Place cards around the room or in one place.
Provide students with a recording sheet or have them use their notebooks to record their work.
You can print the recording sheet and answer key on the same page (see below), fold the page in half and laminate. This will allow students to do their work on one side and then flip it over to check their work when they are done. This also saves paper!
You can print and copy the recording sheets for students to write on and keep the answer key for yourself.
You can save copies and have students work in notebooks!