This QR code self checking activity can be used in 2nd -4th grade math as a small group activity, whole class lesson, or with students who need extra review. Print and laminate. Post task cards around the room. Give each student an answer sheet to record their answers. Students will need to access a mobile device with a camera to scan QR codes (iPad, iPod, Smart Phone, Tablet, etc.)
This activity includes 32 number line task cards.
Students will use a student answer sheet to record the time written on each task card. They will then use their device to scan the cards and check their answers.