Oh, no! The medieval music timeline has gotten mixed up! Can you sort it out? Cut out the squares and put them on the timeline in order. From the invention of the crwth (in 610) to the development of white notation (in 1425).
81 math counters (nine medieval pictures, nine counters each) for hands-on activities, games, picture graphs... Laminate before cutting. Print on sticker paper for stickers or on magnetic paper for magnets.