Learning Resources Rainbow Ten-Frames Classroom Set. Add colour to hands-on maths learning with these vibrant rainbow ten-frame trays. There are 10 frames and 100 counters, along with 30 double-sided cards. Teachers can incorporate these into schemes of work to help students build a solid foundation in this essential area of maths learning. The Activity Guide and packaging are multilingual. 140 Piece Set. (Ages 5+)