples
"She used a stapler to bind the pages of her report."
A large board with a smooth white surface used for writing or drawing on with markers
"The instructor wrote the equations on the whiteboard."
A device used to project rays of light, usually to show images or text magnified on a screen
"We watched a documentary that was projected onto the screen using a projector."